u16 slicekit core board hardware manual · 2014. 7. 22. · u16 slicekit core board hardware manual...

U16 sliceKIT Core Board Hardware Manual

Document Number: XM-UNKNOWNA

Publication Date: 2014/7/22

XMOS © 2014, All Rights Reserved.

U16 sliceKIT Core Board Hardware Manual 2/29

SYNOPSIS

This document pertains to the 1V3 revision of the U16 sliceKIT Core Board.

XM-UNKNOWNA


Table of Contents

1 Overview 41.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.2 sliceKIT System Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Core Board 62.1 Multiple Core Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.2 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.3 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.4 Debug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.5 U16 Boot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.6 XMOS Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92.7 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92.8 Clocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92.9 Testpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92.10 Loop-back Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112.11 Diamond/Alt Diamond Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122.12 Slot Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.12.1 USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122.12.2 MIXED SIGNAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142.12.3 SQUARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162.12.4 DIAMOND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182.12.5 ALT DIAMOND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202.12.6 System Services Slot Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3 USB sliceCARDs 223.1 U16 USB Slice Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233.2 USB AB Slice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4 New Designs Based on sliceKIT 254.1 USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.1.1 USB Device (B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264.1.2 USB Host (A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264.1.3 Multi Mode USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.2 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264.2.1 Bus Powered Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264.2.2 Self Powered Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274.2.3 Bus or Self Powered Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274.2.4 Self Powered Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.3 Portmap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274.4 SPI Routing Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284.5 Debug Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284.6 Device Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5 Errata 295.1 1V2 Hardware SPI Bus Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

XM-UNKNOWNA

1 Overview

IN THIS CHAPTER

· Introduction

· sliceKIT System Layout

1.1 Introduction

This document covers the hardware design of the sliceKIT U16 Core Board, USBsliceCARDs and Mixed Signal sliceCARD.

The Core Board contains a fully pinned out 16-core xCORE-USB Processor, with itsGPIOs connected to two expansion connectors (termed Slots) to interface withexpansion cards called sliceCARDs which plug into the slots. The Core Board hastwo further specialist Slots, one for USB connectivity and one providing accessto the on chip ADC available on the xCORE device. The Core Board also containsall circuitry necessary for operating and debugging the XMOS system. MultiplesliceKIT Core Boards can be interconnected to form a multi XMOS device systemwith dual 5-bit XMOS Links being present between the boards. The U16 Core Boardis only capable of being the start of a chain i.e. the chain master.

1.2 sliceKIT System Layout

The diagram below shows an overview of the layout of the U16 Core Board withsliceCARDs attached. Each of the four slots has a specific label - Diamond, Square,USB (labelled U) and Mixed Signal (labelled A), printed on the U16 Core Boardsilkscreen. The Diamond Slice slot contains 24 xCORE IOs and the Square Sliceslot 20 xCORE IOs (usable as GPIO or two 5-wire XMOS links). The Mixed SignalSlice slot contains 8 xCORE IOs along with 8 ADC channels, and the USB Slice slotcontains 8 xCORE IOs along with the USB differential data signals. The label denoteswhich sliceCARDs are compatible with which Core Board Slots. The sliceCARDsare also marked with one or more of these labels to identify the slot type(s) theyfunction correctly with.

All Slots are 36 pin PCI express style connectors in either socket or edge finger(plug) types.

Diamond and Square Slots are pinned out from Tile 1 of the U16 xCORE and the USB(U) and Mixed Signal (A) Slots from Tile 0.

XM-UNKNOWNA


PAC101PAC102

COC1

PAC201PAC202COC2

PAC301PAC302

COC3

PAC401

PAC402COC4

PAC501

PAC502COC5

PAC602PAC601COC6 PAC702PAC701 COC7

PAC801PAC802

COC8

PAC901 PAC902

COC9PAC1001PAC1002

COC10

PAC1101PAC1102

COC11

PAC1201

PAC1202

COC12PAC1301

PAC1302

COC13

PAC1401

PAC1402COC14

PAC1501PAC1502COC15

PAC1601PAC1602

COC16

PAC1702PAC1701COC17

PAC1802PAC1801COC18

PAC1901PAC1902

COC19

PAC2001 PAC2002

COC20

PAC2102PAC2101COC21

PAC2202PAC2201COC22

PAC2301PAC2302COC23

PAC2402

PAC2401COC24

PAC2502 PAC2501COC25

PAC2601PAC2602COC26

PAC2701PAC2702COC27

PAC2801PAC2802

COC28

PAC2901 PAC2902 COC29

PAC3001

PAC3002

COC30

PAC3101PAC3102

COC31

PAC3201 PAC3202COC32

PAC3302

PAC3301COC33

PAC3401

PAC3402COC34

PAC3501

PAC3502COC35

PAC3602

PAC3601

COC36

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PAC3702

COC37

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COC42

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PAFB101 PAFB102COFB1

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PAJ120B2 PAJ120B3 PAJ120B4 PAJ120B5 PAJ120B6 PAJ120B7 PAJ120B8 PAJ120B9 PAJ120B10 PAJ120B11 PAJ120B12 PAJ120B13 PAJ120B14 PAJ120B15 PAJ120B16 PAJ120B17 PAJ120B18PAJ120B1PAJ120MT1 PAJ120MT2PAJ120A2 PAJ120A3 PAJ120A4 PAJ120A5 PAJ120A6 PAJ120A7 PAJ120A8 PAJ120A9 PAJ120A10 PAJ120A11 PAJ120A12 PAJ120A13 PAJ120A14 PAJ120A15 PAJ120A16 PAJ120A17 PAJ120A18PAJ120A1COJ12

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PAR1602

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PAU20V19PAU20V18PAU20V17PAU20V16PAU20V15PAU20V14PAU20V13PAU20V12PAU20V11PAU20V10PAU20V9PAU20V8PAU20V7PAU20V6PAU20V5PAU20V4PAU20V3PAU20V2PAU20V1

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PAU20N19PAU20N18PAU20N14PAU20N13PAU20N12PAU20N11PAU20N10PAU20N9PAU20N8PAU20N7PAU20N6PAU20N2PAU20N1

PAU20M19PAU20M18PAU20M14PAU20M13PAU20M12PAU20M11PAU20M10PAU20M9PAU20M8PAU20M7PAU20M6PAU20M2PAU20M1

PAU20L19PAU20L18PAU20L14PAU20L13PAU20L12PAU20L11PAU20L10PAU20L9PAU20L8PAU20L7PAU20L6PAU20L2PAU20L1

PAU20K19PAU20K18PAU20K14PAU20K13PAU20K12PAU20K11PAU20K10PAU20K9PAU20K8PAU20K7PAU20K6PAU20K2PAU20K1

PAU20J19PAU20J18PAU20J14PAU20J13PAU20J12PAU20J11PAU20J10PAU20J9PAU20J8PAU20J7PAU20J6PAU20J2PAU20J1

PAU20H19PAU20H18PAU20H14PAU20H13PAU20H12PAU20H11PAU20H10PAU20H9PAU20H8PAU20H7PAU20H6PAU20H2PAU20H1

PAU20G19PAU20G18PAU20G14PAU20G13PAU20G12PAU20G11PAU20G10PAU20G9PAU20G8PAU20G7PAU20G6PAU20G2PAU20G1

PAU20F19PAU20F18PAU20F14PAU20F13PAU20F12PAU20F11PAU20F10PAU20F9PAU20F8PAU20F7PAU20F6PAU20F2PAU20F1

PAU20E19PAU20E18PAU20E2PAU20E1

PAU20D19PAU20D18PAU20D2PAU20D1

PAU20C19PAU20C18PAU20C2PAU20C1

PAU20B19PAU20B18PAU20B17PAU20B16PAU20B15PAU20B14PAU20B13PAU20B12PAU20B11PAU20B10PAU20B9PAU20B8PAU20B7PAU20B6PAU20B5PAU20B4PAU20B3PAU20B2PAU20B1

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COU2

PAU301

PAU302

PAU303

PAU304PAU305PAU306

PAU307

PAU308

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PAU405PAU404

PAU403 PAU402 PAU401COU4

PAU501PAU502PAU503PAU504

PAU505 PAU506 PAU507 PAU508

COU5

PAU601 PAU602 PAU603

PAU604PAU605PAU606COU6



COU7



PAU809COU8

PAU907

PAU906

PAU905

PAU904 PAU903

PAU902

PAU901

COU9

PAU1005

PAU1004PAU1003

PAU1002

PAU1001 COU10

PAU1103

PAU1102

PAU1101

COU11

PAU1201PAU1202

PAU1203

PAU1204

PAU1205

PAU1206

PAU1207

PAU1208PAU1209

PAU12010

PAU12011

PAU12012

PAU12013

PAU12014

PAU12015

PAU12016

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PAU1307

PAU1306

PAU1305 PAU1304

PAU1303

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PAU1402

PAU1403

PAU1404

PAU1405PAU1406

PAU1407 PAU1408

PAU1409

PAU14010PAU14011

PAU14012

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PAU1501

PAU1502

PAU1503

PAU1504

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PAU1506

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PAU1508 PAU1509PAU15010

PAU15011

PAU15012

PAU15013

PAU15014

PAU15015

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PAU1601

PAU1602

PAU1603

PAU1604

PAU1605

PAU1606

PAU1607

PAU1608 PAU1609PAU16010

PAU16011

PAU16012

PAU16013

PAU16014

PAU16015

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PAU1701

PAU1702

PAU1703

PAU1704

PAU1705

PAU1706

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PAU17011

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PAU17013

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PAU1801 PAU1802 PAU1803

PAU1804PAU1805

COU18

PAU1903

PAU1902PAU1901COU19

PAU2001

PAU2002

PAU2003PAU2004

PAU2005COU20

PAU21017PAU21016PAU21015PAU21014PAU21013PAU21012PAU21011PAU21010PAU2109

PAU2108 PAU2107 PAU2106 PAU2105 PAU2104 PAU2103 PAU2102 PAU2101

COU21

PAU2201 PAU2202 PAU2203

PAU2204PAU2205 COU22PAU2301 PAU2302 PAU2303

PAU2304PAU2305

COU23

PAU2405PAU2404

PAU2403 PAU2402 PAU2401

COU24

PAU2506

PAU2505

PAU2504PAU2503

PAU2502

PAU2501

COU25

PAX101

PAX102COX1

PAX202

PAX201

COX2

PAC601

PAL101

PAU20V3

PAU20W3 PAU20W4

PAC701

PAC3101

PAL201

PAU20V8

PAU20W8 PAU20W9

PAU2005

PAC201

PAC801

PAC901PAC1201PAC1301

PAC1401

PAC2501

PAC2801

PAC2901

PAC3001

PAC3301 PAC3401

PAC3501

PAC4001

PAC4101 PAC4201

PAC4601PAC4701 PAC4801

PAC4901 PAC5101PAC5201

PAJ105

PAJ40A18

PAJ50B5

PAJ110B5 PAJ120B5

PAL402

PAR201

PAR902

PAR1002

PAR1102

PAR1202

PAR1302

PAR1402

PAR2302

PAR2402

PAR2602

PAR2702

PAR2902

PAR3202

PAR3702

PAR3902

PAR4402PAR4502

PATP601

PAU308

PAU405

PAU508

PAU605

PAU708

PAU1103

PAU12016

PAU1303

PAU1307

PAU1308

PAU1402

PAU1404

PAU14010

PAU14014

PAU15016 PAU16016 PAU17016

PAU1805 PAU2205PAU2305

PAU2405

PAU2505

PAC101

PAJ107PAJ109

PAR202PAU20K1 PAU20K2

PAC2701

PAC3901

PAJ50B1

PAJ701

PAU20N1

PAU1005

PAC501

PAC2401

PAC2601

PAC3601

PAC3701

PAC3801

PAC4301PAC4401PAC4501

PAC5001

PAJ101

PAJ40A4

PAJ40A5PAJ40B4

PAJ40B5

PAJ50A2

PAJ110A2 PAJ120A2

PAR102

PAR302

PAR2002

PATP501

PAU1014

PAU904

PAU905

PAU1001

PAU1003

PAU1903PAU2109 PAU21010 PAU21015 PAU21016 PAU906

PAU1902

PAJ50B6

PAJ703

PAU20R1

PAJ50B7

PAJ704

PAU20R2

PAJ50B10

PAJ705

PAU20P1

PAJ50B11

PAJ706

PAU20P2

PAJ50A6

PAJ707

PAU20M1

PAJ50A7

PAJ708

PAU20M2

PAJ50A9

PAJ709

PAU20L1

PAJ50A17

PAJ7010

PAU20L2

PAR2601

PAU20J2

PAU701

PAU1102

PAU1401

PAU14013

PAU2506

PAJ110B14

PAR402

PAJ120B14

PAR602

PAR502

PAU20U1

PAJ2011

PAR1101

PAU20M18

PAU503

PAJ120B1

PAU505

PAJ1402PAR4002

PAU1501 PAU1601 PAU1701

PAC102

PAC202

PAC302

PAC402

PAC502

PAC602 PAC702

PAC802

PAC902

PAC1002

PAC1102

PAC1202PAC1302

PAC1402

PAC1502

PAC1602

PAC1702

PAC1802

PAC2102

PAC2202

PAC2302

PAC2402

PAC2502

PAC2602

PAC2702

PAC2802

PAC2902

PAC3002

PAC3102

PAC3202

PAC3302

PAC3402

PAC3502

PAC3602

PAC3702

PAC3802

PAC3902

PAC4002

PAC4102 PAC4202

PAC4302

PAC4402PAC4502

PAC4602

PAC4702 PAC4802

PAC4902

PAC5002

PAC5102PAC5202

PAC5302

PAC5402PAD302

PAD401

PAJ102PAJ104PAJ106PAJ108PAJ1010PAJ1012PAJ1014PAJ1016

PAJ204PAJ208PAJ2012PAJ2016PAJ2020

PAJ302

PAJ303

PAJ40A3

PAJ40A6

PAJ40A12

PAJ40A13PAJ40A14

PAJ40A15

PAJ40A16

PAJ40B3

PAJ40B6

PAJ40B9

PAJ40B12

PAJ40B13

PAJ40B16

PAJ40B17PAJ40B18

PAJ50A5PAJ50A8PAJ50A10PAJ50A11PAJ50A14PAJ50A18 PAJ50B3PAJ50B8PAJ50B9PAJ50B12PAJ50B16PAJ50B17

PAJ702PAJ801PAJ802

PAJ110A5 PAJ110A10 PAJ110A14PAJ110B3 PAJ110B8 PAJ110B16 PAJ120A10 PAJ120A14PAJ120B3 PAJ120B8 PAJ120B16

PAJ1301PAJ1302

PAMTH101PAMTH201

PAMTH301 PAMTH401PAR2101PAR2201

PAR2401

PAR2501

PAR3101

PAR3401PAR3501

PAR3601

PAR3801

PAR4001

PASW103

PATP101

PATP301

PATP401

PAU107

PAU20F6 PAU20F7 PAU20F8 PAU20F9 PAU20F10 PAU20F11 PAU20F12 PAU20F13 PAU20F14

PAU20G6 PAU20G7 PAU20G8 PAU20G9 PAU20G10 PAU20G11 PAU20G12 PAU20G13 PAU20G14 PAU20G18

PAU20H6 PAU20H7 PAU20H8 PAU20H9 PAU20H10 PAU20H11 PAU20H12 PAU20H13 PAU20H14

PAU20J6 PAU20J7 PAU20J8 PAU20J9 PAU20J10 PAU20J11 PAU20J12 PAU20J13 PAU20J14

PAU20K6 PAU20K7 PAU20K8 PAU20K9 PAU20K10 PAU20K11 PAU20K12 PAU20K13 PAU20K14

PAU20L6 PAU20L7 PAU20L8 PAU20L9 PAU20L10 PAU20L11 PAU20L12 PAU20L13 PAU20L14 PAU20L18

PAU20M8 PAU20M9 PAU20M10 PAU20M11 PAU20M12 PAU20M13 PAU20M14

PAU20N8 PAU20N9 PAU20N10 PAU20N11 PAU20N12 PAU20N13 PAU20N14

PAU20P6 PAU20P7 PAU20P8 PAU20P9 PAU20P10 PAU20P11 PAU20P12 PAU20P13 PAU20P14

PAU20V4 PAU20V5 PAU20V9 PAU20V10

PAU20W5 PAU20W10

PAU304

PAU403

PAU504

PAU602

PAU704

PAU804

PAU809

PAU902PAU907

PAU1002

PAU1101

PAU1208

PAU12015

PAU1304

PAU1407

PAU1508

PAU15015

PAU1608

PAU16015 PAU17015

PAU1803

PAU1901

PAU2001

PAU2003

PAU21017

PAU2203PAU2303

PAU2403

PAU2502

PAJ203

PAR1001PAU20H18

PAU20J18

PAU506

PAJ120A1

PAU502

PAC1001

PAR701PAU402

PAX101PAC1101

PAR801 PAX102

PAC1501

PAF101PAJ301

PAC1601

PAC1701

PAC1801

PAFB102

PAR1802

PAU802PAC1901

PAD201

PAU801PAC1902

PAL301

PAU803

PAC2001

PAU806

PAC2002 PAR2102

PAC2101

PAC2201

PAD202PAL302

PAR1902

PAR3302

PAU2101PAU2102

PAC2301

PAU808

PAC3201

PAR3001PAU14011

PAC5301

PAR4201

PAX202PAC5401

PAR4101PAU2402

PAX201PAD101

PAD301 PAFB101

PAD102PAF102

PAD402PAR2001

PAJ1401 PAR3201

PAJ1501

PAR3701

PAJ1502

PAR3802

PAU1801PAU2302

PAL102

PAU20V6

PAU20W6

PAL202

PAU20V11

PAU20W11

PAL401

PAU903

PAR101 PASW102

PAU101 PAU104

PAU1010PAU1013

PAR401

PAU307

PAR501 PAU2004

PAR601

PAU305

PAR1501PAU604

PAR1601

PAU705

PAR1701PAU702

PAR1801

PAU807 PAR1901 PAR2202PAU805

PAR2301PAR2502PAU901

PAR2801

PAR2901

PAU1201

PAU1408

PAR3002 PAU1405

PAR3301

PAR3602

PAU2103PAU2106

PAR3402

PAU2104

PAR3502

PAU2105

PAR3901

PAU2201

PAU2304

PAR4302

PAU20G2

PAR702

PAR802

PAU404

PAU2002

PAR4102

PAR4202

PAU301

PAU303

PAU2404

PAJ120A5

PAR901 PAU606

PAJ40A11

PAJ50A16

PAJ110A16 PAJ120A16

PAU707

PAJ2015

PAR1201

PAU2501

PAU12010

PAU1306

PAR2701

PAU1206

PAU1301

PAU1203

PAU1302

PAU12013

PAU1305

PAJ209

PAR1301PAU20L19

PAU703

PAJ120B2

PAR1602

PAJ120B4

PAU603

PAJ205

PAU20N19

PAJ2013

PAR1502

PAJ120A4

PAU20K19

PAU601

PAJ207

PAR1401PAU20M19

PAU706

PAJ120A3

PAR1702

PAJ40B15

PAU20G1

PAJ40B14

PAU20H1

PAJ40A17

PAFB201PAJ40A1PAJ40A2

PAJ40B1PAJ40B2

PAFB202 PAR4301

PAU2107PAU2108

PAC301

PAC401

PAJ103PAJ1011PAR301

PAU20V7

PAU20W1 PAU20W7

PAU20R19

PAU1204

PAJ40A7

PAJ601

PAU1202

PAU20T19

PAU1207

PAJ50B15

PAJ602

PAU1205

PAU20U19

PAU1209

PAJ50B2

PAJ603

PAU12011

PAU20V19

PAU12012

PAJ40A8

PAJ604

PAU12014

PAJ40A9

PAJ605

PAR4501

PAU20W19

PAJ606

PAU20W18

PAU1804 PAU2204

PAJ50A3PAU1802

PAJ40B7

PAJ607

PAR2802

PAU20W17

PAU14012

PAJ40B8

PAJ608

PAR3102

PAU20V17

PAU1403

PAJ50B13

PAJ609

PAU103

PAU20W16

PAJ50B14

PAJ6010

PAU106

PAU20V16

PAJ50A4

PAJ6011

PAU108

PAU20W15

PAJ50A12

PAJ6012

PAU1011PAU20V15

PAJ40B10

PAJ6013

PAU20W14PAJ40B11

PAJ6014

PAU20V14

PAJ50B4

PAJ6015

PAU20W13

PAJ6016

PAU20V13

PAJ40A10

PAJ6017

PAR4401

PAU20P19

PAJ6018

PAU20J1

PAJ901

PAJ110B2

PAU20F1

PAJ1006

PAJ120A8

PAU20E1

PAJ1001

PAJ120B6

PAU20D1

PAJ1003

PAJ120B7

PAU20C1

PAJ1005

PAJ120B9

PAU20B1

PAJ1009

PAJ120B11

PAU20A1

PAJ1008

PAJ120A9

PAU20A2

PAJ10010

PAJ120A11

PAU20A3

PAJ1002

PAJ120A6

PAU20A4

PAJ1004

PAJ120A7

PAU20A5

PAJ1007

PAJ120B10

PAU20A6

PAJ903

PAJ110B4

PAU20A7

PAJ902

PAJ110A3

PAU20A8

PAU2202

PAJ10016

PAJ120A15

PAU20A9

PAJ10011

PAJ120B12

PAU20A10

PAJ10013

PAJ120B13

PAU20A11

PAJ10017

PAJ120B17

PAU20A12

PAJ10019

PAJ120B18

PAU20A13

PAJ10018

PAJ120A17

PAU20A14

PAJ10020

PAJ120A18

PAU20A15

PAJ10012

PAJ120A12

PAU20A16

PAJ10014

PAJ120A13

PAU20A17

PAJ10015

PAJ120B15

PAU20A18

PAJ904

PAJ110A4

PAU20A19

PAJ9027

PAJ110B15

PAU20B18

PAJ9010

PAJ110A8

PAU20B19

PAJ909

PAU20C18

PAU1603

PAJ9015

PAU20C19

PAU1606

PAJ9012

PAU20D19

PAU15010

PAJ9016

PAU20D18

PAU15013

PAJ9013

PAJ110B10

PAU20E19

PAJ9024

PAJ110A15

PAU20E18

PAJ9019

PAU20F19

PAU16010

PAJ9023

PAU20G19

PAU16013

PAJ9029

PAU20H19

PAU1703

PAJ9033

PAU20J19

PAU1706

PAJ905

PAJ110B6

PAU20F2

PAJ907

PAJ110B7

PAU20E2

PAJ9011

PAU20D2

PAU1503

PAU1602

PAJ110B9

PAU1604

PAJ9017

PAU20C2

PAU1506

PAU1605

PAJ110B11

PAU1607

PAJ9014

PAU20B2

PAU15011

PAJ110A9

PAU1509

PAJ9018

PAU20B3

PAU15014

PAJ110A11

PAU15012

PAJ906

PAU20B4

PAU1502

PAJ110A6

PAU1504

PAJ908

PAU20B5

PAU1505

PAJ110A7

PAU1507

PAJ9021

PAU20B6

PAU16011

PAJ110B12

PAU1609

PAJ9025

PAU20B7

PAU16014

PAJ110B13

PAU16012

PAJ9031

PAU20B8

PAU1702

PAJ110B17

PAU1704

PAJ9035

PAU20B9

PAU1705

PAJ110B18

PAU1707

PAJ9026

PAJ110A17

PAU20B10

PAJ9028

PAJ110A18

PAU20B11

PAJ9020

PAJ110A12

PAU20B12

PAJ9022

PAJ110A13

PAU20B13

PAJ9030

PAU20B14

PAJ9032

PAU20B15

PAJ9034

PAU20B16

PAJ9036

PAU20B17

PAJ2014

PAU109

PAJ2018

PAU1012

PAJ2010

PAU105

PAJ206

PAU102

Figure 1:

sliceKITsystem

diagram

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2 Core Board

IN THIS CHAPTER

· Multiple Core Boards

· Setup

· Power Supply

· Debug

· U16 Boot

· XMOS Links

· Reset

· Clocking

· Testpoints

· Loop-back Port

· Diamond/Alt Diamond Slot

· Slot Pinouts

The Core Board contains the XMOS device plus support circuitry.

A single XS1-U16A-128 device has all of its GPIO connected to the Slots.

2.1 Multiple Core Boards

Additional L2 and A16 sliceKIT Core Boards can be connected to the first board’sSquare slot via the second board’s Chain Slot to add extra processing capabilityand I/O through extra sliceCARDs. The first such board is termed the Master, theremaining boards as Slaves. When there is only one board, it is the Master.

2.2 Setup

The Core Board is powered by a 12V external power supply.

For debugging, an XSYS connector is available on the Core Board to allow connec-tion of an xTAG to provide a debug link from a USB host.

2.3 Power Supply

Power input to the sliceKIT Core Board is via a standard barrel jack connector. Astandard 12V external power supply should be used to power the board. Each CoreBoard requires its own 12V supply. This input supply is used to generate the main5V board supply via a DC-DC converter.

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Figure 2:

U16 sliceKITCore Board

The 5V board supply is then fed to all the Slot connectors as well as powering theCore Board itself. A 3V3 I/O supply is generated by a DC-DC converter from the 5Vmain supply, and a 3V3 analogue supply is generated by an LDO converter fromthe 5V main supply.

The Core Board provides 3V3 and 5V at 0.25A to each slot for a total of approxi-mately 2W per slice.

2.4 Debug

Debug of the system is via the XSYS Connector.

The JTAG signals are connected as shown below.

A presence detect signal is present on both the Square Slot connector to allowdetection of a connected board and subsequent automatic switching of the JTAGchain. In a system of multiple Core Boards, the Master is the source of the JTAGchain so the system can only be debugged from the master. Other boards will seeno devices in the JTAG chain.

The use of xSCOPE is covered in the XMOS Links section (2.6). The xSCOPExCONNECT link can be either enabled or disabled via a switch on the Core Boardlabelled XLINK.

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SQUARE SLOT

XTA

GTCK

TDITDO

0

1TDO

TCK

, TM

S

TDO

TDI

PR

SN

T_N

0

1

U16

TMSTDI

TCKTMS

Figure 3:

JTAG Chain

2.5 U16 Boot

Master Core Boards boot from SPI flash, while slave Core Boards boot from xCON-NECT link XLB from the next connected Core Board.

To allow re-use of the SPI boot pins (ports 1A, 1B, 1C, 1D) as signal I/O pins for theUSB and Mixed Signal slot, a latched bus switch is used which connects the xCORESPI pins to either the SPI Flash or to the sliceCARD Slots. The switch is controlledby X0D14 and X0D15. Once the device has booted X0D14 is used to enable ordisable the SPI interface, X0D15 should then transition from low to high to latchthe selection. The SPI selection state is then maintained until the system is reset.

Reset

Boot

D15 = 0 D14 = X SPI = EN

D15 = 0 D14 = X SPI = EN

DisableD15 = D14 = 1

SPI = DIS

EnableD15 = D14 = 0

SPI = EN

D15, D14, D0, D1, D10 and D11

available

D15 and D14 availableD0, D1, D10 and D11

used by SPI

Figure 4:

SPI SelectFlow Diagram

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Once this sequence is completed the selection has been latched therefore X0D14and X0D15 return to performing their normal functions in the USB slot.

If the SPI is not disabled, then sliceCARDs in the USB and Mixed Signal slots maynot function as expected. If there are no sliceCARDs in the USB or Mixed Signalslots, then it does not matter whether the SPI has been disabled or not. Therefore,applications which require runtime access to the SPI flash should either leave theUSB and Mixed Signal slots unpopulated or check to ensure that the Card(s) whichare in there will be unaffected by the operation of the Flash.

The XTAG2 system can use the boot mode select signal to force all devices in thechain (master and slave Core Boards) to boot from JTAG (don’t boot) for debugpurposes.

If not in this mode, the devices will boot from SPI or xCONNECT link as appropriate.

2.6 XMOS Links

The Square slot contains two 5-bit XMOS Links, XLA and XLB, which can be usedfor chaining sliceKIT Core Boards together.

It is recommended that if a sliceCARD that requires the use of the 4-bit port(X0D16-19) is used in the Mixed Signal Slot the xSCOPE switch is off on the CoreBoard to ensure correct operation of the sliceCARD in the Mixed Signal slot. Thisis due to the 4-bit port being shared with the xSCOPE xCONNECT link.

2.7 Reset

The whole system is held in reset until all power supplies are stable, and reset isconnected to all sliceCARDs so any circuitry on them can be reset. It also indicatesto the sliceCARDs that their power input is stable. The reset from the XTAG2 resetsthe whole system, if required for debugging.

2.8 Clocking

There are two clock sources available on the Core Board. One provides a 25MHzsystem clock, the other is a 24MHz clock provided to the U16 device.

The system clock from a Master Core Board is fed automatically to all of the slaveCore Boards so the whole system will operate synchronously.

The system clock is also fed to each of the sliceCARD slots.

2.9 Testpoints

Each xCORE I/O signal is also available on a 0.1” header, next to the Slot that it isconnected to. These connections can be used to connect an oscilloscope or logicanalyzer, or for interconnection of signals for advanced development work.

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The signals are identified on the silkscreen layer of the sliceKIT Core Board, thetable below lists their relationship to the internal ports.

U16 Pin Slot PCIE Function

X0D0 USB A7 P1A0

X0D1 MIXED SIG B15 P1B0

X0D10 MIXED SIG B2 P1C0

X0D11 USB A8 P1D0

X0D12 USB A9 P1E0

X0D13 MIXED SIG A3 P1F0

X0D14 USB B7 P4C0 P8B0 P16A8 P32A28

X0D15 USB B8 P4C1 P8B1 P16A9 P32A29

X0D16 MIXED SIG B13 P4D0 P8B2 P16A10

X0D17 MIXED SIG B14 P4D1 P8B3 P16A11

X0D18 MIXED SIG A4 P4D2 P8B4 P16A12

X0D19 MIXED SIG A12 P4D3 P8B5 P16A13

X0D20 USB B10 P4C2 P8B6 P16A14 P32A30

X0D21 USB B11 P4C3 P8B7 P16A15 P32A31

X0D22 MIXED SIG B4 P1G0

X0D24 NA NA P1I0

X0D35 USB A10 P1L0

X0D43 NA NA P8D7 P16B15

X1D0 DIAMOND B2 P1A0

X1D1 SQUARE A8 P1B0

X1D2 SQUARE B6 P4A0 P8A0 P16A0 P32A20

X1D3 SQUARE B7 P4A1 P8A1 P16A1 P32A21

X1D4 SQUARE B9 P4B0 P8A2 P16A2 P32A22

X1D5 SQUARE B11 P4B1 P8A3 P16A3 P32A23

X1D6 SQUARE A9 P4B2 P8A4 P16A4 P32A24

X1D7 SQUARE A11 P4B3 P8A5 P16A5 P32A25

X1D8 SQUARE A6 P4A2 P8A6 P16A6 P32A26

X1D9 SQUARE A7 P4A3 P8A7 P16A7 P32A27

X1D10 SQUARE B10 P1C0

X1D11 DIAMOND B4 P1D0

X1D12 DIAMOND A3 P1E0

X1D13 SQUARE A15 P1F0

X1D14 SQUARE B12 P4C0 P8B0 P16A8 P32A28

X1D15 SQUARE B13 P4C1 P8B1 P16A9 P32A29

X1D16 SQUARE B17 P4D0 P8B2 P16A10

X1D17 SQUARE B18 P4D1 P8B3 P16A11

X1D18 SQUARE A17 P4D2 P8B4 P16A12

X1D19 SQUARE A18 P4D3 P8B5 P16A13

X1D20 SQUARE A12 P4C2 P8B6 P16A14 P32A30

(continued)

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U16 Pin Slot PCIE Function

X1D21 SQUARE A13 P4C3 P8B7 P16A15 P32A31

X1D22 SQUARE B15 P1G0

X1D23 DIAMOND A4 P1H0

X1D24 DIAMOND B15 P1I0

X1D25 DIAMOND A8 P1J0

X1D26 ALT DIAMOND B9 P4E0 P8C0 P16B0

X1D27 ALT DIAMOND B11 P4E1 P8C1 P16B1

X1D32 ALT DIAMOND A9 P4E2 P8C6 P16B6

X1D33 ALT DIAMOND A11 P4E3 P8C7 P16B7

X1D34 DIAMOND B10 P1K0

X1D35 DIAMOND A15 P1L0

X1D36 ALT DIAMOND B12 P1M0 P8D0 P16B8

X1D37 ALT DIAMOND B13 P1N0 P8D1 P16B9

X1D38 ALT DIAMOND B17 P1O0 P8D2 P16B10

X1D39 ALT DIAMOND B18 P1P0 P8D3 P16B11



X1D51 ALT DIAMOND A6 P32A2

X1D52 ALT DIAMOND A7 P32A3

X1D53 DIAMOND A9 P32A4












X1D67 NA NA P32A16

X1D68 NA NA P32A17

X1D69 NA NA P32A18

X1D70 NA NA P32A19

2.10 Loop-back Port

Jumper J15 can be used to enable a loop-back between a 1-bit port on each ofthe two tiles. With the loop-back enabled port X0D13 is connected to X1D12, and

XM-UNKNOWNA


disconnected from the Mixed Signal slot. With the loop-back disabled X0D13 isconnected to the Mixed Signal slot.

2.11 Diamond/Alt Diamond Slot

The I/Os connected to the Diamond slot can be changed to an alternative configura-tion known as Alt Diamond, this is controlled by setting the jumper J14.

The Diamond configuration exposes 16 bits of the 32-bit port, which can be usefulfor applications requiring a wide bus, the Alt Diamond configuration exposes more1-bit ports.

2.12 Slot Pinouts

The signal assignments for the connectors on the Core Board and sliceCARDs canbe seen in the table below.

2.12.1 USB

PCIE B (TOP) SIGNAL FUNCTION

B1 VBUS IN VBUS FROM USB CONNECTOR

B2 VBUS IN VBUS FROM USB CONNECTOR

B3 GND POWER SUPPLY GROUND

B4 VBUS OUT VBUS TO USB CONNECTOR

B5 VBUS OUT VBUS TO USB CONNECTOR


B7 X0D14 P4C0 P8B0 P16A8 P32A28

B8 X0D15 P4C1 P8B1 P16A9 P32A29


B10 X0D20 P4C2 P8B2 P16A10

B11 X0D21 P4C3 P8B3 P16A11

KEY KEY MECHANICAL KEY



B14 USB DP USB DATA POSITIVE

B15 USB DN USB DATA NEGATIVE




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PCIE A (BOT) SIGNAL FUNCTION

A1 VBUS IN VBUS FROM USB CONNECTOR

A2 VBUS IN VBUS FROM USB CONNECTOR

A3 GND POWER SUPPLY GROUND

A4 VBUS OUT VBUS TO USB CONNECTOR

A5 VBUS OUT VBUS TO USB CONNECTOR


A7 X0D0 P1A0

A8 X0D11 P1D0

A9 X0D12 P1E0

A10 X0D35 P1L0

A11 NC NOT CONNECTED








A18 3V3 3.3V POWER SUPPLY

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2.12.2 MIXED SIGNAL


B1 3V3A ANALOG 3.3V POWER SUPPLY

B2 X0D10 P1C0


B4 X0D22 P1G0

B5 3V3 3.3V POWER SUPPLY

B6 ADC0 ADC CHANNEL 0








B13 X0D16 P4D0 P8B2 P16A10

B14 X0D17 P4D1 P8B3 P16A11

B15 X0D1 P1B0



B18 NC NOT CONNECTED

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A1 NC NOT CONNECTED

A2 5V POWER SUPPLY 5V

A3 X0D13 P1F0

A4 X0D18 P4D2 P8B4 P16A12


A6 ADC4 ADC CHANNEL 4







A12 X0D19 P4D3 P8B5 P16A13




A16 RST_N SYSTEM RESET (ACTIVE LOW)



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2.12.3 SQUARE


B1 DEBUG XSYS DEBUG SIGNAL

B2 TCK XSYS TCK SIGNAL


B4 TDI XSYS TDI SIGNAL

B5 3V3 POWER SUPPLY 3.3V

B6 X1D2 P4A0 P8A0 P16A0 P32A20

B7 X1D3 P4A1 P8A1 P16A1 P32A21


B9 X1D4 P4B0 P8A2 P16A2 P32A22

B10 X1D10 P1C0

B11 X1D5 P4B1 P8A3 P16A3 P32A23


B12 X1D14 P4C0 P8B0 P16A8 P32A28

B13 X1D15 P4C1 P8B1 P16A9 P32A29

B14 CLK MAIN SYSTEM CLOCK

B15 X1D22 P1G0


B17 X1D16 P4D0 P8B2 P16A10

B18 X1D17 P4D1 P8B3 P16A11

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A1 MSEL XSYS MSEL SIGNAL


A3 TMS XSYS TMS SIGNAL

A4 TDO XSYS TDO SIGNAL

A5 PRSNT SYSTEM PRESENT SIGNAL (ACTIVE LOW)

A6 X1D8 P4A2 P8A6 P16A6 P32A26

A7 X1D9 P4A3 P8A7 P16A7 P32A27

A8 X1D1 P1B0

A9 X1D6 P4B2 P8A4 P16A4 P32A24


A11 X1D7 P4B3 P8A5 P16A5 P32A25


A12 X1D20 P4C2 P8B6 P16A14 P32A30

A13 X1D21 P4C3 P8B7 P16A15 P32A31


A15 X1D13 P1F0


A17 X1D18 P4D2 P8B4 P16A12

A18 X1D19 P4D3 P8B5 P16A13

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2.12.4 DIAMOND


B1 NC NOT CONNECTED

B2 X1D0 P1A0


B4 X1D11 P1D0


B6 X1D49 P32A0

B7 X1D50 P32A1


B9 X1D51 P32A2

B10 X1D34 P1K0

B11 X1D52 P32A3


B12 X0D57 P32A8

B13 X1D58 P32A9


B15 X1D24 P1I0


B17 X1D61 P32A10

B18 X1D62 P32A11

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A1 NC NOT CONNECTED


A3 X1D12 P1E0

A4 X1D23 P1H0


A6 X1D55 P32A6

A7 X1D51 P32A7

A8 X1D25 P1J0

A9 X1D53 P32A4


A11 X1D54 P32A5


A12 X1D65 P32A14

A13 X1D66 P32A15


A15 X1D35 P1L0


A17 X1D63 P32A12

A18 X1D64 P32A13

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2.12.5 ALT DIAMOND


B1 NC NOT CONNECTED

B2 X1D0 P1A0


B4 X1D11 P1D0


B6 X1D49 P32A0

B7 X1D50 P32A1


B9 X1D26 P4E0 P8C0 P16B0

B10 X1D34 P1K0

B11 X1D27 P4E1 P8C1 P16B1


B12 X0D36 P1M0 P8D0 P16B8

B13 X1D37 P1N0 P8D1 P16B9


B15 X1D24 P1I0


B17 X1D38 P1O0 P8D2 P16B10

B18 X1D39 P1P0 P8D3 P16B11

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A1 NC NOT CONNECTED


A3 X1D12 P1E0

A4 X1D23 P1H0


A6 X1D51 P32A7

A7 X1D52 P32A8

A8 X1D25 P1J0

A9 X1D32 P4E2 P8C6 P16B6


A11 X1D33 P4E3 P8C7 P16B7


A12 X1D65 P32A14

A13 X1D66 P32A15


A15 X1D35 P1L0


A17 X1D63 P32A12

A18 X1D64 P32A13

2.12.6 System Services Slot Signals

On all Slots, TDO is always out of the sliceKIT Core Board, TDI is always in to theCore Board.

MSEL, TCK, TMS, RST_N are all inputs to the Core Board from the XSYS Connectorand outputs from the Core Board on the Square Slot.

DEBUG is bidirectional.

PRSNT_N is used on the Square Slot to detect another Core Board is connected.This signal is used to switch the JTAG chain signals.

CLK and RST_N are output from all Slots.

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3 USB sliceCARDs

IN THIS CHAPTER

· U16 USB Slice Pinout

· USB AB Slice

USB sliceCARDs connect to the PCI-E 36 pin connector J4 on the U16 Core Board.They have a unique key design in order to prevent them being plugged in to nonUSB slice slots and prevent non USB slices being plugged in to a USB slice slot.The detail for the key design and the PCI-E 36 card edge finger can be seen in thefigure below:

PAC101

PAC102COC1

PAD101 PAD102 PAD103

PAD104PAD105

COD1

PAJ10B1

PAJ10B2

PAJ10B3

PAJ10B4

PAJ10B5

PAJ10B6

PAJ10B7PAJ10B8

PAJ10B9

PAJ10B10

PAJ10B11

PAJ10B12

PAJ10B13PAJ10B14

PAJ10B15

PAJ10B16PAJ10B17

PAJ10B18

PAJ10A1

PAJ10A2

PAJ10A3

PAJ10A4

PAJ10A5

PAJ10A6

PAJ10A7PAJ10A8

PAJ10A9

PAJ10A10

PAJ10A11

PAJ10A12

PAJ10A13PAJ10A14

PAJ10A15

PAJ10A16PAJ10A17

PAJ10A18COJ1

PAJ202

PAJ201 PAMECH101COMECH1

PAC102

PAD104

PAJ10A3

PAJ10A6

PAJ10A12

PAJ10A13PAJ10A14

PAJ10A15

PAJ10A16PAJ10A17

PAJ10B3

PAJ10B6

PAJ10B9

PAJ10B12

PAJ10B13

PAJ10B16PAJ10B17

PAJ10B18

PAD105 PAJ10B15

PAJ202 PAD103 PAJ10B14

PAC101

PAD101

PAJ10A1

PAJ10A2

PAJ10B1

PAJ10B2

PAJ201

Figure 5:

USB SliceDetail

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3.1 U16 USB Slice Pinout

The table below details the pinout of the USB slice connector from the U16 CoreBoard:

PCIE B SIGNAL FUNCTION PCIE A SIGNAL FUNCTION

(TOP) (BOT)

B1 VBUS IN VBUS FROM USB HOST A1 VBUS IN VBUS FROM USB HOST

B2 VBUS IN VBUS FROM USB HOST A2 VBUS IN VBUS FROM USB HOST

B3 GND POWER SUPPLYGROUND

A3 GND POWER SUPPLYGROUND

B4 VBUS OUT VBUS TO USB DEVICE A4 VBUS OUT VBUS TO USB DEVICE

B5 VBUS OUT VBUS TO USB DEVICE A5 VBUS OUT VBUS TO USB DEVICE



B7 X0D14 USB SEL 1 A7 X0D0 RESERVED

B8 X0D15 USB SEL 2 A8 NC NOT CONNECTED


A9 X0D11 I2C SCL

B10 X0D20 RESERVED FOR MFI A10 X0D35 I2C SDA

B11 X0D21 RESERVED FOR MFI A11 NC NOT CONNECTED

KEY KEY MECHANICAL KEY KEY KEY MECHANICAL KEY





B14 USB DP USB DATA POSITIVE A14 GND POWER SUPPLYGROUND

B15 USB DN USB DATA NEGATIVE A15 GND POWER SUPPLYGROUND






A18 3V3 3.3V POWER SUPPLY

Figure 6:

USB SlicePinout

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3.2 USB AB Slice

The USB AB slice consists of a USB A connector, USB B connector and a high-speed2:1 switch to select between them.

By default the USB data signals from the B type connector are routed to the U8device on the U16 board. When the USB B connector is being routed the LED nextto the connector is illuminated. In order to route the USB data signals from the Atype connector the USB_SEL line should be bought high. When the USB A connectoris being routed the LED next to the connector is illuminated.

5V is supplied to the USB A connector to provide VBUS to connected devices.

The figure below shows the layout of the USB A/B slice:

PAC101

PAC102

COC1

PAC201

PAC202COC2

PAC301 PAC302 COC3

PAC401 PAC402 COC4

PAC501 PAC502 COC5

PAC601PAC602

COC6

PAC701 PAC702 COC7

PAD102

PAD101

COD1

PAD202

PAD201

COD2

PAJ10B1

PAJ10B2

PAJ10B3

PAJ10B4PAJ10B5

PAJ10B6

PAJ10B7PAJ10B8PAJ10B9

PAJ10B10

PAJ10B11

PAJ10B12

PAJ10B13PAJ10B14

PAJ10B15

PAJ10B16PAJ10B17

PAJ10B18

PAJ10A1

PAJ10A2

PAJ10A3

PAJ10A4PAJ10A5

PAJ10A6

PAJ10A7PAJ10A8PAJ10A9

PAJ10A10

PAJ10A11

PAJ10A12

PAJ10A13PAJ10A14

PAJ10A15

PAJ10A16PAJ10A17

PAJ10A18

COJ1

PAJ206

PAJ205

PAJ204

PAJ203PAJ202

PAJ201

COJ2

PAJ306

PAJ305

PAJ304

PAJ303 PAJ302

PAJ301COJ3

PAMECH101COMECH1

PAMTH101COMTH1

PAMTH201COMTH2

PAQ103

PAQ102

PAQ101

COQ1

PAQ203

PAQ202

PAQ201

COQ2

PAR101

PAR102COR1

PAR201 PAR202

COR2

PAR301 PAR302COR3

PAR401

PAR402COR4

PAU1010 PAU109PAU108

PAU107


PAU102

PAU101

COU1

PAU208

PAU207PAU206

PAU205PAU204

PAU203

PAU202

PAU201

COU2

PAC101

PAC601

PAJ10A18

PAQ202

PAR202

PAR402

PAU1010

PAU208

PAJ10B11

PAR401

PAU207

PAC102

PAC202

PAC302

PAC402

PAC502

PAC602

PAC702

PAD201

PAJ10A3

PAJ10A6

PAJ10A12

PAJ10A13PAJ10A14

PAJ10A15

PAJ10A16PAJ10A17

PAJ10B3

PAJ10B6

PAJ10B9

PAJ10B12

PAJ10B13

PAJ10B16PAJ10B17

PAJ10B18

PAJ204

PAJ304

PAMTH101

PAMTH201PAQ102

PAR101

PAU105 PAU106

PAU201

PAC401PAJ206

PAC701

PAJ305

PAD101

PAQ103

PAD102 PAR201

PAD202

PAR301

PAQ203

PAR302

PAJ10A9

PAU206

PAJ10A10

PAU202

PAJ202

PAU103

PAJ203

PAU104

PAJ302

PAU101

PAJ303

PAU102

PAJ10B15PAU108

PAJ10B14

PAU107

PAJ10B7

PAQ101

PAQ201

PAR102

PAU109

PAC201

PAC501

PAJ10A1

PAJ10A2

PAJ10B1

PAJ10B2

PAJ301

PAC301

PAJ10A4PAJ10A5

PAJ10B4PAJ10B5

PAJ201

Figure 7:

USB AB Slice

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4 New Designs Based on sliceKIT

IN THIS CHAPTER

· USB

· Power Supply

· Portmap

· SPI Routing Control

· Debug Interface

· Device Clock

There are a number of sections of the design of the sliceKIT platform that havebeen optimized for flexibility to cover as many use cases as possible. Thereforesome consideration may be required in what to leave out or change in a customdesign. Some of the important points to consider are dealt with in this section.

Some general points to consider when implementing your own design are:

· Always check the datasheet of the xCORE device. In the case where the referencedesign and datasheet conflict, the datasheet presides.

· XMOS datasheets contain additional hardware design requirements and guide-lines that are not covered in this document, which users of XMOS hardwarereference designs must ensure are followed.

· The presence of a third party device in an XMOS hardware reference design doesnot make any statement about its general availability. You must make your ownarrangements to ensure that all components can be sourced in the requiredvolumes.

4.1 USB

The U16 sliceKIT platform has been designed to allow for a number of optionswhen it comes to USB connectivity. In a custom design it is highly unlikely thata high-speed connector will be required, hence the USB slice connector can beremoved and your own connectivity option can be implemented.

For all USB implementations the following points should be considered:

· Keep USB data lines as short as possible

· The USB data differential pair should have a characteristic impedance of 90R

· Common mode chokes, vias, connectors and stubs should be avoided if at allpossible to maximise signal integrity

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· For further information refer to High Speed USB Platform Design Guidelines1

The U16 Core Board USB design is a compromise to allow for maximum flexibilityin use. Therefore it should not be used as a reference for custom designs thatrequire full USB compliance.

4.1.1 USB Device (B)

For a simple device only configuration a USB B connector (standard, mini or microsize) should be connected directly to the USB data lines of the U16 device. If thedevice is to be bus powered an ESD device can be added to clamp the data linesto VBUS and ground and the connection to the U16 VBUS pin can be omitted. Ifthe device is to be self powered then the data lines should only be clamped toground, and the VBUS input should be connected to the U16 VBUS pin to detecthost connection.

4.1.2 USB Host (A)

To implement a host only connection a USB A connector should be directly con-nected to the USB data lines of the U16 device. The VBUS power supply will needto be provided locally. An ESD device can be added to clamp the data lines to VBUSand ground.

4.1.3 Multi Mode USB

For more complex configurations requiring a number of host and/or device con-nections to be available one or more high speed capable USB bus switches can beused, with the routing being controlled using one of the wider ports available onthe U8 device. There are many options for deciding which port to route to (andconsequently which code to boot) from a user input switch to sensing connectionsand deciding priority.

4.2 Power Supply

Depending on the configuration required the local power supply may need to beable to supply VBUS to a device, as well as supporting self and/or bus poweredmodes.

4.2.1 Bus Powered Device

For a purely USB bus powered device the external power supply DC-DC supply andpreferential 5V and over current limit device can be omitted.

Some form of VBUS to 3.3V converter will be required to supply VDDIO, and asecond supply will be required for the on chip ADC if it is to be used.

1http://www.usb.org/developers/docs/hs_usb_pdg_r1_0.pdf

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http://www.usb.org/developers/docs/hs_usb_pdg_r1_0.pdf


4.2.2 Self Powered Device

For a purely self powered device the preferential 5V and over current device canbe omitted. Some sort of external power supply will be required to generate railssuitable for the U16 VSUP supply (5V or 3.3V), the U16 VDDIO supply (3.3V) froman external supply.

A second 3.3V supply will be required for the on chip ADC if it is to be used.

If a lower power suspend mode is required a power supply with an enable function,or some sort of high side switch circuit may be necessary.

4.2.3 Bus or Self Powered Device

For systems designed to operate either bus or self powered some sort of externalpower supply will be required to generate 5V for the U16 VSUP supply when thesystem is self powered.

The preferential 5V device (or similar supply selection device) will be required. Notethat a simple diode OR, using Schottky diodes is not suitable as the reverse currentleakage leads to the voltage on the VBUS sense pin rising above the thresholdleading to inaccurate detection of the presence of a host, which in turn can lead toissues enumerating on the USB.

Some form of VBUS to 3.3V converter will be required to supply VDDIO, and asecond supply will be required for the on chip ADC if it is to be used.

If a lower power suspend mode is required a power supply with an enable function,or some sort of high side switch circuit will be necessary.

4.2.4 Self Powered Host

For a self powered host the preferential 5V device can be omitted, but the restof the power supply sections need to be present in some form. An over-currentswitch should be added and set accordingly to comply with the USB specification.

The design of the external power supply should be customized to your ownrequirements, however a 5.5V over-voltage trip circuit should be implemented toprotect the device on the USB, and remain within the USB specification.

The external power supply will be required to generate rails suitable for the U16VSUP supply (5V or 3.3V), the U16 VDDIO supply (3.3V).

A second 3.3V supply will be required for the on chip ADC if it is to be used.

4.3 Portmap

Due to the flexibility of the I/O on an xCORE device the location of the signalsrouted to the U16 can be easily optimized for your own layout.

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As a general rule any 1-bit port pin can be easily swapped with any other. The onlyfixed 1-bit port pins are those connected to the SPI bus of the code flash device.

The location of signals on the 4-bit ports can be swapped with other signals onthe same port, and the ports as a whole can be swapped, however care should betaken to ensure that all signals on the same port should be in the same directioni.e. all outputs or all inputs.

The 32-bit port on the MFA board is used as an output port, hence all signals onthis port are output only.

4.4 SPI Routing Control

In order to maximize the functionality of the MFA platform all of the 1-bit portsused by the boot flash can also used by the system after boot. In order to allow forthis the SPI 1-bit ports are latched to either the flash device or to the I/O.

If your design does not make use of all of the 1-bit ports then the slave select lineshould be left to only control the SPI interface and the rest of the SPI 1-bit portscan be reused.

4.5 Debug Interface

During the development phase of a new design it is highly recommended thatthe full XSYS debug interface, including the xSCOPE xCONNECT link, should beincluded. This allows for full programming and debug interfaces.

Once the design is stable the xSCOPE xCONNECT link can be omitted, and if spaceis a concern the main JTAG signals can be bought out to a custom header, or testpoints.

For high volume builds it is possible to omit the debug interface altogether, howeverthis will require another method of programming the flash e.g. preprogrammedbefore placement.

For single device designs most of the switching and buffering devices for the JTAGchain can be omitted.

4.6 Device Clock

It should be noted that if an external clock signal is used the maximum signal levelshould be 1.8V. The output from the 1.8V DCDC regulator on the device can beused to provide an appropriate supply (VDD1V8 pins).

This does not apply if a crystal is used to provide a clock to the device as the clocksignal is generated internally from the 1.8V supply.

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5 Errata

IN THIS CHAPTER

· 1V2 Hardware SPI Bus Switch

5.1 1V2 Hardware SPI Bus Switch

On revision 1V2 hardware the SPI bus switch enable/disable line is connected toX0D16 (rather than X0D14 as stated above). This signal is shared with the xSCOPExCONNECT link which means that xSCOPE can not be used if control of the SPI busis required.

Copyright © 2014, All Rights Reserved.

Xmos Ltd. is the owner or licensee of this design, code, or Information (collectively, the “Information”) andis providing it to you “AS IS” with no warranty of any kind, express or implied and shall have no liability inrelation to its use. Xmos Ltd. makes no representation that the Information, or any particular implementationthereof, is or will be free from any claims of infringement and again, shall have no liability in relation to anysuch claims.

XMOS and the XMOS logo are registered trademarks of Xmos Ltd. in the United Kingdom and other countries,and may not be used without written permission. All other trademarks are property of their respective owners.Where those designations appear in this book, and XMOS was aware of a trademark claim, the designationshave been printed with initial capital letters or in all capitals.

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OverviewIntroductionsliceKIT System Layout

Core BoardMultiple Core BoardsSetupPower SupplyDebugU16 BootXMOS LinksResetClockingTestpointsLoop-back PortDiamond/Alt Diamond SlotSlot PinoutsUSBMIXED SIGNALSQUAREDIAMONDALT DIAMONDSystem Services Slot Signals

USB sliceCARDsU16 USB Slice PinoutUSB AB Slice

New Designs Based on sliceKITUSBUSB Device (B)USB Host (A)Multi Mode USB

Power SupplyBus Powered DeviceSelf Powered DeviceBus or Self Powered DeviceSelf Powered Host

PortmapSPI Routing ControlDebug InterfaceDevice Clock

Errata1V2 Hardware SPI Bus Switch

u16 slicekit core board hardware manual · 2014. 7. 22. · u16 slicekit core board hardware manual...

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