Figure 8 I2C Read Operation - Bg BG0836 Manual

BG0836 1/2.7 inch 1080P HD CMOS image sensor
defined as following:
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SCL
SDA
0x64 ADDR
START
Figure 8 I2C read operation shows example of the reading operation (Reading data
from 0x012C register). DSP is the master, BG0836 is the slave. The sequence defined
as following:
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The master sends a start bit to the slave.
The master sends the slave device address (0x64) with write mode.
The slave sends an acknowledge bit to the master to indicate receive its slave
device address.
The master sends 8-bit higher register address (0x01) to the slave.
The slave sends an acknowledge bit to the master.
The master sends 8-bit lower register address (0x2C) to the salve.
The slave sends an acknowledge bit to the master.
The master sends 8-bit register data to the salve.
The slave sends an acknowledge bit to the master.
The master sends a stop bit to the slave.
0x01 REG
ACK
Figure 7 I2C write operation
The master sends a start bit to the slave.
The master sends the slave device address (0x64) with write mode.
The slave sends an acknowledge bit to the master to indicate receive its slave
device address.
The master sends 8-bit higher register address (0x01) to the slave.
The slave sends an acknowledge bit to the master.
The master sends 8-bit lower register address (0x2C) to the salve.
The slave sends an acknowledge bit to the master.
The master sends 8-bit register data to the salve.
The master sends the slave device address (0x65) with read mode.
The slave sends an acknowledge bit to the master.
The slave sends 8-bit data to the master
The master sends 8-bit register data to the salve.
The master sends a stop bit to the slave.
0x2C REG
ACK
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0x56 DATA
ACK ACK
V1.2
STOP