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LSM303D 数据表(PDF) 25 Page - STMicroelectronics

部件名 LSM303D
功能描述  Embedded temperature sensor
PDF  52 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

LSM303D 数据表(HTML) 25 Page - STMicroelectronics

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LSM303D
Digital interfaces
52
6.2.1
SPI read
Figure 7. SPI read protocol
The SPI read command is performed with 16 clock pulses. The multiple byte read command
is performed by adding blocks of 8 clock pulses to the previous one.
bit 0: READ bit. The value is 1.
bit 1: MS bit. When 0, does not increment the address; when 1, increments the address in
multiple reads.
bit 2-7: address AD(5:0). This is the address field of the indexed register.
bit 8-15: data DO(7:0) (read mode). This is the data that is read from the device (MSb first).
bit 16-... : data DO(...-8). Further data in multiple byte reads.
Figure 8. Multiple byte SPI read protocol (2-byte example)
CS
SPC
SDI
SDO
RW
DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0
AD5 AD4 AD3 AD2 AD1 AD0
MS
AM10130V1
CS
SPC
SDI
SD O
RW
DO 7 DO6 DO 5 DO4 DO 3 DO2 DO 1 DO0
A D5 A D4 AD 3 A D2 A D1 A D0
DO 15 DO 14 DO 13 DO 12 DO 11 DO 10 D O9 D O8
MS
AM10131V1



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