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Chapter 18
I
2
C Bus (IIC)
Preliminary User’s Manual U17566EE1V2UM00
18.6.5
Stop condition
When the SCLn pin is high level, changing the SDAn pin from low level to high
level generates a stop condition.
A stop condition is a signal that the master device outputs to the slave device
when serial transfer has been completed. When used as the slave device, the
start condition can be detected.
Figure 18-10
Stop condition
A stop condition is generated when the IICCn.SPTn bit is set to 1. When the
stop condition is detected, the IICSn.SPDn bit is set to 1 and the INTIICn
signal is generated when the IICCn.SPIEn bit is set to 1.
By setting
IICCN.STPn=1 the master device will also cancel its own wait status.
H
S
CLn
S
DAn
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