Datasheet

V850ES/JG3 CHAPTER 17 I

C BUS

R01UH0015EJ0300 Rev.3.00 Page 577 of 870

Sep 30, 2010

17.7.4 Operation without communication

(1) Start ~ Code ~ Data ~ Data ~ Stop

ST AD6 to AD0 R/W ACK D7 to D0 ACK D7 to D0 ACK SP

Δ1

Δ 1: IICSn register = 00000001B

Remarks 1. Δ: Generated only when SPIEn bit = 1

2. n = 0 to 2

17.7.5 Arbitration loss operation (operation as slave after arbitration loss)

(1) When arbitration loss occurs during transmission of slave address data

<1> When IICCn.WTIMn bit = 0

ST AD6 to AD0 R/W ACK D7 to D0 ACK D7 to D0 ACK SP

S1 S2 S3 Δ4

S1: IICSn register = 0101X110B (Example: When IICSn.ALDn bit is read during interrupt servicing)

S2: IICSn register = 0001X000B

S3: IICSn register = 0001X000B

Δ 4: IICSn register = 00000001B

Remarks 1. S: Always generated

Δ: Generated only when IICCn.SPIEn bit = 1

X: don’t care

2. n = 0 to 2

<2> When WTIMn bit = 1

ST AD6 to AD0 R/W ACK D7 to D0 ACK D7 to D0 ACK SP

S1 S2 S3 Δ4

S1: IICSn register = 0101X110B (Example: When ALDn bit is read during interrupt servicing)