585
I
2
C Bus (IIC)
Chapter 18
Preliminary User’s Manual U17566EE1V2UM00
STDn
Start condition detection
0
Start condition was not detected.
1
Start condition was detected. This indicates that the address transfer period is in effect
Condition for clearing (STDn = 0)
Condition for setting (STDn = 1)
•
When a stop condition is detected
•
At the rising edge of the next byte’s first clock
following address transfer
•
Cleared by LRELn = 1 (communication save)
•
When the IICEn bit changes from 1 to 0 (operation
stop)
•
After reset
•
When a start condition is detected
SPDn
Stop condition detection
0
Stop condition was not detected.
1
Stop condition was detected. The master device’s communication is terminated and the bus is
released.
Condition for clearing (SPDn = 0)
Condition for setting (SPDn = 1)
•
At the rising edge of the address transfer byte’s first
clock following setting of this bit and detection of a
start condition
•
When the IICEn bit changes from 1 to 0 (operation
stop)
•
After reset
•
When a stop condition is detected
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