1. Switching & Logic Laboratory
Truth Tables & PLACE
Switching & Logic Laboratory

2. Overview
Interface
Truth Tables
JED file

3. Pre Laboratory 1 Get out K-maps and equation
Show K-maps and equations to laboratory assistant.
If process not complete, leave laboratory at end of slides and complete at table in hall for 10 point penalty
Else continue with task 1.

4. PEEL Interface System + 5 V D0 D1 D2 D3 DP SegG SegF SegE SegD SegC
7-Segment Display
On Daughter Board
+ 5 V D0 D1 D2 D3 DP
SegG
SegF
SegE
SegD
SegC
SegB
SegA V0 V1 V2 V3
Vector 1.0
PEEL On
Daughter
Board
Clock
“0”
“1”
myPEEL

5. Option 1 0 = on and 1 = off Input Output 0000 11111100 0001 01100000
. . .
1 = on and 0 = off

6. Option 2 0 = on and 1 = off Input Output 0000 00000011 0001 10011111
. . .
0 = on and 1 = off

7. Enter Truth Table Data TRUTH_TABLE FUNCTIONS
( I1 I0 -> O3 O2 O1 O0)
>
>
>
>
END;

8. Seven Segment Display CodesB C F E

9. Demonstrate WinPLACE and
Truth Tables here.

10. Sequence Select 18CV8 device Title, Name, Date, and Description
Label pins
Allocate truth table header
Enter table data
Compiler truth table
Simulate, check results, append vectors
Program PEEL and verify design by exercising

11. Task 2 RED file contains reduced eaquation version of PSF file
Equations SEGA.COM = !D0 & !D2 # D0 & !D1 & D3 # !D1 & !D2 & D3 # D1 & !D3 # D0 & D2 & !D3;

12. PEEL Column & Row Layout
Column 0 to Column 35
Row 0 to
Row7
Column 12, Row 4
PEELs used column and row notation for each fuse.
Note fuse at each intersection.

13. Linear Array Layout of JED File
L0035
L0000 1 2 3 4 5 6 7
L0036 = 1*36+0
L0071 = 1*36+35
L0287 = 7*36+35 = 287

14. Col-Row to/from Linear Array
Column & Row to Linear Array
L = Row*36 + Column
L = 17* = L0633
Linear Array to Coumn & Row
Row = L/36
Column = L%36
Row = 633/36 = = 17
Colum = 633%36 = *36 = 21

15. Pin 17 Linear Address Range 19 18 17 16 5 4 1 3 2 20 21 22 23
CLK D0 D1 D2 D3
SEGF
16*36+0 =
L0576
23*36+35 =
L0863

16. File format - Task 3
Comment
Pins
Fuses
Default
Note
Location & Logic

17. File format - Task 3 1 = Blown 0 = Not Blown Pn Pn’ Result 1 1 1
N Output Pin 19*
p1 p11 p2 p19 p3 p18 p4 p17 p5 p16 p6 p15 p7 p14 p8 p13 p9p12
Pn Pn’ Result
Pn’ Pn
= PnPn’
1 = Blown
0 = Not Blown
p19 = !p2•p3•p4•p5 or
DP = !D0•D1•D2•D3

18. Big Picture -- Task 4 Task 1 Task 4 0 0 0 0 1 1 1 1 1 1 0 0
SEGF = !D0 & !D1 & D2 & D3 # D0 & D1 & !D2 & D3 # !D0 & D1 & !D2 & D3 #
D0 & !D1 & !D2 & D3 # !D0 & !D1 & !D2 & D3 # !D0 & D1 & D2 & !D3 #
D0 & !D1 & D2 & !D3 # !D0 & !D1 & D2 & !D3 # !D0 & !D1 & !D2 & !D3;
SEGG = D0 & !D1 & D2 & D3 # D0 & D1 & !D2 & D3 # !D0 & D1 & !D2 & D3 #
D0 & !D1 & D2 & !D3 # !D0 & !D1 & D2 & !D3 # D0 & D1 & !D2 & !D3 #
!D0 & D1 & !D2 & !D3;
DP = !D0 & D1 & D2 & D3;
SEGA= !D0 & !D1 & D2 & D3 # !D0 & D1 & !D2 & D3 # D0 & !D1 & !D2 & D3 #
!D0 & !D1 & !D2 & D3 # D0 & D1 & D2 & !D3 # !D0 & D1 & D2 & !D3 #
D0 & !D1 & D2 & !D3 # D0 & D1 & !D2 & !D3 # !D0 & D1 & !D2 & !D3 #
!D0 & !D1 & !D2 & !D3;
Task 4

19. Big Picture Continued .PSF Task 1 .RED .JED .PSF Task 4 BP-1400
TRUTH_TABLE SEVSEG
D3 D2 D1 D0 SEGA SEGB SEGC SEGD SEGE SEGF DP
• • • • •
SEGA = !D0&D1&D2&D3#
• • • • •
L …11*
.PSF
Task 4
SEGA = !D0*D1*D2*D3+
• • • • •
BP-1400