SH7280 Datasheet, PDF (339/1726 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine family

Section 9 Bus State Controller (BSC)
Table 9.10 8-Bit External Device Access and Data Alignment in Little-Endian Mode
Data Bus
Operation
D15 to D8
D7 to D0
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 1st time at 0 
Data 7 to 0
2nd time at 1 
Data 15 to 8
Word access at 2 1st time at 2 
Data 7 to 0
2nd time at 3 
Data 15 to 8
Longword
access at 0
1st time at 0 
2nd time at 2 
Data 7 to 0
Data 15 to 8
3rd time at 2 
Data 23 to 16
4th time at 3 
Data 31 to 24
Strobe Signals
WRH, DQMLU WRL, DQMLL

Assert

Assert

Assert

Assert

Assert

Assert

Assert

Assert

Assert

Assert

Assert

Assert
Rev. 1.00 Jun. 26, 2008 Page 309 of 1692
REJ09B0393-0100