Renesas M16C/64A Series User Manual page 616

M16C/64A Group
Table 26.2 CEC Function Specifications (2/2)
Item
Digital filter enabled/disabled
Transmission stop selected
Transmission stop by receiving ACK or NACK can be selected.
Arbitration lost detection conditions
One of the following conditions can be selected:
•
When transmitting the start bit and the data bit of Initiator address
•
When transmitting the start bit and all data bits
Transmit rising timing selected
Selected from 8 levels, standard value -180 μ s to standard value +30 μ s
•
Transmit falling timing selected
Start bit: standard value -160 μ s to standard value
•
Data bit: selectable from 4 levels, standard value -310 μ s to standard value
•
Receive edge detection selected
One of the following conditions can be selected.
•
Only a falling edge is detected
•
Both falling and rising edges are detected
ACK output in receiving process
One of the following conditions can be selected.
•
Inserted by program
Set by the CCRBAO bit of CCRB2 register.
Inserted by hardware
•
ACK is output when matching Destination address.
NACK is output when not matching or in Broadcast.
Start bit acceptable range
Select ±200 μ s or ±300 μ s
•
Data bit acceptable range
One of the following conditions can be selected:
Period between a falling edge and a rising edge ±200 μ s,
•
Period between a falling edge and a falling edge ±350 μ s
Period between a falling edge and a rising edge ±300 μ s,
•
Period between a falling edge and a falling edge ±500 μ s
Low pulse output when receive error occurs
•
Whether error low pulse is output or not can be selected when the receive error occurs.
Low pulse output wait control when receive error occurs.
One of the following conditions can be selected:
Error low pulse is output in synchronization with the rising edge of the CEC input signal if the
•
CEC input signal is low level when the receive error occurs.
Error low pulse is output immediately after the error occurs regardless of the CEC input signal
•
state.
R01UH0136EJ0210 Rev.2.10
Jul 31, 2012
26. Consumer Electronics Control (CEC) Function
Specification
Page 583 of 800