Conic Football II

Chip labeled 
MP1181
MSL ^ 7945


7 buttons
9 10-segment LEDs
piezo


TMS1100 pinout
1  R8   - Digit 7 and switches and test pin
2  R9   - Digit 8 and buttons
3  R10  - Digit 9 (Leftmost) and buttons
4  VDD  - battery - 
5  K1   - buttons, switches and test pin
6  K2   - buttons, switches and test pin
7  K4   - buttons, switches and test pin
8  K8   - buttons, switches and test pin
9  INIT - to 1/2 player switch
10 O7   - decimal point
11 O6   - segment G
12 O5   - segment F
13 O4   - segment E
14 O3   - segment D
15 O2   - segments C and D2
16 O1   - segments B and A2
17 O0   - segment A
18 OSC1 - 47pF disc cap to VSS, 47K resistor to VDD
19 OSC2 - OSC1
20 VSS  - battery + via switch
21 R0   - piezo
22 R1   - 0=segments B and C, 1=segments A2 and D2
23 R2   - Digit 1
24 R3   - Digit 2
25 R4   - Digit 3
26 R5   - Digit 4
27 R6   - Digit 5
28 R7   - Digit 6


Input Matrix

        K1        K2         K4          K8
     --------  --------  ----------  ----------
R8      --     Test Pin   Pass Sw      2P Sw
R9     Down       Up       Right        Left
R10  Pass/Kick  Score     Status         --



LED Layout

digit 9                             digit 1

 A    -    -    -    -    -    -    -    -
F B  | |  | |  | |  | |  | |  | |  | |  | |
 G    -    -    -    -    -    -    -    - 
E C  | |  | |  | |  | |  | |  | |  | |  | |
 D .  - .  - .  - .  - .  - .  - .  - .  - .

 
  
 A2   -    -    -    -    -    -    -    -
 

 
 D2   -    -    -    -    -    -    -    -



Piezo Connection

R0 to one wire of piezo
75492 output to other wire (R0 is 75492 input)



OPLA: 3F 06 5B 4F 66 6D 7D 07 7F 6F 40 01 08 02 04 00