h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 1045
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h8s-2646
Manufacturer Part Number
h8s-2646
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2646.pdf
(1165 pages)
- Current page: 1045 of 1165
- Download datasheet (6Mb)
ABWCR—Bus Width Control Register
ASTCR—Access State Control Register
Modes 5 to 7
Mode 4
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
Initial value
Read/Write
Area 7 to 0 Access State Control
AST7
0
1
ABW7
Area 7 to 0 Bus Width Control
R/W
R/W
R/W
0
1
7
1
7
1
0
Area n is designated for 2-state access
Wait state insertion in area n external space is disabled
Area n is designated for 3-state access
Wait state insertion in area n external space is enabled
Area n is designated for 16-bit access
Area n is designated for 8-bit access
AST6
ABW6
R/W
R/W
R/W
6
1
6
1
0
AST5
ABW5
R/W
R/W
R/W
5
1
5
1
0
AST4
ABW4
R/W
R/W
R/W
4
1
4
1
0
(n = 7 to 0)
Rev. 5.00 Sep 22, 2005 page 1019 of 1136
H'FED0
H'FED1
AST3
ABW3
R/W
R/W
R/W
3
1
3
1
0
Appendix B Internal I/O Register
(n = 7 to 0)
AST2
ABW2
R/W
R/W
R/W
2
1
2
1
0
AST1
ABW1
R/W
R/W
R/W
REJ09B0257-0500
1
1
1
1
0
Bus Controller
Bus Controller
AST0
ABW0
R/W
R/W
R/W
0
1
0
1
0
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