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H8S/2214 Scheda tecnica(PDF) 827 Page - Renesas Technology Corp

Il numero della parte H8S/2214
Spiegazioni elettronici  16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series
PDF  936 Pages
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Produttore elettronici  RENESAS [Renesas Technology Corp]
Homepage  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8S/2214 Scheda tecnica(HTML) 827 Page - Renesas Technology Corp

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Appendix B Internal I/O Register
Rev.4.00 Sep. 18, 2008 Page 767 of 872
REJ09B0189-0400
ABWCR—Bus Width Control Register
H'FED0
Bus Controller
7
ABW7
1
R/W
0
R/W
6
ABW6
1
R/W
0
R/W
5
ABW5
1
R/W
0
R/W
4
ABW4
1
R/W
0
R/W
3
ABW3
1
R/W
0
R/W
0
ABW0
1
R/W
0
R/W
2
ABW2
1
R/W
0
R/W
1
ABW1
1
R/W
0
R/W
Bit
:
Initial value :
Modes 5 to 7
Mode 4
:
R/W
Initial value :
:
R/W
Area 7 to 0 Bus Width Control
0
1
Area n is designated for 16-bit access
Area n is designated for 8-bit access
(n = 7 to 0)
ASTCR—Access State Control Register
H'FED1
Bus Controller
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
0
AST0
1
R/W
2
AST2
1
R/W
1
AST1
1
R/W
Bit
Initial value
R/W
:
:
:
Area 7 to 0 Access State Control
0
1
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
(n = 7 to 0)



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