12.2.53 CAN Transmit Queue Control Register High
Note:
- These bits can only be modified in
Configuration mode (OPMOD[2:0] =
100).
| Name: | C1TXQCONH |
| Offset: | 0x712 |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| PLSIZE[2:0] | FSIZE[4:0] | ||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| TXAT[1:0] | TXPRI[4:0] | ||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | ||
| Reset | 1 | 1 | 0 | 0 | 0 | 0 | 0 | ||
Bits 15:13 – PLSIZE[2:0] Payload Size bits(1)
| Value | Description |
|---|---|
111 |
64 data bytes |
110 |
48 data bytes |
101 |
32 data bytes |
100 |
24 data bytes |
011 |
20 data bytes |
010 |
16 data bytes |
001 |
12 data bytes |
000 |
8 data bytes |
Bits 12:8 – FSIZE[4:0] FIFO Size bits(1)
| Value | Description |
|---|---|
11111 |
FIFO is 32 messages deep |
| . . . | |
00010 |
FIFO is 3 messages deep |
00001 |
FIFO is 2 messages deep |
00000 |
FIFO is 1 message deep |
Bits 6:5 – TXAT[1:0] Retransmission Attempts bits
This feature is enabled when RTXAT (C1CONH[0]) is set.
| Value | Description |
|---|---|
11 |
Unlimited number of retransmission attempts |
10 |
Unlimited number of retransmission attempts |
01 |
Three retransmission attempts |
00 |
Disables retransmission attempts |
Bits 4:0 – TXPRI[4:0] Message Transmit Priority bits
| Value | Description |
|---|---|
11111 |
Highest message priority |
| . . . | |
00000 |
Lowest message priority |