HD6417750 Datasheet, PDF (426/1039 Pages) Renesas Technology Corp – SuperH RISC engine

Table 13.8 32-Bit External Device/Big-Endian Access and Data Alignment
Operation
Data Bus
Access
Size Address No. D31–D24 D23–D16 D15–D8 D7–D0
Byte 4n
1 Data
—
7–0
—
—
4n+1 1 —
Data
—
—
7–0
4n+2 1 —
—
Data —
7–0
4n+3 1 —
—
—
Data
7–0
Word 4n
1 Data
Data
—
—
15–8
7–0
4n+2 1 —
—
Data Data
15–8 7–0
Long- 4n
word
1 Data
31–24
Data
23–16
Data
15–8
Data
7–0
Quad- 8n
word
1 Data
63–56
Data
55–48
Data Data
47–40 39–32
8n+4
2 Data
31–24
Data
23–16
Data
15–8
Data
7–0
Strobe Signals
:(6,
&$66,
DQM3
:(5,
&$65,
DQM2
:(4,
&$64,
DQM1
:(3,
&$63,
DQM0
Asserted
Asserted
Asserted
Asserted
Asserted Asserted
Asserted Asserted
Asserted Asserted Asserted Asserted
Asserted Asserted Asserted Asserted
Asserted Asserted Asserted Asserted
Rev. 6.0, 07/02, page 374 of 986