R01UH0136EJ0210 Rev.2.10
Page 580 of 800
Jul 31, 2012
M16C/64A Group
25. Multi-master I
2
C-bus Interface
25.5.4
Generating Stop Condition
(Technical update number: TN-16C-A176A/E)
In the multi-master I
2
C-bus interface, when the slave device and/or other master devices drive the
SCLMM line low, no normal stop condition is generated. This is because the SDAMM line is released
while the SCLMM line is still driven low.
Figure 25.22 Abnormal Waveform
Abnormal state: other devices drive the SCLMM line low
Internal SCL signal
Internal SDA line
Set-up time
All other devices release the SCLMM line
Set-up time
: Abnormal waveform
: Ideal waveform
Write signal to
the S00 register
SCLMM line
SDAMM line
t
SU;DAT
Summary of Contents for M16C/60 Series
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