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M16C/5L Group, M16C/56 Group
23.1.9.9
TRMREQ Bit
The TRMREQ bit selects transmit modes shown in Table 23.11.
When this bit is set to 1, the corresponding mailbox is configured for transmission of a data frame or a
remote frame.
When this bit is set to 0, the corresponding mailbox is not configured for transmission of a data frame or
a remote frame.
If the TRMREQ bit is changed from 1 to 0 to cancel the corresponding transmission request, either the
TRMABT or SENTDATA bit is set to 1.
When setting the TRMREQ bit to 1, do not set the RECREQ bit to 1.
To change the configuration of a mailbox from reception to transmission, first abort the reception and
then set bits NEWDATA and MSGLOST to 0 before changing to transmission.
R01UH0127EJ0110 Rev.1.10
Sep 01, 2011
23. CAN Module
Page 569 of 803
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