NEC 78K0 Series User Manual page 466

(ii) Extension code
ST AD6 to AD0 R/W ACK
1: IICS0 = 1000×110B
2: IICS0 = 01100010B
Sets LREL0 = 1 by software
3: IICS0 = 00000001B
Remark : Always generated
: Generated only when SPIE0 = 1
×: Don't care
n = 6 to 0
(e) When loss occurs due to stop condition during data transfer
ST AD6 to AD0 R/W ACK
1: IICS0 = 10000110B
2: IICS0 = 01000001B
Remark : Always generated
: Generated only when SPIE0 = 1
×: Don't care
n = 6 to 0
466
CHAPTER 17 SERIAL INTERFACE IIC0
D7 to Dn ST AD6 to AD0
1
D7 to Dn SP
1 2
Preliminary User's Manual U17260EJ3V1UD
R/W ACK D7 to D0 ACK
2
SP
3