LDS8161/41
Option 2: Combined (extended) protocol:
S
Slave Address
W
A
Register Address m
A
Sr
Slave Address
W
A
Data
A*
P
To: Reg. m
S: Start Condition
Sr Start Repeat Condition
R, W: Read bit (1), Write bit (0)
A: Acknowledge (SDAT high)
A*: Not Acknowledge (SDAT low)
P: Stop Condition
Slave Address: Device address 7 bits (MSB first).
Register Address: Device register address 8 bits
Data : Data to read or write 8 bits
- send by master
- send by slave
I 2 C BUS PROTOCOL
Standard protocol
Combined protocol:
WRITE INSTRUCTION SEQUENCE
Standard protocol:
Write Instruction Example - Setting 20mA Current in LEDB1 and LEDB2
? 2009 IXYS Corp.
Characteristics subject to change without notice
5
Doc. No. 8141/61_DS, Rev. N1.0
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