638
Chapter 15
Asynchronous Serial Interface C (UARTC)
User’s Manual U16580EE3V1UD00
15.5.10 Receive data noise filter
This filter performs the RXDCn pin sampling using the internal system clock (f
XX
/2).
When the same sampling value is read twice, the match detector output changes and sampling as the
input data is performed.
Moreover, since the circuit is as shown in Figure 15-20, the processing that goes on within the receive
operation is delayed by 2 clocks in relation to the external signal status.
Figure 15-20:
Noise Filter Circuit
Match
detector
In
f
/2
XX
RXDCn
Q
I
n
LD_EN
Q
Receive data signal
Содержание V850E/PH2
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