Technical Reference Manual
002-29852 Rev. *B
Bits Name
SW
HW
Default or
Enum
Description
19
TX_HEADER_ARB_LOST RW1C
RW1S
0
HW sets this field to '1', when it detects arbitration lost
after the number of retries has exceed the maximum
allowed retries.
Note: The ongoing message transfer is aborted
(INTR.TX_HEADER_DONE and
INTR.TX_RESPONSE_DONE is NOT activated and
the TX_HEADER and TX_RESPONSE command is
cleared to 0).
20
TX_BIT_ERROR
RW1C
RW1S
0
HW sets this field to '1', when a transmitted
'cxpi_tx_out' value does NOT match a received
'cxpi_rx_in' value.
The match is performed for the PID fields or PType (for
the START bit and STOP bit only) and for the rest of
the response i.e. frame information fields, data fields
and the crc field (for the START bit, DATA bits, and
STOP bits).
Note: When CTL0.BIT_ERROR_IGNORE is '0', the
ongoing message transfer is aborted
(INTR.TX_HEADER_DONE and
INTR.TX_RESPONSE_DONE is NOT activated) and
the TX_HEADER and TX_RESPONSE commands are
set to '0'. When CTL0.BIT_ERROR_IGNORE is '1', the
ongoing message transfer would be transferred.
21
RX_CRC_ERROR
RW1C
RW1S
0
HW sets this field to '1', when received CRC is not
matching with the compute CRC from header and
response.
Note: The ongoing message transfer is aborted
(INTR.RX_RESPONSE_DONE is NOT activated).
22
RX_HEADER_PARITY
_ERROR
RW1C
RW1S
0
HW sets this field to '1', when the received PID field or
PType field has a parity error.
Note: The ongoing message transfer is aborted
(INTR.RX_HEADER_PID_DONE is NOT activated).
23
RX_DATA_LENGTH
_ERROR
RW1C
RW1S
0
HW sets this field to '1, when the received message
frame's data fields are more than the value specified in
DLC (for normal frame) or DLCEXT (for long frame)
i.e. after receiving CRC byte(s), HW is receiving logical
'0' during EOF. For the case of receiving data length
less than DLC/DLCEXT, HW will also set this field to
'1'. This is the case where IBS>9 before the number of
data reaches data length, then HW will report as data
length error. HW starts checking after frame
information byte.
Note: SW needs to handle the message transfer i.e.
discard or flush out. HW will still set the
RX_RESPONSE_DONE.
24
TX_DATA_LENGTH
_ERROR
RW1C
RW1S
0
HW sets this field to '1, when the transmit message
frame's data fields are more than the value specified in
DLC (for normal frame) or DLCEXT (for long frame)
i.e. after transmitting CRC(s) byte, HW is receiving
logical '0' during EOF.
Note: HW will still set TX_RESPONSE_DONE and the
TX_HEADER and TX_RESPONSE commands are set
to '0'.
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2022-04-18
TRAVEO™ T2G Automotive MCU: TVII-B-E-4M body controller entry registers