|
The
Memory-2 Board |
| Address Map
- 1x Memory-2 Board (1x 256K ROM + 2MB RAM) |
| |
| Board firmware -
gal8.jed |
| |
|
256K ROM |
| $ |
F |
F |
F |
F |
F |
F |
| $ |
F |
C |
0 |
0 |
0 |
0 |
|
|
A23 |
A22 |
A21 |
A20 |
|
A19 |
A18 |
A17 |
A16 |
|
1 |
1 |
1 |
1 |
|
1 |
1 |
X |
X |
|
|
|
|
|
|
1MB RAM |
| $ |
1 |
F |
F |
F |
F |
F |
| $ |
1 |
0 |
0 |
0 |
0 |
0 |
|
|
A23 |
A22 |
A21 |
A20 |
|
A19 |
A18 |
A17 |
A16 |
|
0 |
0 |
0 |
1 |
|
X |
X |
X |
X |
|
|
1MB RAM |
| $ |
0 |
F |
F |
F |
F |
F |
| $ |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
A23 |
A22 |
A21 |
A20 |
|
A19 |
A18 |
A17 |
A16 |
|
0 |
0 |
0 |
0 |
|
X |
X |
X |
X |
|
|
|
|
| |
| Address Map
- 1x Memory-2 Board (1x 256K ROM + 2MB RAM) |
| |
| Board firmware -
gal8b.jed |
| |
|
256K ROM |
| $ |
F |
B |
F |
F |
F |
F |
| $ |
F |
8 |
0 |
0 |
0 |
0 |
|
|
A23 |
A22 |
A21 |
A20 |
|
A19 |
A18 |
A17 |
A16 |
|
1 |
1 |
1 |
1 |
|
1 |
0 |
X |
X |
|
|
|
|
|
|
1MB RAM |
| $ |
3 |
F |
F |
F |
F |
F |
| $ |
3 |
0 |
0 |
0 |
0 |
0 |
|
|
A23 |
A22 |
A21 |
A20 |
|
A19 |
A18 |
A17 |
A16 |
|
0 |
0 |
1 |
1 |
|
X |
X |
X |
X |
|
|
1MB RAM |
| $ |
2 |
F |
F |
F |
F |
F |
| $ |
2 |
0 |
0 |
0 |
0 |
0 |
|
|
A23 |
A22 |
A21 |
A20 |
|
A19 |
A18 |
A17 |
A16 |
|
0 |
0 |
1 |
0 |
|
X |
X |
X |
X |
|
|
| |
| |
| Address Map
- 2x Memory-2 Boards (2x 256K ROM + 4MB RAM) |
| |
| Board 1 firmware -
gal8.jed |
| Board 2 firmware -
gal8b.jed |
| |
|
256K ROM |
| $ |
F |
F |
F |
F |
F |
F |
| $ |
F |
C |
0 |
0 |
0 |
0 |
|
|
A23 |
A22 |
A21 |
A20 |
|
A19 |
A18 |
A17 |
A16 |
|
1 |
1 |
1 |
1 |
|
1 |
1 |
X |
X |
|
|
256K ROM |
| $ |
F |
B |
F |
F |
F |
F |
| $ |
F |
8 |
0 |
0 |
0 |
0 |
|
|
A23 |
A22 |
A21 |
A20 |
|
A19 |
A18 |
A17 |
A16 |
|
1 |
1 |
1 |
1 |
|
1 |
0 |
X |
X |
|
|
|
|
|
|
1MB RAM |
| $ |
3 |
F |
F |
F |
F |
F |
| $ |
3 |
0 |
0 |
0 |
0 |
0 |
|
|
A23 |
A22 |
A21 |
A20 |
|
A19 |
A18 |
A17 |
A16 |
|
0 |
0 |
1 |
1 |
|
X |
X |
X |
X |
|
|
1MB RAM |
| $ |
2 |
F |
F |
F |
F |
F |
| $ |
2 |
0 |
0 |
0 |
0 |
0 |
|
|
A23 |
A22 |
A21 |
A20 |
|
A19 |
A18 |
A17 |
A16 |
|
0 |
0 |
1 |
0 |
|
X |
X |
X |
X |
|
|
1MB RAM |
| $ |
1 |
F |
F |
F |
F |
F |
| $ |
1 |
0 |
0 |
0 |
0 |
0 |
|
|
A23 |
A22 |
A21 |
A20 |
|
A19 |
A18 |
A17 |
A16 |
|
0 |
0 |
0 |
1 |
|
X |
X |
X |
X |
|
|
1MB RAM |
| $ |
0 |
F |
F |
F |
F |
F |
| $ |
0 |
0 |
0 |
0 |
0 |
0 |
|
|
A23 |
A22 |
A21 |
A20 |
|
A19 |
A18 |
A17 |
A16 |
|
0 |
0 |
0 |
0 |
|
X |
X |
X |
X |
|
|
| |
| |
| Note: |
|
When using two
boards only the first board should have Boot Vector Mode
ENABLED |
| Board 1 - J1
open (the system will boot from this boards ROM) |
| Board 2 - J1
short |
| |
| |