BCM43903 Datasheet, PDF (80/87 Pages) Cypress Semiconductor – WICED™ IEEE 802.11 b/g/n SoC with an Embedded Applications Processor

BCM43903 Preliminary Data Sheet
SPI Flash Timing
Memory-Write Timing
Figure 16 shows the SPI flash extended and quad memory-write (Page Program) timing.
Note: Regarding Figure 16:
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
Extended
0
7
8
Cx
C
DQ0
Command
MSB
LSB
A[MAX]
A[MIN]
LSB
DIN
DIN
DIN
DIN
DIN
DIN
DIN
DIN
DIN
MSB
Quad
C
DQ[3:0]
0
1
2
Command
MSB
LSB
A[MAX]
Cx
A[MIN]
DIN
MSB
LSB
DIN
DIN
Broadcom^®
March 12, 2016 • 43903-DS102-R
BROADCOM CONFIDENTIAL
Page 79