Table 13.13 8-Bit External Device/Little-Endian Access And Data Alignment - Hitachi SH7751 Hardware Manual

Table 13.13 8-Bit External Device/Little-Endian Access and Data Alignment

Operation
Access
Size Address No. D31–D24 D23–D16 D15–D8 D7–D0
Byte n 1
Word 2n 1
2n+1 2
Long- 4n 1
word
4n+1 2
4n+2 3
4n+3 4
Quad- 8n 1
word
8n+1 2
8n+2 3
8n+3 4
8n+4 5
8n+5 6
8n+6 7
8n+7 8
Data Bus
— — —
— — —
— — —
— — —
— — —
— — —
— — —
— — —
— — —
— — —
— — —
— — —
— — —
— — —
— — —






,
   
,
DQM3 DQM2
Data
7–0
Data
7–0
Data
15–8
Data
7–0
Data
15–8
Data
23–16
Data
31–24
Data
7–0
Data
15–8
Data
23–16
Data
31–24
Data
39–32
Data
47–40
Data
55–48
Data
63–56
Rev. 3.0, 04/02, page 365 of 1064
Strobe Signals






, , ,
   
, ,
DQM1 DQM0
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
Asserted
,