Hitachi H8/3006 Hardware Manual page 686

IOAR0B—I/O Address Register 0B
7
Bit
Initial value
Read/Write R/W
6 5
R/W R/W R/W
Short address mode : source or destination address
Full address mode : not used
H'FFF2E
4 3
Undetermined
R/W R/W
DMAC0
2 1 0
R/W R/W
673