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RL78/G1A CHAPTER 13 SERIAL INTERFACE IICA
(h) When arbitration loss occurs due to low-level data when attempting to generate a stop condition
(i) When WTIM0 = 0
ST AD6 to AD0 R/W ACK D7 to D0 D7 to D0ACK SPACK D7 to D0 ACK
SPT0 = 1
↓
3 4 5 2 1
1: IICS0 = 1000×110B
2: IICS0 = 1000×000B (Sets the WTIM0 bit to 1)
3: IICS0 = 1000×100B (Clears the WTIM0 bit to 0)
4: IICS0 = 01000100B
5: 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 SPACK D7 to D0 ACK
SPT0 = 1
↓
3 4 2 1
1: IICS0 = 1000×110B
2: IICS0 = 1000×100B (Sets the SPT0 bit to 1)
3: IICS0 = 01000100B
4: IICS0 = 00000001B
Remark
: Always generated
: Generated only when SPIE0 = 1
×: Don’t care
R01UH0305EJ0200 Rev.2.00 636
Jul 04, 2013