BU92747XXX Datasheet, PDF (26/46 Pages) Rohm – IrDA Controller LSI built-in Ir remote control

BD92747XXX
Datasheet
COMPLEX PROTOCOL
If the repeated START condition is occurred after the register address is set, the register data of following address is
read. Subsequently, the register data of the increased address is read. But the following register address becomes
00h when the register address becomes final address. After the transmission is finished, the register address is
increased.
S 1 1 1 0 1 1 1 0 A A7 A6 A5 A4 A3 A2 A1 A0 A Sr 1 1 1 0 1 1 1 1 A
Slave address
R/W=0（WRITE）
Register address
Slave address
R/W=1（READ）
D7 D6 D5 D4 D3 D2 D1 D0 A _{………………} D7 D6 D5 D4 D3 D2 D1 D0 A P
Data
Data
Register address increment
Register address increment
from master to slave
from slave to master
A=acknowledge
A=not acknowledge
S=START condition
P=STOP condition
Sr=repeat START condition
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TSZ22111・15・001
26/26
TSZ02201-0E4E0F100020-1-2
24. June. 2015 Rev.001