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EVPC2 Enhanced Video Processor Card Rev. 2.0 system 99 user group (snug) English hardware manual Installing and connecting Jumper settings Schematics and Layout

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Page 1: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

English hardware m • Installing and conne• Jumper settings • Schematics and Lay

EVPC2 Enhanced Video Processor Card Rev. 2.0 system 99 user group (snug)

anual

cting

out

Page 2: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Date: 31. Januar 2005

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Page 3: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Table of contents History ................................................................................................................................5

New Features .....................................................................................................................5

Configuration .....................................................................................................................5 Jumper-Settings DSR-Socket................................................................................................................................... 6

Jumper-Settings VDP-Socket .................................................................................................................................. 7

Jumper-Settings Video-Palette-Socket.................................................................................................................... 8

Jumper-settings for Sound-chip-Socket................................................................................................................. 9

Jumper-settings for Interrupt-Line....................................................................................................................... 10

DIP-Switches ........................................................................................................................................................... 11

Appendix A.......................................................................................................................12 CRU-Adresses CRU-output .................................................................................................................................. 12

CRU-Adresses CRU-input ..................................................................................................................................... 12

Memory-Mapping................................................................................................................................................... 12

Pagebits for DSR-EPROM..................................................................................................................................... 13

Appendix B.......................................................................................................................15 Printed circuit board (pcb) .................................................................................................................................... 15

Silk Screen:.............................................................................................................................................................. 16

Layer-1..................................................................................................................................................................... 17

Layer-2..................................................................................................................................................................... 18

Drill Template ......................................................................................................................................................... 19

Schematic 1 (root) ................................................................................................................................................... 20

Schematic 2 (Decoder and CRU Output).............................................................................................................. 21

Schematic 3 (Power supply) ................................................................................................................................... 22

Schematic 4 (output-multiplexer) .......................................................................................................................... 23

Schematic 5 (Enhanced Color Palette).................................................................................................................. 24

Schematic 6 (Flashrom/Eprom and NOVRAM) .................................................................................................. 25

Schematic 7 (Bus-Interface) ................................................................................................................................... 26

Schematic 8 (VDP, Video-RAM and Color buss)................................................................................................. 27

Appendix C.......................................................................................................................28 Pin-Assignment connector P2 ................................................................................................................................ 28

How to connect a monitor to P2 .....................................................................................28 Connect analog RGB-Monitors with SCART (EURO-AV)-connector .............................................................. 28

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Page 4: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual Connect analog RGB-Monitors with Sub-Min-D9-connector ............................................................................ 28

Connect analog FBAS-Monitor with RCA (Cinch)-connector ........................................................................... 29

Pin-Assignment for connector P1 (mouse/color buss) ......................................................................................... 29

Appendix D.......................................................................................................................30 Technical Data connector P1 and P2..................................................................................................................... 30

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Page 5: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

History After 10 years, the system 99 user group, (snug) brings users a major revision of the EVPC video card. We fixed hardware bugs and added some new features. We also eliminated unused functions in the new design. This card belongs to the last projects of the snug, it has the blue LED as all “blue-edition” cards have. This card is one of the most complex cards and the layout work needed about 2 years!

New Features The new card will support the good old V9938 as well as the modern V9958 VDP. All the VDP pins are jumpered and can be configured related to the installed VDP-type. The V9958 is very common in the US and offers a higher resolution of the built-in DAC. The V9958 does not have a mouse/light pen interface and does not support composite video-out, but it has a READY hardware circuitry and can handle timing control itself. The color-buss is supported by both types and is used by our expanded video color palette.

The built in interrupt Register of the cards allows the DSR to detect if the VDP was the source or not. This feature now allows the card to use the EXTNIT-line of the P-BOX-buss instead of the VDPINT (LCP) we used for SGCPU (“snug-CPU”). The Video-Interrupt line is not available in console-Port and flex-cable inter-faces, so users of TI-console had to use an external cable for Video-interrupt in the past. Now the card does not need any external cabling for interrupt! For more information please read the DSR documentation.

The socket for the DSR-chip is multi-functional. It also accepts EPROM, RAM or FLASH-EEPROM from 28-32 pin and up to 512K*8bit sizes. The DSRLOADER V3.07 and higher revisions now allow for programming the DSR in-system if FLASH is installed!

Configuration The card must be configured just before you install the card. All hardware related jumpers are set correctly in testing and you should NOT change them unless you replace some chips. The Jumper for V9938 or V9958 selection is set during testing and should not be modified by the end-user unless the type of VDP is chan-ged. Also Jumpers for selection of 6-bit or 8-bit Color-Palette are pre-set during testing according to the chip that is installed. All Jumpers related to the DSR-socket are set to the chip which was installed at time of test-ing. If you install another chip you must modify them as described in the appendix.

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Page 6: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Jumper-Settings DSR-Socket

JU2 JU5 Memory size Type Description

1-2 1-2 32K*8 62256 S-RAM or Battery-RAM

2-3 1-2 64K*8 27C512 EPROM

2-3 2-3 64K*8 29C512 FLASH

2-3 2-3 128K*8 29C010 FLASH

2-3 2-3 256K*8 29C020 FLASH

2-3 2-3 512K*8 29C040 FLASH

Note: Winbond, MOSEL and SST FLASH also possible, see DSR-Loader 3 documentation.

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Page 7: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Jumper-Settings VDP-Socket

(Note: Pre-set during testing!)

JP2 JP3 JU6 VDP-Type function

(open) 1-2 2-3 V9938 Mouse-interface

1-2 (open) 1-2 V9958 READY-circuit

Warning: wrong set Jumper JP2 will blow VDP-chip!!

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Page 8: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Jumper-Settings Video-Palette-Socket

(Note: Pre-set during testing!)

JU1 JP1 Paletten-Chip Description

2-3 1-2 AT76C176 6-bit, power-down-mode enabled

1-2 1-2 AT76C176 6-bit, power-down-mode disabled

1-2 1-2 ADV478 6-bit mode, no power-down mode

1-2 (open) ADV478 8-bit mode, no power-down mode

Warning: wrong set Jumper JP1 will blow Palette chip AT76C176 !!! ADV478 does not support power-down

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Page 9: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Jumper-settings for Sound-chip-Socket

(Note: Pre-set during testing!)

JU4 Sound-Chip Note

1-2 SN76489 SN76494 SN94624

447KHz

2-3 SN76496 3,58MHz

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Page 10: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Jumper-settings for Interrupt-Line

JU3 Bus-Pin Interrupt Note:

1-2 17 EXTINT TI99/4a Console without external cable!

2-3 9 (LCP) VDPINT Normal use for SGCPU

open - No Currently not used

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Page 11: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

DIP-Switches

See DSR-manual for specific information!

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Page 12: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Appendix A

CRU-Adresses CRU-output CRU (R12) MM30 Name Equates Description >1400 >0001 DEN DSRENA DSR Enable >1402 >0002 - >1404 >0004 ENCOL DSRCOB Enable Color Buss, 1 = Enable >1406 >0008 RAMEN NOVENA RAM Enable for NOVRAM, 1 = Enable >1408 >0010 - >140A >0020 - >140C >0040 STORE NOVSTO Store NOVRAM (SBO & SBZ pulsed = save) >140E >0080 MUX MUXPAL VDP / Palette, 0 = VDP, 1 = Palette >1410 >0100 SA2 EPROM paging bit (A13) LSB >1412 >0200 SA1 EPROM paging bit (A14) >1414 >0400 SA0 EPROM paging bit (A15) >1416 >0800 SA16 EPROM paging bit (A16) >1418 >1000 SA17 EPROM paging bit (A17) >141A >2000 SA18 EPROM paging bit (A18) MSB >141C >4000 INTCLR Clear/Disable Interrupt-Register, 1 = Clear & Disable >141E >8000 PGM Program bit, internal use

CRU-Adresses CRU-input CRU (R12) MM30 Name Equates Description >1400 SW11 DIP1 Value of DIP-SW1 >1402 SW12 DIP2 Value of DIP-SW2 >1404 SW13 DIP3 Value of DIP-SW3 >1406 SW14 DIP4 Value of DIP-SW4 >1408 SW15 DIP5 Value of DIP-SW5 >140A SW16 DIP6 Value of DIP-SW6 >140C SW17 DIP7 Value of DIP-SW7 >140E SW18 DIP8 Value of DIP-SW8 >141C INTF Interrupt-Flag, 1 = VDP has caused Interrupt

Memory-Mapping Adress Description >4000 to >5EFF DSR-ROM (8 to 64 times available, depending on size of chip installed) >5F00 to >5FEF NOVRAM if RAMEN is set, otherwise DSR-ROM >5FF0 Palette Read Address Register >5FF2 Palette Read Color Value >5FF4 Palette Read Pixel Mask >5FF6 Palette Read Address Register for Color Value >5FF8 Palette Write Address Register >5FFA Palette Write Color Value >5FFC Palette Write Pixel Mask >5FFE Palette Write Address Register for Color Value >84xx Write Sound Chip (even Adresses only and NOT Read) >88xx Read VDP (even Adresses only and READ) >8Cxx Write VDP (even Adresses only and NOT READ)

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Page 13: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Page bits for DSR-EPROM

The size of the DSR-ROM-chip is reduced by 16 or 256 bytes at the top depending of CRU-Bit >1406 (RAMEN). Bank SA18 SA17 SA16 SA0 SA1 SA2 MM 3.0 Adresse at EPROM Memory size installed0 0 0 0 0 0 0 >0001 >00000 to >01FFF All 1 0 0 0 0 0 1 >0101 >02000 to >03FFF 2 0 0 0 0 1 0 >0201 >04000 to >05FFF 3 0 0 0 0 1 1 >0301 >06000 to >07FFF End 32K*8 4 0 0 0 1 0 0 >0401 >08000 to >09FFF 5 0 0 0 1 0 1 >0501 >0A000 to >0BFEF 6 0 0 0 1 1 0 >0601 >0C000 to >0DFEF 7 0 0 0 1 1 1 >0701 >0E000 to >0FFEF End 64K*8 8 0 0 1 0 0 0 >0801 >10000 to >11FFF 9 0 0 1 0 0 1 >0901 >12000 to >13FFF 10 0 0 1 0 1 0 >0A01 >14000 to >15FFF 11 0 0 1 0 1 1 >0B01 >16000 to >17FFF 12 0 0 1 1 0 0 >0C01 >18000 to >19FFF 13 0 0 1 1 0 1 >0D01 >1A000 to >1BFEF 14 0 0 1 1 1 0 >0E01 >1C000 to >1DFEF 15 0 0 1 1 1 1 >0F01 >1E000 to >1FFEF End 128K*8 16 0 1 0 0 0 0 >1001 >20000 to >21FFF 17 0 1 0 0 0 1 >1101 >22000 to >23FFF 18 0 1 0 0 1 0 >1201 >24000 to >25FFF 19 0 1 0 0 1 1 >1301 >26000 to >27FFF 20 0 1 0 1 0 0 >1401 >28000 to >29FFF 21 0 1 0 1 0 1 >1501 >2A000 to >2BFEF 22 0 1 0 1 1 0 >1601 >2C000 to >2DFEF 23 0 1 0 1 1 1 >1701 >2E000 to >2FFEF 24 0 1 1 0 0 0 >1801 >30000 to >31FFF 25 0 1 1 0 0 1 >1901 >32000 to >33FFF 26 0 1 1 0 1 0 >1A01 >34000 to >35FFF 27 0 1 1 0 1 1 >1B01 >36000 to >37FFF 28 0 1 1 1 0 0 >1C01 >38000 to >39FFF 29 0 1 1 1 0 1 >1D01 >3A000 to >3BFEF 30 0 1 1 1 1 0 >1E01 >3C000 to >3DFEF 31 0 1 1 1 1 1 >1F01 >3E000 to >3FFEF End 256K*8

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Page 14: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual Page bits for DSR-EPROM (cont.) Bank SA18 SA17 SA16 SA0 SA1 SA2 MM 3.0 Adresse at EPROM Memory size installed32 1 0 0 0 0 0 >2001 >40000 to >41FFF 512K*8 chip only 33 1 0 0 0 0 1 >2101 >42000 to >43FFF 34 1 0 0 0 1 0 >2201 >44000 to >45FFF 35 1 0 0 0 1 1 >2301 >46000 to >47FFF 36 1 0 0 1 0 0 >2401 >48000 to >49FFF 37 1 0 0 1 0 1 >2501 >4A000 to >4BFEF 38 1 0 0 1 1 0 >2601 >4C000 to >4DFEF 39 1 0 0 1 1 1 >2701 >4E000 to >4FFEF 40 1 0 1 0 0 0 >2801 >50000 to >51FFF 41 1 0 1 0 0 1 >2901 >52000 to >53FFF 42 1 0 1 0 1 0 >2A01 >54000 to >55FFF 43 1 0 1 0 1 1 >2B01 >56000 to >57FFF 44 1 0 1 1 0 0 >2C01 >58000 to >59FFF 45 1 0 1 1 0 1 >2D01 >5A000 to >5BFEF 46 1 0 1 1 1 0 >2E01 >5C000 to >5DFEF 47 1 0 1 1 1 1 >2F01 >5E000 to >5FFEF 48 1 1 0 0 0 0 >3001 >60000 to >61FFF 49 1 1 0 0 0 1 >3101 >62000 to >63FFF 50 1 1 0 0 1 0 >3201 >64000 to >65FFF 51 1 1 0 0 1 1 >3301 >66000 to >67FFF 52 1 1 0 1 0 0 >3401 >68000 to >69FFF 53 1 1 0 1 0 1 >3501 >6A000 to >6BFEF 54 1 1 0 1 1 0 >3601 >6C000 to >6DFEF 55 1 1 0 1 1 1 >3701 >6E000 to >6FFEF 56 1 1 1 0 0 0 >3801 >70000 to >71FFF 57 1 1 1 0 0 1 >3901 >72000 to >73FFF 58 1 1 1 0 1 0 >3A01 >74000 to >75FFF 59 1 1 1 0 1 1 >3B01 >76000 to >77FFF 60 1 1 1 1 0 0 >3C01 >78000 to >79FFF 61 1 1 1 1 0 1 >3D01 >7A000 to >7BFEF 62 1 1 1 1 1 0 >3E01 >7C000 to >7DFEF 63 1 1 1 1 1 1 >3F01 >7E000 to >7FFEF End 512K*8

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Page 15: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Appendix B

Printed circuit board (pcb)

Silk screen on bareboard:

yellow (yellow) = Jumper and Switches

Light green (light green) = Video-Palette-Chip

Light brown (light brown) = Sound-Chip

Light blue (light blue) = Video-Display-Processor (VDP)

Dark green (dark green) = DSR-memory

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Page 16: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Silk Screen:

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Page 17: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual Layer-1

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Page 18: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Layer-2

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Page 19: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Drill Template

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Page 20: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Schematic 1 (root)

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Page 21: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Schematic 2 (Decoder and CRU Output)

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Page 22: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Schematic 3 (Power supply)

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Page 23: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Schematic 4 (output-multiplexer)

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Page 24: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Schematic 5 (Enhanced Color Palette)

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Page 25: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Schematic 6 (Flashrom/Eprom and NOVRAM)

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Page 26: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Schematic 7 (Buss-Interface)

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Page 27: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Schematic 8 (VDP, Video-RAM and Color buss)

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Page 28: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Appendix C

Pin-Assignment connector P2 Pin Name Description 1 GND Ground or Shield for sound 2 GND Ground or Shield for video 3 Red Analog RGB, red 4 Green Analog RGB, green 5 Blue Analog RGB, blue 6 Sound Sound output, analog 7 VCC +5 Volts 8 Sync Analog RGB, composite sync-signal 9 Mux Multiplexing for Pin 8, open or GND = Sync, +5V = FBAS

How to connect a monitor to P2 The Output on connector P2 can support either analog monitors with RGB inputs or monitors with FBAS (also called “composite-video”) input. See some examples below to connect a few common monitor types to your card (Phillips CM8802, CM8833 or 1084).

Connect an analog RGB-Monitors with SCART (EURO-AV)-connector Pin Name Description SCART-Pin 1 GND Shield 21 2 GND Ground 4,5,9,13,18 3 Red Analog RGB, red 15 4 Green Analog RGB, green 11 5 Blue Analog RGB, blue 7 6 Sound Sound, analog 6, using 2-channel (CM8833 / 1084S) also SCART-27 - Not used, do not connect! 8 Sync Analog RGB, composite sync-signal 16 9 - Not used, do not connect!

Connect an analog RGB-Monitors with Sub-Min-D9-connector Pin Name Description Monitor-Pin 1 GND Shield 1 2 GND Ground 2 3 Red Analog RGB, red 3 4 Green Analog RGB, green 4 5 Blue Analog RGB, blue 5 6 Sound Sound, analog Note: Must be wired externally. 7 VCC +5V Note: Monitor-Pin 6, if switching voltage needed.8 Sync Analog RGB, composite sync-signal 7 9 - Not used, do not connect!

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Page 29: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Connect an analog FBAS-Monitor with RCA (Cinch)-connector Pin Name Description RCA 1 GND Ground/Shield Shield FBAS-Jack (yellow)2 GND Ground/Shield Shield Sound-Jack (white)3 - Not used, do not connect! 4 - Not used, do not connect! 5 - Not used, do not connect! 6 Sound Sound, analog „hot“ sound-Jack (white) 7 VCC use resistor of 100-1000 Ohms … connect to Pin 9 of P2 8 Sync Analog RGB, composite-Video „hot“ FBAS-Jack (yellow) 9 Mux …as jumper wire! connect to Pin 7 vof P2

Note: modify DIP-switch on bare-board as described in DSR-manual !!! Available on V9938-cards only, V9958-cards do have RGB-output only!

Pin-Assignment connector P1 (mouse/color-buss) Pin Name Description for V9938 for V99581 C7 Color buss 2 C6 3 C5 4 C4 5 C3 6 C2 7 C1 8 C0 9 INT Interrupt-output 10 LPS/RDY LPS RDY 11 LPD/HRES LPD - 12 GND GND 13 SYCLK 447KHz output 14 GND GND 15 VCC +5V

Note: V9958 will not support mouse/light-pen-interface (see Pin 10&11), color-buss only!!

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Page 30: EVPC2 Hardware Anleitung - snugEVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual History After 10 years, the system 99 user group, (snug) brings users a major

EVPC2 - Enhanced Video Processor Card Rev.2 – English hardware manual

Appendix D

Technical Data connector P1 and P2

Analog RGB-Signals: 0,7Vpp/75Ω CVBS/FBAS (V9938 only): 1V +/- 0,5V/75Ω Video system: PAL/NTSC selected by software . Line-frequency : 15625 Hz fixed ! Monitor must support this! For detailed information see technical Datasheet Yamaha V9938 or V9958! Sound: ca. 200mV/10KΩ Digital Levels on P1: TTL-Input, HC-MOS output.

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