NEC V850E/Dx3 Preliminary User's Manual page 617

2
I C Bus (IIC)
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(6) When arbitration loss occurs due to low level of SDAn pin when
attempting to generate a restart condition
When WTIMn bit = 1
ST AD6 to AD0 RW AK
▲1: IICSn register = 1000X110B
▲2: IICSn register = 1000XX00B
▲3: IICSn register = 01000100B (Example: When ALDn bit is read during interrupt servicing)
Δ 4: IICSn register = 00000001B
Remarks 1. ▲: Always generated
Δ: Generated only when SPIEn bit = 1
X: don't care
2. n = 0 to 2
(7) When arbitration loss occurs due to a stop condition when attempting to
generate a restart condition
When WTIMn bit = 1
ST
▲1: IICSn register = 1000X110B
▲2: IICSn register = 1000XX00B
Δ 3: IICSn register = 01000001B
Remarks 1. ▲: Always generated
Preliminary User's Manual U17566EE1V2UM00
STTn bit = 1
↓
D7 to D0 AK D7 to D0
▲1 ▲2
AD6 to AD0 RW AK D7 to D0
▲1
Δ: Generated only when SPIEn bit = 1
X: don't care
2. n = 0 to 2
Chapter 18
AK D7 to D0 AK SP
▲3 Δ4
STTn bit = 1
↓
AK SP
▲2 Δ3
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