Document Number: 002-14826 Rev. *G
Page 58 of 65
PRELIMINARY
CYW43903
17.1.4 Memory-Write Timing
shows the SPI flash extended and quad memory-write (Page Program) timing.
Note:
Regarding
:
1. For an extended SPI protocol, C
x
= 7 + (A[MAX] + 1).
2. For a quad SPI protocol, C
x
= 1 + (A[MAX] + 1)/4.
Figure 16. Memory-Write Timing
0
7
8
C
x
MSB
Command
LSB
C
Extended
DQ0
D
IN
D
IN
D
IN
D
IN
D
IN
D
IN
D
IN
D
IN
D
IN
0
1
2
C
x
C
Quad
DQ[3:0]
MSB
A[MAX]
A[MIN]
LSB
MSB
Command
LSB
A[MAX]
A[MIN]
D
IN
D
IN
D
IN
MSB
LSB