M16C65 Datasheet, PDF (656/829 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
CEC
fC
Timer A underflow
CCLK1 to CCLK0
00b
01b
Clock control
circuit
PCR4
CTXDEN
CTNACK, CTACKEN
CCTB1
CCTBE
ACK output
Transmission _CTFLG
circuit
CRACK
0
1
CCRBAO
Providing to CEC blocks
(32.768kHz)
CTD8FLG
Detect transmission of
8 bits of data
CSTRRNG CRRNG
Address
comparator
Detect Destination address
match or Broadcast
CRXDEN
Start bit
detection
CDATRNG
CRADRI1
CRADRI2
0 ^CFIL
Digital
filter ¹
0/1
determination
CTABTS
Receiving
circuit
Arbitration
detection
CCRB1
CRFLG
CRD8FLG
(Detect reception of 8/10
bits of data)
CTNACKFLG
(Detect NACK in
transmission)
CCTBA
CCRBE
CCRBAI
CRERRFLG
(Receive signals out of
acceptable range)
CTABTFLG
(Detect arbitration lost)
CCLK1, CCKL0: Bits in the CECC1 register
CRRNG, CTNACK, CTACKEN, CRACK, CTABTS, CFIL, CSTRRNG, CDATRNG: Bits in the CECC2 register
CTXDEN, CRXDEN: Bits in the CECC3 register
CRFLG, CTFLG, CRERRFLG, CTABTFLG, CTNACKFLG, CRD8FLG, CTD8FLG : Bits in the CECFLG register
CCTBE, CCTBA: Bits in the CCTB2 register
CCRBE, CCRBAO, CCRBAI: Bits in the CCRB2 register
PCR4: Bit in the PCR register
CCTB1: CCTB1 register
CCRB1: CCRB1 register
CRADRI1, CRADRI2: Registers CRADRI1 and CRADRI2
Figure 26.1 CEC Function Block Diagram
Table 26.3 I/O Pin
Pin Name
I/O Type
Description
CEC
Input/Output
CEC input and output (N-channel open-drain output)
Note:
1. Set the direction bit of the ports sharing a pin to 0 (input mode).
REJ09B0484-0030 Rev.0.30 Sep 09, 2008
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