RL78/G1D
(4) Operation without communication
(a) Start ~ Code ~ Data ~ Data ~ Stop
ST
AD6 to AD0 R/W ACK
1: IICSn = 00000001B
Remark
: Generated only when SPIEn = 1
(5) Arbitration loss operation (operation as slave after arbitration loss)
When the device is used as a master in a multi-master system, read the MSTSn bit each time interrupt request
signal INTIICAn has occurred to check the arbitration result.
(a) When arbitration loss occurs during transmission of slave address data
(i) When WTIMn = 0
ST
AD6 to AD0 R/W ACK
1: IICSn = 0101×110B
2: IICSn = 0001×000B
3: IICSn = 0001×000B
4: IICSn = 00000001B
Remark
: Always generated
: Generated only when SPIEn = 1
×:
Don't care
Remark n = 0
R01UH0515EJ0120 Rev.1.20
Dec 16, 2016
D7 to D0
ACK
D7 to D0
ACK
1
2
CHAPTER 14 SERIAL INTERFACE IICA
D7 to D0
ACK
D7 to D0
ACK
SP
3
SP
1
4
581