# Hw8_Solution - F = A’ C D A’ B C’ A C’ D’ A B’...

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COCO F09 SOLUTION HW #08 1/5 ECSE-2610 Computer Components and Operations Homework # 8: SSI design Due Wednesday, October 29, in studio I1’I4’+I2’I3+I4+I2I3 I1’I4’+I1’I3’+I2I3 I2’I3+I4

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COCO F09 SOLUTION HW #08 2/5 IO5 = (IO4 I6 + IO4’I6’)’ = IO4 I6 IO6 = (I5 I6 + I5’I6’)’ = I5 I6 3. (5 points) Implement F = X’•Y•Z +X•Z +Y•Z with a 4-input 1-bit multiplexer. 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 1 1 0 0 0 1 0 1 1 1 1 0 0 1 1 1 1 0 D0 Z D1 MUX Z D2 Z D3 S1 S0
COCO F09 SOLUTION HW #08 3/5 For X,Y selectors: 0, Z, Z, Z Now solve the problem with selector inputs X, Z instead of X, Y. For X,Z selectors: 0, Y, 0, 1 , 0 D0 Y D1 0 D2 MUX F 1 D3 S1 S0 X Z 4. (5 points) Implement the following functions using a PAL. On the schematic diagram on page 4, draw circles to indicate unblown f uses. Please do it neatly: if you make mistakes, print another copy of the PAL instead of crossing out marks (or use the computer to make the marks and then print it out).

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Unformatted text preview: F = A’ C D + A’ B C’ + A C’ D’ + A B’ D; G = A’ B’ + A B’ + C’ D’ + C D’ Use only the following pin assignments: Pin 18 A Pin 17 B Pin 16 C Pin 15 D Pin 14 F Pin 13 G Pin 11 is set to HIGH: use it to control which pins are I or O. (was Pin 10 in HW posted earlier– my mistake) Diagram on p. 4. F = (A’ B’ C’ + A B D + C D’ )’ G = ( B D ) ‘ (From K-map) X Z Y F 0 0 0 0 0 1 0 1 0 1 0 0 0 1 1 1 2 1 0 0 0 1 0 1 0 3 1 1 0 1 1 1 1 1 COCO F09 SOLUTION HW #08 4/5 5. (5 points) 6. (3 points) The inputs for the circuit on Wakerly p. 391 are: EN1=H, EN2_l=L, EN3_L=L, EN4=H, N = 10011 = 19 . What is the output DEC31L:DEC0_L expressed as an 8-digit hex number? What are the signals EN0X7_L, EN8X15_L, EN16_X23L, EN24X31_L expressed as a single hex digit? DEC31L:DEC0_L = FFF7FFFF EN24X31_L = 1, EN16_X23L = , EN8X15_L = 1 , EN0X7_L = 1 , = 11 hex COCO F09 SOLUTION HW #08 5/5...
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Hw8_Solution - F = A’ C D A’ B C’ A C’ D’ A B’...

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