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RL78/G1A CHAPTER 13 SERIAL INTERFACE IICA
(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 00 (IICCTL00)
SPT0 bit: Bit 0 of IICA control register 00 (IICCTL00)
IICRSV bit: Bit 0 of IICA flag register 0 (IICF0)
IICBSY bit: Bit 6 of IICA flag register 0 (IICF0)
STCF bit: Bit 7 of IICA flag register 0 (IICF0)
STCEN bit: Bit 1 of IICA flag register 0 (IICF0)
R01UH0305EJ0200 Rev.2.00 571
Jul 04, 2013