HD6413007F20 Datasheet, PDF (685/798 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

Appendix B Internal I/O Registers
ASTCR⎯Access State Control Register
Bit
Initial value
Read/Write
7
AST7
1
R/W
6
AST6
1
R/W
5
AST5
1
R/W
H'EE021
4
AST4
1
R/W
3
AST3
1
R/W
2
AST2
1
R/W
Bus controller
1
AST1
1
R/W
0
AST0
1
R/W
Area 7 to 0 access state control
Bits 7 to 0
AST7
to AST0
0
1
Number of States in Access Area
Areas 7 to 0 are two-state access areas
Areas 7 to 0 are three-state access areas
Rev.5.00 Sep. 12, 2007 Page 655 of 764
REJ09B0396-0500