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SH7751 Datasheet, PDF (494/1224 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer | |||
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13. Bus State Controller (BSC)
Table 13.10 8-Bit External Device/Big-Endian Access and Data Alignment
Operation
Data Bus
Access
Size Address No. D31âD24 D23âD16 D15âD8 D7âD0
Byte n
1â
â
â
Data
7â0
Word 2n
1â
â
â
Data
15â8
2n + 1 2 â
â
â
Data
7â0
Long- 4n
1â
â
â
Data
word
31â24
4n + 1 2 â
â
â
Data
23â16
4n + 2 3 â
â
â
Data
15â8
4n + 3 4 â
â
â
Data
7â0
Quad- 8n
1â
â
â
Data
word
63â56
8n + 1 2 â
â
â
Data
55â48
8n + 2 3 â
â
â
Data
47â40
8n + 3 4 â
â
â
Data
39â32
8n + 4 5 â
â
â
Data
31â24
8n + 5 6 â
â
â
Data
23â16
8n + 6 7 â
â
â
Data
15â8
8n + 7 8 â
â
â
Data
7â0
WE3,
CAS3,
DQM3
Strobe Signals
WE2,
CAS2,
DQM2
WE1,
CAS1,
DQM1
WE0,
CAS0,
DQM0
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Rev.4.00 Oct. 10, 2008 Page 396 of 1122
REJ09B0370-0400
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