SH7641 Datasheet, PDF (372/1036 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family / SH7641 Series

Section 12 Bus State Controller (BSC)
Table 12.6 16-Bit External Device Access and Data Alignment
Data Bus
Operation
D31 to D23 to D15 to
D24 D16 D8
WE3,
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 at 0 time at 0
31 to 24 23 to 16
2nd


Data
Data

time at 2
15 to 8 7 to 0
Strobe Signals
WE2,
DQMUL
WE1,
DQMLU

Assert



Assert



Assert

Assert

Assert

Assert
WE0,
DQMLL

Assert

Assert
Assert
Assert
Assert
Assert
Rev. 4.00 Sep. 14, 2005 Page 322 of 982
REJ09B0023-0400