NEC V850/SB1 User Manual page 302

(2) Slave device operation (when receiving slave address data (match with SVAn))
(a) Start ~ Address ~ Data ~ Data ~ Stop
<1> When WTIMn = 0
ST AD6 to AD0
L1: IICSn = 0001X110B
L2: IICSn = 0001X000B
L3: IICSn = 0001X000B
∆ 4: IICSn = 00000001B
Remark
<2> When WTIMn = 1
ST AD6 to AD0
L1: IICSn = 0001X110B
L2: IICSn = 0001X100B
L3: IICSn = 0001XX00B
∆ 4: IICSn = 00000001B
Remark
302
CHAPTER 10 SERIAL INTERFACE FUNCTION
RW AK D7 to D0
L1
L: Always generated
∆: Generated only when SPIEn = 1
X: don't care
n = 0, 1
RW AK D7 to D0
L1
L: Always generated
∆: Generated only when SPIEn = 1
X: don't care
n = 0, 1
User's Manual U13850EJ6V0UD
AK D7 to D0 AK
L2 L3
AK D7 to D0 AK
L2 L3
SP
∆4
SP
∆4