Fujitsu F2MC-16LX Hardware Manual page 627

Appendix A Memory Map
1: The initial value is "1".
X: The initial value is irregular.
-: It is Undefined bit. The initial value is indefinite.
*: The initial value is "1" or "0".
Note:
You cannot use any I/O-related command to registers that are placed from 7900 to 7FFF .
H H
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