SH7751 Datasheet, PDF (495/1224 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

13. Bus State Controller (BSC)
Table 13.11 32-Bit External Device/Little-Endian Access and Data Alignment
Operation
Data Bus
Access
Size Address No.
Byte 4n
1
4n + 1 1
4n + 2 1
4n + 3 1
Word 4n
1
4n + 2 1
Long- 4n
1
word
Quad- 8n
1
word
8n + 4 2
D31–D24
—
—
Data
7–0
—
Data
15–8
Data
31–24
Data
31–24
Data
63–56
D23–D16
—
—
Data
7–0
—
—
Data
7–0
Data
23–16
Data
23–16
Data
55–48
D15–D8
—
Data
7–0
—
—
Data
15–8
—
Data
15–8
Data
15–8
Data
47–40
D7–D0
Data
7–0
—
—
—
Data
7–0
—
Data
7–0
Data
7–0
Data
39–32
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 Asserted
Asserted Asserted Asserted Asserted
Rev.4.00 Oct. 10, 2008 Page 397 of 1122
REJ09B0370-0400