HD6417706 Datasheet, PDF (242/709 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series

Table 8.16 8-Bit External Device/Little Endian Access and Data Alignment
Data Bus
Operation
D31 to D23 to D15 to
WE3,
D24 D16 D8 D7 to D0 DQMUU
Byte access at 0 — — — Data
7 to 0
Byte access at 1 — — — Data
7 to 0
Byte access at 2 — — — Data
7 to 0
Byte access at 3 — — — Data
7 to 0
Word
1st time — — — Data
access at 0 at 0
7 to 0
2nd — — — Data
time at
15 to 8
1
Word
1st time — — — Data
access at 2 at 2
7 to 0
2nd — — — Data
time at
15 to 8
3
Longword 1st time — — — Data
access at 0 at 0
7 to 0
2nd — — — Data
time at
15 to 8
1
3rd time — — — Data
at 2
23 to 16
4th time — — — Data
at 3
31 to 24
Strobe Signals
WE2, WE1,
DQMUL DQMLU
WE0,
DQMLL
Assert
Assert
Assert
Assert
Assert
Assert
Assert
Assert
Assert
Assert
Assert
Assert
Rev. 4.00, 03/04, page 196 of 660