
Figure 2:
Drive A Comm.
Numbers
FFFF
F000
EFFF
E000
DFFF
D000
CFFF
C000
BFFF
B000
AFFF
A000
9FFF
9000
8FFF
8000
7FFF
7000 6FFF
6000
5FFF
5000
4FFF
4000
3FFF
3000
2FFF
2000
1FFF
1000
0FFF
0000
Holding
Register Map
Drive B registers
Channel B registers
Drive B registers
Drive B registers
Drive A Registers
Drive A registers
Drive B Comm.
Numbers
FFFF
F000
EFFF
E000
DFFF
D000
CFFF
C000
BFFF
B000
AFFF
A000
9FFF
9000
8FFF
8000
7FFF
7000
6FFF
6000
5FFF
5000
4FFF
4000
3FFF
3000
2FFF
2000
1FFF
1000
0FFF
0000
Note: Inaccessible (currently unused) areas are shaded.
20