Commodore 128 Programmer's Reference Manual page 622

612 COMMODORE 128
Vss [•
PA, fT
PA2 [7
PA3 [7
PA4 [7
PAg [7
PA7
PBq
PB2
PB3
PB4
PB5
pb6
PB7
PC [i8
TOD [t
vCc [20
6526
401 CNT
39] sp
RSq
3t] RS,
RS2
rs3
RES
33j DB0
32] DB,
DB2
30l DB3
29J DB4
DB5
27] DB6
DB7
25J <h.
24J FLAG
23I cs
22J R/W
2i| IRQ
Figure 16-19. 6526 CIA Pin Configuration
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