NEC V850ES/KE1+ User Manual page 504

(7) When arbitration loss occurs due to a stop condition when attempting to generate a restart condition
<1> When WTIM0 bit = 0
ST AD6 to AD0
1: IICS0 register = 1000X110B
2: IICS0 register = 1000X000B (WTIM0 bit = 1)
3: IICS0 register = 1000XX00B
Δ 4: IICS0 register = 01000001B
Remark : Always generated
Δ: Generated only when SPIE0 bit = 1
X: don't care
<2> When WTIM0 bit = 1
ST AD6 to AD0
1: IICS0 register = 1000X110B
2: IICS0 register = 1000XX00B
Δ 3: IICS0 register = 01000001B
Remark : Always generated
Δ: Generated only when SPIE0 bit = 1
X: don't care
504
CHAPTER 16 I
STT0 bit = 1
R/W ACK D7 to D0 ACK
1 2
STT0 bit = 1
R/W ACK D7 to D0 ACK
1
User's Manual U16896EJ2V0UD
2
C BUS
↓
SP
Δ4
3
↓
SP
Δ3
2