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CHAPTER 16 SERIAL INTERFACE IICA
User’s Manual U19780EJ2V0UD
428
(13) Bus status detector
This circuit detects whether or not the bus is released by detecting start conditions and stop conditions.
However, as the bus status cannot be detected immediately following operation, the initial status is set by the
STCEN bit.
Remark
STT0 bit:
Bit 1 of IICA control register 0 (IICACTL0)
SPT0 bit:
Bit 0 of IICA control register 0 (IICACTL0)
IICRSV bit: Bit 0 of IICA flag register 0(IICAF0)
IICBSY bit: Bit 6 of IICA flag register 0(IICAF0)
STCF bit:
Bit 7 of IICA flag register 0(IICAF0)
STCEN bit: Bit 1 of IICA flag register 0(IICAF0)