SH7727 Datasheet, PDF (393/1109 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7700 Series

Section 12 Bus State Controller (BSC)
Table 12.11 8-Bit External Device/Little Endian Access and Data Alignment
Data Bus
Strobe Signals
Operation
D31 to D23 to D15 to D7 to
D24 D16 D8
D0
WE3, WE2, WE1, WE0,
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
1st time —
—
—
Data
access at 0 at 0
7 to 0
Assert
2nd time —
—
—
Data
at 1
15 to 8
Assert
Word
1st time —
—
—
Data
access at 2 at 2
7 to 0
Assert
2nd time —
—
—
Data
at 3
15 to 8
Assert
Longword 1st time —
—
—
Data
access at 0 at 0
7 to 0
Assert
2nd time —
—
—
Data
at 1
15 to 8
Assert
3rd time —
—
—
Data
at 2
23 to 16
Assert
4th time —
—
—
Data
at 3
31 to 24
Assert
Rev. 5.00 Dec 12, 2005 page 321 of 1034
REJ09B0254-0500