HD64F3039F18 Datasheet, PDF (672/710 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8 Family / H8/300H Series

Appendix B Internal I/O Register Field
ASTCR—Access State Control Register
H'ED
Bus controller
Bit
Initial value
Read/Write
7
AST7
1
R/W
6
AST6
1
R/W
5
AST5
1
R/W
4
AST4
1
R/W
3
AST3
1
R/W
2
AST2
1
R/W
1
AST1
1
R/W
0
AST0
1
R/W
Area 7 to 0 access state control
Bits 7 to 0
AST7 to AST0
Number of States in Access Cycle
0
Areas 7 to 0 are two-state access areas
1
Areas 7 to 0 are three-state access areas
WCR—Wait Control Register
H'EE
Bus controller
Bit
7
6
5
4
3
2
1
0
—
—
—
— WMS1 WMS0 WC1 WC0
Initial value
1
1
1
1
0
0
1
1
Read/Write
—
—
—
—
R/W
R/W
R/W
R/W
Wait mode select 1 and 0
Bit 3 Bit 2
WMS1 WMS0
Wait Mode
0
0 Programmable wait mode
1 No wait states inserted by
wait-state controller
1
0 Pin wait mode 1
1 Pin auto-wait mode
Wait count 1 and 0
Bit 1 Bit 0
WC1 WC0
Number of Wait States
0
0 No wait states inserted by
wait-state controller
1 1 state inserted
1
0 2 states inserted
1 3 states inserted
Rev.3.00 Mar. 26, 2007 Page 648 of 682
REJ09B0353-0300