M16C65 Datasheet, PDF (498/829 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M16C/60

Under development
M16C/65 Group
Preliminary Specification
This is a preliminary specification and is subject to change.
22. Remote Control Signal Receiver
22.3.1.2 PMCi Input
The following can be selected in PMCi input (Refer to Figure 22.2 “Remote Control Signal Receiver
Block Diagram (2/3) (PMCi Input)”).
• Input pin
• Input polarity
• Digital filter
A pin to which the PMCi signal is input is selected by bits PSEL1 to PSEL0 in the PMCiCON2
register.
Input polarity of the PMCi pin can be inverted. Whether to invert or not can be selected by the SINV
bit in the PMCiCON0 register.
If the signal input to the PMCi pin holds the same level four sequential cycles when the FIL bit in the
PMCiCON0 register is 1 (digital filter enabled), that level is transferred to internal circuit. Sampling
clock of the digital filter is the count source.
Input to the PMCi pin is transferred to the internal circuit in synchronization with the count source.
Internal processing causes delay. Figure 22.5 shows PMCi Input Delay.
Sampling clock
(count source)
PMCi pin input
Digital filter output
(internal signal)
PMCi internal input signal
FIL = 1(digital filter enabled)
FIL = 0(digital filter disabled)
Holds the same
level during four
sequential cycles
Internal
processing
(2 cycles)
Internal processing (5 to 6 cycles)
Holds the same level during four sequential cycles
Internal
processing
i = 0, 1
FIL: Bit in the PMCiCON0 register
Figure 22.5 PMCi Input Delay
REJ09B0484-0030 Rev.0.30 Sep 09, 2008
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