CHAPTER 17 SERIAL INTERFACE IIC0
Preliminary User’s Manual U17260EJ3V1UD
452
(c) Start ~ Code ~ Data ~ Data ~ Stop (extension code transmission)
(i) When WTIM0 = 0
ST
AD6 to AD0
R/W ACK
D7 to D0
D7 to D0
ACK
ACK
SP
SPT0 = 1
↓
3
4
5
2
1
1: IICS0 = 1010×110B
2: IICS0 = 1010×000B
3: IICS0 = 1010×000B (Sets WTIM0 to 1)
Note
4: IICS0 = 1010××00B (Sets SPT0 to 1)
5: IICS0 = 00000001B
Note
To generate a stop condition, set WTIM0 to 1 and change the timing for generating the INTIIC0 interrupt
request signal.
Remark
: Always
generated
: Generated only when SPIE0 = 1
×:
Don’t
care
(ii) When WTIM0 = 1
ST
AD6 to AD0
R/W ACK
D7 to D0
D7 to D0
ACK
ACK
SP
SPT0 = 1
↓
3
4
2
1
1: IICS0 = 1010×110B
2: IICS0 = 1010×100B
3: IICS0 = 1010××00B (Sets SPT0 to 1)
4: IICS0 = 00001001B
Remark
: Always
generated
: Generated only when SPIE0 = 1
×:
Don’t
care