Datasheet

78K0/Kx2-L CHAPTER 15 SERIAL INTERFACE IICA
R01UH0028EJ0400 Rev.4.00 548
Sep 27, 2010
(ii) When WTIM0 = 1
ST AD6 to AD0 R/W ACK D7 to D0 D7 to D0ACK ACK SP
3 4 5 2 1
1: IICAS0 = 0110×010B
2: IICAS0 = 0010×110B
3: IICAS0 = 0010×100B
4: IICAS0 = 0010××00B
5: IICAS0 = 00000001B
Remark
: Always generated
: Generated only when SPIE0 = 1
×: Don’t care
(6) Operation when arbitration loss occurs (no communication after arbitration loss)
When the device is used as a master in a multi-master system, read the MSTS0 bit each time interrupt request
signal INTIICA0 has occurred to check the arbitration result.
(a) When arbitration loss occurs during transmission of slave address data (when WTIM0 = 1)
ST AD6 to AD0 R/W ACK D7 to D0 D7 to D0ACK ACK SP
2 1
1: IICAS0 = 01000110B
2: IICAS0 = 00000001B
Remark
: Always generated
: Generated only when SPIE0 = 1