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Team W3:Anthony Marchetta
Derek RitcheaDavid Roderick
Adam StolerMilestone 7:
March 1stComponent Layout
(Corrected)
Overall Project Objective:Design an Air-Fuel Ratio Controller for a small
gasoline engine with low emissions and low cost
Design Manager:Steven Beigelmacher
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Logos are cool!!
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Status• Design Proposal (done)• Architecture (done)
• High Level C Simulation• Behavioral Verilog & Test Bench• Floorplan & Structural Verilog
• Gate Level Design (done)• Top Level Schematic Verification
• Component Layout (done)• Analog simulation of SRAM and ROM• Layout of all components
• Component Simulation (90%)• Smaller Multiplier being laid out• Everything else complete
• Still to be done• Top level layout• Top level simulation
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12bitInputReg
8X10 SRAMValue
Look-up
12bitInputReg
Engine Speed
ManifoldPressure
12bitInputReg
ThrottlePosition
Fixed PointArray Multiplier
2:1Mux
12bit Output Register
ControlROM
12bitInputReg
%Oxygen
7X4 SRAM
ComparatorLook-up
4:1
Mu
x
= < > R0
12bit Register12bit Register
Win
Win
Win
Win
Sin
[0:1
]
2:1Mux
Rcomp
Sin[0:1]
Index[0:4]Write
R1
R2R
owC
omp[0]
Row
Com
p[1]
Srow1 Srow2
RowComp[2]
3bit RegWcol
Index[0:6]
Write
Rtable
2:1Mux
Scol
ColT
able[0:3]
2:1Mux
Scol
Valid
Wmult1
Wmult2
Smult
5bit State Reg
Next[0:4]
Wout
PulseOut[0:11]
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DFF
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DFF
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Comparator
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Comparator
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4:1 Mux
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4:1 Mux
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Top Level Layout (old) 390X430(µm)
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Top Level Layout (old)
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Top Level Layout (possibility) 385X340(µm)
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Top Level Layout (possibility)
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New Layout
340 x 385 (µm)
130,900 (µm2 )
Aspect Ratio:
1.13
Trans. Density:
.124 Tran/ µm2
Old Layout
390 x 430 (µm)
167,700 (µm2 )
Aspect Ratio:
1.10
Trans. Density:
.09 Tran/ µm2
Vs.
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Questions????