Rainbow Electronics W90N740 - Manual (Page 27)

W90N740
Publication Release Date: November 26, 2004
- 23 - Revision A4
Table7.2.8 Byte access read operation with Big Endian
Access Operation Read Operation (CPU Register Í External Memory)
XD Width Word Half Word Byte
Bit Number
CPU Reg Data
7 0
A
7 0
B
7 0
C
7 0
D
7 0
C
7 0
D
7 0
D
SA BA0 BA1 BA2 BA3 BAL BAU BA
Bit Number
SD
7 0
A
7 0
B
7 0
C
7 0
D
7 0
C
7 0
D
7 0
D
Bit Number
ED
7 0
A
15 8
B
23 16
C
31 24
D
7 0
C
15 8
D
7 0
D
XA BA0 BA0 BA0 BA0 BAL BAL BA
SDQM [3-0] AUUU UAUU UUAU UUUA XXAU XXUA XXXA
Bit Number
XD
31 0
ABCD
31 0
ABCD
31 0
ABCD
31 0
ABCD
15 0
CD
15 0
CD
7 0
D
Bit Number
Ext. Mem Data
31 0
ABCD
15 0
CD
7 0
D
Timing Sequence