Entex Soccer

Chip labeled 
TMS1000NL
MP0158
MS ^ 7923

die labeled
MP0158

10 buttons: P1 and P2 U/D/L/R Kick
1 switch: 1/2 Players
2 7-segment LEDs
30 LEDs
Piezo buzzer


TMS1000 pinout
1  R8   - P1 Score 7-seg LED common
2  R9   - P2 Score 7-seg LED common
3  R10  - piezo
4  VDD
5  K1   - buttons
6  K2   - buttons
7  K4   - buttons
8  K8   - buttons
9  INIT - cap to VSS
10 O7   - N/C
11 O6   - segment G
12 O5   - segment F
13 O4   - segment E
14 O3   - segment D and LED matrix column 4 (right)
15 O2   - segment C and LED matrix column 3
16 O1   - segment B and LED matrix column 2
17 O0   - segment A and LED matrix column 1 (left)
18 OSC1 - OSC2 and 33pF cap to VSS, 47K resistor to VDD
19 OSC2 - OSC1
20 VSS
21 R0   - LED matrix row 8 (top) and buttons
22 R1   - LED matrix row 7 and buttons
23 R2   - LED matrix row 6 and buttons and switch
24 R3   - LED matrix row 5
25 R4   - LED matrix row 4
26 R5   - LED matrix row 3
27 R6   - LED matrix row 2
28 R7   - LED matrix row 1 (bottom)


button matrix
        K1            K2           K4         K8
R0     P1 up       P1 right     P1 left     P1 down
R1    P2 down      P2 left      P2 right     P2 up
R2    Auto (1P)   Manual (2P)   P1 kick     P2 kick


LED matrix
segment   A   B   C   D
R0        .   .   .
R1        .   .   .   .
R2        .   .   .   .
R3        .   .   .   .
R4        .   .   .   .
R5        .   .   .   .
R6        .   .   .   .
R7        .   .   .