Tandy Championship Football 60-2151

Chip labeled 
TMS1100NLL
MP1183
MSL 8022
PHILIPPINES

7 buttons
1 switch
7 7-segment LEDs
30 LEDs
piezo

TMS1100 pinout
1  R8   - transistor to enable LED matrix
2  R9   - transistor to enable digits
3  R10  - Piezo
4  VDD  - battery - via switch
5  K1   - inputs
6  K2   - inputs
7  K4   - inputs
8  K8   - inputs
9  INIT - VDD
10 O7   - digit 4 DP and LED matrix
11 O6   - segment G  and LED matrix
12 O5   - segment F  and LED matrix
13 O4   - segment E  and LED matrix
14 O3   - segment D  and LED matrix
15 O2   - segment C  and LED matrix
16 O1   - segment B  and LED matrix
17 O0   - segment A  and LED matrix
18 OSC1 - 50pF disc cap to VSS, 47K resistor to VDD
19 OSC2 - OSC1
20 VSS  - battery +
21 R0   - digit 1 (right) and LED matrix
22 R1   - digit 2 and LED matrix
23 R2   - digit 3 and LED matrix
24 R3   - digit 4 and LED matrix
25 R4   - digit 5
26 R5   - inputs and digit 6
27 R6   - inputs and digit 7 (left)
28 R7   - inputs


Input Matrix
         K1          K2          K4          K8
      -------     -------     -------     -------
R5     Right        Left        Down         Up
R6       --       Display       Pass        Kick
R7       --          --          --         Pro


7-segment LEDs
R6 R5    R4 R3 R2    R1 R0
#  #     #  #. #     #  #
 

LED Layout
    O7  O6  O5  O4  O3  O2  O1  O0  R3  R3
R2  o   o   o   o   o   o   o   o   *   *
R1  o   o   o   o   o   o   o   o   *   *
R0  o   o   o   o   o   o   o   o   *   *

* these 6 LEDs are connected differently:
R3+O0 for bottom left, R3+O1 for middle left, R3+O2 for top left
R3+O3 for bottom right, R3+O4 for middle right, R3+O5 for top right


Output O PLA
3F 06 5B 4F 66 6D 7D 07 7F 6F 00 46 70 00 00 00 01 02 04 08 10 20 40 80 00 00 00 00 00 00 00 00