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RL78/G1A CHAPTER 13 SERIAL INTERFACE IICA
(3) Slave device operation (when receiving extension code)
The device is always participating in communication when it receives an extension code.
(a) Start ~ Code ~ Data ~ Data ~ Stop
(i) When WTIM0 = 0
ST AD6 to AD0 R/W ACK D7 to D0 D7 to D0ACK ACK SP
3 4 2 1
1: IICS0 = 0010×010B
2: IICS0 = 0010×000B
3: IICS0 = 0010×000B
4: IICS0 = 00000001B
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 D0ACK ACK SP
3 4 5 2 1
1: IICS0 = 0010×010B
2: IICS0 = 0010×110B
3: IICS0 = 0010×100B
4: IICS0 = 0010××00B
5: IICS0 = 00000001B
Remark
: Always generated
: Generated only when SPIE0 = 1
×: Don’t care
R01UH0305EJ0200 Rev.2.00 624
Jul 04, 2013