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STCENn
0
After operation is enabled (IICEn = 1), cannot generate a start condition until a stop condition is detected.
1
After operation is enabled (IICEn = 1), can generates a start condition without detecting a stop condition.
Condition for clearing (STCENn = 0)
• Detection of start condition
• RESET input
IICRSVn
0
Enable communication reservation
1
Disable communication reservation
Condition for clearing (IICRSVn = 0)
• Clearing by instruction
• RESET input
Cautions 1. Write to the STCENn bit only when the operation is stopped (IICEn = 0).
2. As the bus release status (IICBSYn = 0) is recognized immediately after I
operation is enabled regardless of the actual bus status when STCENn = 1,
when generating the first start condition (STTn = 1), it is necessary to verify
that the bus has been released in order to prevent such communications from
being destroyed.
3. Write to the IICRSVn bit only when the operation is stopped (IICEn = 0).
Remark
STTn: Bit 1 of IIC control register n (IICCn)
IICEn: Bit 7 of IIC control register n (IICCn)
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CHAPTER 10
SERIAL INTERFACE FUNCTION
Initial start enable trigger
Condition for setting (STCENn = 1)
• Setting by instruction
Communication reservation function disable bit
Condition for setting (IICRSVn = 1)
• Setting by instruction
User's Manual U13850EJ6V0UD
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C
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