Renesas M16C/64C User Manual page 645

M16C/64C Group
CEC
Set to 1 by a program
CTXDEN bit
CTFLG bit
CTABTFLG bit
IR bit in the
CEC1IC register
CCTB1 register
Rewritable period by a
program
CCTBE bit
0
Rewritable period by a
program
CRXDEN bit
CRFLG bit
CRSTFLG bit
CRD8FLG bit
IR bit in the
CEC2IC register
CCRB1 register
CCRBE bit
CCRBAI bit
Bits CTXDEN and CRXDEN: Bits in the CECC3 register
Bits CTFLG, CTABTFLG, CRFLG, CRD8FLG, and CRSTFLG: Bits in the CECFLG register
Bits CCRBE and CCRBAI: Bits in the CCRB2 register
CCTBE bit: Bit in the CCTB2 register
The above diagram applies under the following conditions:
The CTISEL2 bit in the CISEL register is set to 1 (transmit error interrupt enabled).
The CFIL bit in the CECC2 register is set to 0 (filter enabled).
The CRISEL0 bit in the CISEL register is set to 0 (8th bit receive interrupt disabled).
The CRISEL1 bit in the CISEL register is set to 1 (10th bit receive interrupt enabled).
The CRISELS bit in the CISEL register is set to 1 (reception start bit interrupt enabled).
Figure 26.17 Transmission Example (When an Arbitration Lost Detected)
R01UH0092EJ0110 Rev.1.10
Jul 31, 2012
ST H7 H6 H5 H4
Transmission starts at the rising
edge of the count source
Set to 0 by acceptance of an
interrupt or by a program
Undefined
Undefined
Undefined
26. Consumer Electronics Control (CEC) Function
Arbitration lost occurs
H3 H2 H1 H0 EOM ACK
Set to 0 by acceptance of an
interrupt or by a program
(Do not rewrite)
(Do not rewrite)
Header block data
Set to 0 by a
program
Set to 0 in
synchronization
with the count source
Set to 0 by acceptance of
an interrupt or by a program
Header block EOM
Header block ACK
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