CHAPTER 10 SERIAL INTERFACE FUNCTION
User’s Manual U13850EJ6V0UD
360
10.4.5 I
2
C interrupt requests (INTIICn)
The following shows the value of IIC status register n (IICSn) at the INTIICn interrupt request generation timing and
at the INTIICn interrupt timing (n = 0, 1).
(1) Master device operation
(a) Start ~ Address ~ Data ~ Data ~ Stop (normal transmission/reception)
<1> When WTIMn = 0
SPTn = 1
↓
ST
AD6 to AD0
RW
AK
D7 to D0
AK
D7 to D0
AK
SP
▲
1
▲
2
▲
3
▲
4
∆
5
▲
1: IICSn = 10XXX110B
▲
2: IICSn = 10XXX000B
▲
3: IICSn = 10XXX000B (WTIMn = 0)
▲
4: IICSn = 10XXXX00B
∆
5: IICSn = 00000001B
Remark
▲
: Always generated
∆
:
Generated only when SPIEn = 1
X:
don’t care
n = 0, 1
<2> When WTIMn = 1
SPTn = 1
↓
ST
AD6 to AD0
RW
AK
D7 to D0
AK
D7 to D0
AK
SP
▲
1
▲
2
▲
3
∆
4
▲
1: IICSn = 10XXX110B
▲
2: IICSn = 10XXX100B
▲
3: IICSn = 10XXXX00B
∆
4: IICSn = 00000001B
Remark
▲
: Always generated
∆
:
Generated only when SPIEn = 1
X:
don’t care
n = 0, 1