HD6417706 Datasheet, PDF (239/709 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series

Table 8.11 32-Bit External Device/Big Endian Access and Data Alignment
Data Bus
Strobe Signals
Operation
D31 to D23 to D15 to
WE3, WE2, WE1, WE0,
D24 D16 D8
D7 to D0 DQMUU DQMUL DQMLU DQMLL
Byte access at 0 Data —
—
—
7 to 0
Assert
Byte access at 1 —
Data —
—
7 to 0
Assert
Byte access at 2 —
—
Data —
7 to 0
Assert
Byte access at 3 —
—
—
Data
7 to 0
Assert
Word access at 0 Data Data —
—
15 to 8 7 to 0
Assert Assert
Word access at 2 —
—
Data Data
15 to 8 7 to 0
Assert Assert
Longword access Data Data Data Data Assert Assert Assert Assert
at 0
31 to 24 23 to 16 15 to 8 7 to 0
Table 8.12 16-Bit External Device/Big 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 access at 0 — — Data Data
15 to 8 7 to 0
Word access at 2 — — Data Data
15 to 8 7 to 0
Longword 1st
— — Data Data
access time at 0
31 to 24 23 to 16
at 0
2nd — — Data Data
time at 2
15 to 8 7 to 0
Strobe Signals
WE2, WE1,
DQMUL DQMLU
Assert
Assert
Assert
Assert
Assert
Assert
WE0,
DQMLL
Assert
Assert
Assert
Assert
Assert
Assert
Rev. 4.00, 03/04, page 193 of 660