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RL78/G1A CHAPTER 13 SERIAL INTERFACE IICA
(g) When arbitration loss occurs due to a stop condition when attempting to generate a restart condition
(i) When WTIM0 = 0
ST AD6 to AD0 R/W ACK D7 to D0 ACK SP
STT0 = 1
↓
3 4 2 1
1: IICS0 = 1000×110B
2: IICS0 = 1000×000B (Sets the WTIM0 bit to 1)
3: IICS0 = 1000××00B (Sets the STT0 bit to 1)
4: IICS0 = 01000001B
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 ACK SP
STT0 = 1
↓
2 3 1
1: IICS0 = 1000×110B
2: IICS0 = 1000××00B (Sets the STT0 bit to 1)
3: IICS0 = 01000001B
Remark
: Always generated
: Generated only when SPIE0 = 1
×: Don’t care
R01UH0305EJ0200 Rev.2.00 635
Jul 04, 2013