Iv-4-3. Optional Ram Board - Canon A-200 series Service Manual

IV-4-3. Optional RAM Board
An usable address area of this RAM board can be varied by resetting the DIP switch on this board.
Bit Usable memory area
1 40000H - 5FFFFH
2 60000H - 7FFFFH
3 80000H - 9FFFFH
4
40000H - 5FFFFH
5
60000H - 7FFFFH
6
80000H - 9FFFFH
Table 4-3
• Example 1) Usable area: 40000H - 7FFFFH
ON
U~~~U~
1 2 3 4 5 6 Figure 4-16
• Example 2) Usable area: 60000H - 9FFFFH
ON
~u~~~u
1 2 3 4 5 6
Figure 4-17
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