SM3 Datasheet, PDF (8/36 Pages) Connor-Winfield Corporation – ULTRA MINIATURE STRATUM 3 MODULE

Detailed Description continued
Serial Communication
The user can control the operation of the SM3 module through the SPI port. Timing diagrams are shown below. When
SPI_ENABLE is high, SPI_OUT is in a Tri-state mode.
Serial Interface Timing, Read Access
Figure 4
SPI_Enable
t_CS
1 2 3 4 5 6 7 8 9 10 11 12 _{13 14 15 16}
SPI_Clk
t_RWs
t_RWh
t_CH
t_CL
SPI_In
SPI_Out
A0 A1 A2 A3 A4 A5 A6 0
LSB
MSB
t_DRDY
D0 D1 D2 D3 D4 D5 D6 D7
LSB
MSB
Serial Interface Timing, Write Access
Figure 5
SPI_Enable
t_CS
SPI_Clk
1 2 3 4 5 6 7 8 9 10 11 12 _{13 14 15 16}
t_RWs
t_RWh
t_CH
t_CL
SPI_In
A0 A1 A2 A3 A4 A5 A6 1 D0 D1 D2 D3 D4 D5 D6 D7
LSB
MSB LSB
MSB
Data Sheet #: TM052 Page 8 of 36 Rev: 03 Date: 11/07/08
© Copyright 2008 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice