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GPS Waypoint NavigationGPS Waypoint NavigationTeam M-2:Team M-2:

Charles Norman (M2-1)Charles Norman (M2-1)Julio Segundo (M2-2)Julio Segundo (M2-2)

Nan Li (M2-3)Nan Li (M2-3)Shanshan Ma (M2-4)Shanshan Ma (M2-4)

Design ManagerDesign Manager: Zack Menegakis : Zack Menegakis

Presentation 9: Functional Block Simulation IIApril 3, 2006

Overall Project Objective:Design a low-power chip that navigates an aircraft to pre-determined waypoints.

22

StatusStatus Design ProposalDesign Proposal Architecture ProposalArchitecture Proposal Size Estimates / FloorplanSize Estimates / Floorplan Schematic DesignSchematic Design

Cell AnalysisCell Analysis Power Estimates at Targeted Clock SpeedsPower Estimates at Targeted Clock Speeds Top-level simulatedTop-level simulated Critical Path EstimatesCritical Path Estimates SRAMSRAM

LayoutLayout Basic GatesBasic Gates RegistersRegisters AddersAdders Major Functional Blocks (80% done)Major Functional Blocks (80% done) Global WiringGlobal Wiring

SimulationsSimulations Major Functional Blocks (50% done)Major Functional Blocks (50% done)

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Design DecisionsDesign Decisions Still working on improving SRAMStill working on improving SRAM When laying out major functional modules, When laying out major functional modules,

run the expected number of global wires run the expected number of global wires acrossacross

44

FloorplanFloorplanIn

pu

ts

Bla

ckb

ox

Outputs

55

Speed CalculatorSpeed Calculator

66

Speed Calculator (Zoom In)Speed Calculator (Zoom In)

77

Speed Calculator Simulation - SchematicSpeed Calculator Simulation - Schematic

88

Speed Calculator Simulation – Extracted RCSpeed Calculator Simulation – Extracted RC

99

Our HeadingOur Heading

1010

Our Heading (Zoom In)Our Heading (Zoom In)

1111

Our Heading w/ Global WiringOur Heading w/ Global Wiring

1212

Our Heading Simulation - SchematicOur Heading Simulation - Schematic

1313

Our Heading Simulation – Extracted RCOur Heading Simulation – Extracted RC

1414

Cell AnalysisCell Analysis

Functional Functional ComponentComponent

Recent Recent CountCount

EstimatedEstimatedArea Area (µm²)(µm²)

Actual Actual Area Area (µm²)(µm²)

Power Power (Schematic)(Schematic)

Power Power (Extracted(Extracted

))

FSMFSM 272272 2,0002,000 -- 1.02nW1.02nW --

SRAMSRAM 3,9883,988 14,19014,190 -- 36.6 mW36.6 mW --

Registers/BuffersRegisters/Buffers

Clock / Counter LogicClock / Counter Logic

Done LogicDone Logic

7,2067,206

916916

466466

34,30934,309

4,9804,980

2,0802,080

--

4,1634,163

2,0432,043

9.8uW9.8uW

--

--

--

--

--

Speed Comparator Speed Comparator

Altitude ComparatorAltitude Comparator

Waypoint ComparatorWaypoint Comparator

HeadingHeading

256256

412412

3,6963,696

3,4563,456

1,0451,045

1,6531,653

14,76014,760

14,26814,268

1,0331,033

1,6421,642

--

13,98713,987

892pW892pW

1.42nW1.42nW

225.4uW225.4uW

12.59nW12.59nW

**

**

--

**

Distance CalculatorDistance Calculator

Speed CalculatorSpeed Calculator

Angle CalculatorAngle Calculator

3,4283,428

1,6621,662

1,2461,246

15,69615,696

6,1826,182

5,0405,040

14,52814,528

6,3376,337

4,9684,968

11.12nW11.12nW

5.82nW5.82nW

4.71nW4.71nW

**

**

**

TotalTotal 27,00427,004 116,203116,203 -- a lota lot --

Complete (DRC & LVS)Complete (DRC & LVS)

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What’s Next…What’s Next…

Here’s what’s on our agenda for next week…Here’s what’s on our agenda for next week… SRAMSRAM Finish layout for major functional blockFinish layout for major functional block Simulation of remaining functional blocksSimulation of remaining functional blocks Global wiringGlobal wiring

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Questions???Questions???