M_CAN_TXBCR field descriptions
Field Description
0–31
CR
Cancellation Request
Each Tx Buffer has its own Cancellation Request bit. Writing 1 will set the corresponding Cancellation
Request bit; writing 0 has no impact. This enables the CPU to set cancellation requests for multiple Tx
Buffers with one write to TXBCR. TXBCR bits are set only for those Tx Buffers configured via TXBC. The
bits remain set until the corresponding bit of TXBRP is reset.
0 No cancellation pending
1 Cancellation pending
3.3.39 Tx Buffer Transmission Occurred Register (M_CAN_TXBTO)
Address: 0h base + D8h offset = D8h
Bit 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
R
TO
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
M_CAN_TXBTO field descriptions
Field Description
0–31
TO
Transmission Occurred
Each Tx Buffer has its own Transmission Occurred bit. The bits are set when the corresponding TXBRP
bit is cleared after a successful transmission. The bits are reset when a new transmission is requested by
writing 1 to the corresponding bit of register TXBAR.
0 No transmission occurred
1 Transmission occurred
3.3.40 Tx Buffer Cancellation Finished Register (M_CAN_TXBCF)
Address: 0h base + DCh offset = DCh
Bit 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
R
CF
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
M_CAN_TXBCF field descriptions
Field Description
0–31
CF
Cancellation Finished
Memory Map and Register Description
MPC5777C Reference Manual Addendum, Rev. 1, 12/2015
74 Freescale Semiconductor, Inc.