GPS Waypoint Navigation

1
GPS Waypoint Navigation

• Team M-2
• Charles Norman (M2-1)
• Julio Segundo (M2-2)
• Nan Li (M2-3)
• Shanshan Ma (M2-4)
• Design Manager Zack Menegakis

Presentation 10 Top-Level Layout April 17, 2006
Overall Project Objective Design a low-power
chip that navigates an aircraft to pre-determined
waypoints.
2
Status

• Design Proposal
• Architecture Proposal
• Size Estimates / Floorplan
• Schematic Design
• Layout
• Spice Simulations
• Power
• Logic Modules
• Registers
• Delay
• Logic Modules
• Registers
• Global
• Waypoint/Heading
• Everything Else

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Power Analysis
Functional Component AVG Case (Schematic) AVG Case (Ext. RC) WC Power (Schematic) WC Power (Ext. RC)
SRAM 352.7nW 40.7nW 52.0uW 20.4uW
FSM 2.3nW 1.9nW 30.4nW 31.6nW
Registers/Buffers Clock / Counter Logic Done Logic 1.5uW - - - - - - - - - - -
Speed Comparator Altitude Comparator Waypoint Comparator Heading 0.8nW 1.3nW 16.8nW 10.7nW 0.8nW 1.3nW 17.5nW 10.7nW 0.8nW 1.7nW 58.1nW 11.7nW 0.8nW 1.7nW 61.9nW 11.7nW
Distance Calculator Speed Calculator Angle Calculator 10.4nW 5.5nW 4.3nW 10.4nW 6.0nW 4.3nW 11.3nW 5.8nW 4.5nW 11.4nW 6.0nW 4.5nW
Total 1.9uW - - -
Estimated Value
4
Power Consumption
SRAM 352.7nW
Logic 52.1nW
Registers 1.5uW
5
AVG Delay Analysis
Functional Component Schematic Propagation Rise Fall Extr. RC Propagation Rise Fall
SRAM 1.03ns 105.9ps 59.1ps 1.3ns 445.8ps 125.4ps
FSM 185.4ps 310.2ps 274.1ps 214.9ps 276.0ps 119.0ps
Registers/Buffers Clock 8Hz Clock 240Hz Clock 2048Hz Black Box Done Output Done - 1.2ns 326.3ps 1.8ns 740.6ps 487.4ps - 1.8ns 251.9ps 3.7ns 654.3ps 157.6ps - 1.1ns 61.1ps 585.7ps - - - 1.4ns 369.4ps 1.9ns 1.0ns 557.9ps - 1.9ns 238.9ps 3.7ns 972.7ps 266.5ps - 1.1ns 55.1ps 587.1ps - -
Speed Comparator Altitude Comparator Waypoint Comparator Heading 246.6ps 1.3ns 523.4ps 311.2ps 62.2ps 87.9ps 77.3ps 63.0ps 52.8ps 73.9ps 62.1ps 52.9ps 652.2ps 1.4ns 593.2ps 311.5ps 63.4ps 90.2ps 90.2ps 74.4ps 53.3ps 75.6ps 68.7ps 62.6ps
Distance Calculator Speed Calculator Angle Calculator 2.2ns 1.59ns 371.4ps 64.5ps 64.4ps 331.3ps 53.4ps 51.8ps 173.7ps 2.4ns 1.9ns 411.4ps 68.8ps 66.3ps 721.6ps 55.3ps 55.3ps 239.5ps
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Worst Case Delay Analysis
Functional Component Schematic Propagation Rise Fall Layout Propagation Rise Fall
SRAM 1.2ns 816.6ps 289.3ps 4.4ns 612.5ps 138.4ps
FSM 187.6ps 294.4ps 276.5ps 215.7ps 122.8ps 280.5ps
Speed Comparator Altitude Comparator Waypoint Comparator Heading 652.2ps 1.5ns 524.0ps 2.6ns 63.4ps 96.7ps 79.4ps 64.3ps 53.3ps 74.8ps 61.5ps 54.4ps 714.1ps 1.7ns 593.7ps 2.8ns 71.9ps 97.3ps 94.6ps 67.5ps 56.8ps 73.9ps 68.7ps 56.7ps
Distance Calculator Speed Calculator Angle Calculator 2.6ns 1.4ns 1.7ns 63.5ps 62.9ps 356.4ps 52.7ps 54.7ps 192.6ps 3.1ns 1.5ns 1.9ns 63.2ps 66.8ps 468.1ps 51.3ps 55.4ps 237.3ps
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Done
Output regs
Done BB
8Hz
Alt comp
BB Input regs
Distance Calculator
240Hz
Angle comp
FSM
Speed Calculator
Spd comp
2048Hz
SRAM
Heading regs
Input regs
BB Output regs
Waypoint comparator
Heading
Dimensions 322um 416um Area 134,000 um2
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Size Estimate
Functional Component Transistor Count Density Estimation (µm²) Actual (µm²)
SRAM 4,269 0.23 17,000 18,315
FSM 352 0.22 2,000 1,589
Registers/Buffers Clock Logic Done Logic 6,750 916 466 0.18 0.22 0.22 28,500 10,500 3,500 36,824 4,166 2,096
Speed Comparator Altitude Comparator Waypoint Comparator Heading 256 412 3,750 3,456 0.24 0.24 0.25 0.24 900 1,900 16,000 15,500 1,084 1,744 15,184 14,266
Distance Calculator Speed Calculator Angle Calculator 3,428 1,662 1,246 0.23 0.26 0.24 15,500 7,000 6,500 14,822 6,507 5,123
Total 26,963 - 124,800 120,131
No Interconnect
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Whats Next

• Heres whats on our agenda for next week
• Finish Global
• LVS

10
Questions???