| Pin |
Name |
Description |
| A |
GND |
Ground |
| B |
CA0 |
Address 0 |
| C |
CA1 |
Address 1 |
| D |
CA2 |
Address 2 |
| E |
CA3 |
Address 3 |
| F |
CA4 |
Address 4 |
| H |
CA5 |
Address 5 |
| J |
CA6 |
Address 6 |
| K |
CA7 |
Address 7 |
| L |
CA8 |
Address 8 |
| M |
CA9 |
Address 9 |
| N |
CA10 |
Address 10 |
| P |
CA11 |
Address 11 |
| R |
CA12 |
Address 12 |
| S |
CA13 |
Address 13 |
| T |
I/O 2 |
Decoded I/O block 2,
starting at $9130 |
| U |
I/O 3 |
Decoded I/O block 3,
starting at $9140 |
| V |
S02 |
Phase 2 System Clock |
| W |
/NMI |
Non maskable
Interrupt |
| X |
/RESET |
6502 Reset |
| Y |
n/c |
Not connected |
| Z |
GND |
Ground |
| 1 |
GND |
Ground |
| 2 |
CD0 |
Data 0 |
| 3 |
CD1 |
Data 1 |
| 4 |
CD2 |
Data 2 |
| 5 |
CD3 |
Data 3 |
| 6 |
CD4 |
Data 4 |
| 7 |
CD5 |
Data 5 |
| 8 |
CD6 |
Data 6 |
| 9 |
CD7 |
Data 7 |
| 10 |
/BLK 1 |
BLK 1 (Memory
location $2000 - $3fff) |
| 11 |
/BLK 2 |
BLK 2 (Memory
location $4000 - $5fff) |
| 12 |
/BLK 3 |
BLK 3 (Memory
location $6000 - $7fff) |
| 13 |
/BLK 5 |
BLK 5 (Memory
location $a000 - $bfff) |
| 14 |
RAM 1 |
RAM 1 (Memory
location $0400 - $07ff) |
| 15 |
RAM 2 |
RAM 2 (Memory
location $0800 - $0bff) |
| 16 |
RAM 3 |
RAM 3 (Memory
location $0c00 - $0fff) |
| 17 |
V R/W |
Read/Write from Vic
chip (1=R, 0=W) |
| 18 |
C R/W |
Read/Write from CPU
(1=R, 0=W) |
| 19 |
/IRQ |
6502 Interrupt
Request |
| 20 |
n/c |
Not connected |
| 21 |
+5V |
+5 VDC |
| 22 |
GND |
Ground |
