User Manual

Red
pine Signals, Inc. Proprietary and confidential Page 22
RS9110
-
N
-
11
-
02
802.11bgn
WLAN
Module
Data Sheet
Version
1.48
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1 Bit 0
SPI_CS
SPI_CLK
SPI_DIN
SPI_DOUT Bit 7 Bit 6 Bit 5
Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Bit 0
Bit 0
Mode 0
Mode 3
Figure
8: S
PI
Protocol
4
.
4.2.1: Full Speed Mode
Parameter Symbol Min. Typ. Max. Units
SPI_CLK Ts
pi 0 25 MHz
SPI_CS to output delay Tcs 3.5 - 7.5 ns
SPI CS to input setup time Tcst 5.5 - -
SPI_DIN (MOSI), input setup
ti
me
Ts 1 - - ns
SPI_DIN (MOSI), input hold
ti
me
Th 1.5 - ns
SPI_DOUT (MISO), clock to
ou
tput delay
Tod 4 - 9 ns
Ta
ble
6: AC Characteristics – SPI Interface Full-Speed Mode
SPI_CLK
SPI_CS
SPI_MOSI
SPI_MISO
Tcst
Tod
Ts
Th
Tcs
SPI_CS
SPI_MISO
Fi
gure
9: Interface Timings – SPI Interface Full-Speed Mode
4.4.2.2: High Speed Mode