M16C65 Datasheet, PDF (674/829 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.
26. Consumer Electronics Control (CEC) Function
Both edges are detected
CEC input
(input data: 0)
Acceptable range
When the CDATRNG bit is set to 0: ±200µs
When the CDATRNG bit is set to 1: ±300µs
Acceptable range
±350µs
±500µs
0 ms
1.5 ms
2.4 ms
Both edges are detected
Acceptable range
When the CDATRNG bit is set to 0: ±200µs
When the CDATRNG bit is set to 1: ±300µs
CEC input
(input data: 1)
Acceptable range
±350µs
±500µs
0 ms
0.6 ms
CRRNG, CDATRNG: Bits in the CECC2 register
Figure 26.7 Data Bit Acceptable Range (CRRNG Bit = 1)
2.4 ms
If the data bit is out of the acceptable range, the receive error occurs. The operations when the
receive error occurs are as follows:
• The CRERRFLG bit in the CECFLG register is set to 1 (receive error)
• 3.6 ms of low pulse is output when the CABTEN bit in the CECC4 register is set to 1 (low pulse out-
put enabled in receive error).
Low pulse output timing can be selected by the CABTWEN bit in the CECC4 register when the
CABTEN bit is set to 1 (low pulse output enabled in receive error). Figure 26.8 shows Low Pulse Out-
put in Receive Error.
REJ09B0484-0030 Rev.0.30 Sep 09, 2008
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