NXP Semiconductors MPC5777C - Page 43

M_CAN_PSR field descriptions (continued)
Field Description
18
REDL
Received a CAN FD Message
This bit is set independent of acceptance filtering.
NOTE: This field is reset by a read operation.
0 Since this bit was reset by the CPU, no CAN FD message has been received
1 Message in CAN FD format with EDL flag set has been received
19
RBRS
BRS flag of last received CAN FD Message
This bit is set together with REDL, independent of acceptance filtering.
NOTE: This field is reset by a read operation.
0 Last received CAN FD message did not have its BRS flag set
1 Last received CAN FD message had its BRS flag set
20
RESI
ESI flag of last received CAN FD Message
This bit is set together with REDL, independent of acceptance filtering.
NOTE: This field is reset by a read operation.
0 Last received CAN FD message did not have its ESI flag set
1 Last received CAN FD message had its ESI flag set
21–23
FLEC
Fast Last Error Code
Type of last error that occurred in the data phase of a CAN FD format frame with its BRS flag set. Coding
is the same as for LEC. This field will be cleared to zero when a CAN FD format frame with its BRS flag
set has been transferred (reception or transmission) without error.
NOTE: This field is set by a read operation.
24
BO
Bus_Off Status
0 The M_CAN is not Bus_Off
1 The M_CAN is in Bus_Off state
25
EW
Warning Status
0 Both error counters are below the Error_Warning limit of 96
1 At least one of error counter has reached the Error_Warning limit of 96
26
EP
Error Passive
0 The M_CAN is in the Error_Active state. It normally takes part in bus communication and sends an
active error flag when an error has been detected
1 The M_CAN is in the Error_Passive state
27–28
ACT
Activity
Monitors the module's CAN communication state.
00 Synchronizing - node is synchronizing on CAN communication
01 Idle - node is neither receiver nor transmitter
10 Receiver - node is operating as receiver
11 Transmitter - node is operating as transmitter
Table continues on the next page...
Chapter 3 Modular CAN (M_CAN)
MPC5777C Reference Manual Addendum, Rev. 1, 12/2015
Freescale Semiconductor, Inc. 43