587
I
2
C Bus (IIC)
Chapter 18
Preliminary User’s Manual U17566EE1V2UM00
Note
Bits 6 and 7 are read-only bits.
Caution
1.
Write the STCENn bit only when operation is stopped
(IICEn = 0).
2.
When the STCENn = 1, the bus released status (IICBSYn = 0) is recognized
regardless of the actual bus status immediately after the I
2
Cn bus operation
is enabled. Therefore, to issue the first start condition (STTn = 1), it is
necessary to confirm that the bus has been released, so as to not disturb
other communications.
3.
Write the IICRSVn bit only when operation is stopped (IICEn = 0).
IICRSVn
Communication reservation function disable bit
0
Communication reservation enabled
1
Communication reservation disabled
Condition for clearing (IICRSVn = 0)
Condition for setting (IICRSVn = 1)
•
Clearing by instruction
•
After reset
•
Setting by instruction
electronic components distributor