参数资料
型号: ADJD-S371-QR999
厂商: Avago Technologies Ltd.
英文描述: Miniature Surface-Mount RGB Digital Color Sensor Module
中文描述: 微型表面贴装RGB数字色彩传感器模块
文件页数: 3/23页
文件大小: 270K
代理商: ADJD-S371-QR999
To read from a register, the master first generates a START
condition. Then it sends the slave address for the device
it wants to communicate with. The least significant bit
(LSB) of the slave address must indicate that the master
wants to write to the slave. The addressed device will
then acknowledge the master.
The master writes the register address it wants to access
and waits for the slave to acknowledge. The master then
generates a repeated START condition and resends the
slave address sent previously. The least significant bit
(LSB) of the slave address must indicate that the master
wants to read from the slave. The addressed device will
then acknowledge the master.
The master reads the register data sent by the slave and
sends a no acknowledge signal to stop reading. The
master then generates a STOP condition to end the data
transfer.
Figure 11. Register byte read protocol
S A6 A5 A4 A3 A2 A1 A0 W A D7 D6 D5 D4 D3 D2 D1 D0 A Sr A6 A5 A4 A3 A2 A1 A0 R A D7 D6 D5 D4 D3 D2 D1 D0 A
P
START
CONDITION
MASTER WILL WRITE DATA
MASTER WILL READ DATA
REPEATED START
CONDITION
STOP
CONDITION
MASTER SENDS
SLAVE ADDRESS
MASTER SENDS
SLAVE ADDRESS
MASTER WRITES
REGISTER ADDRESS
MASTER READS
REGISTER DATA
SLAVE ACKNOWLEDGE
MASTER NOT
ACKNOWLEDGE
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