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CHAPTER 23 CAN CONTROLLER
23.6.11
Transmission Cancel Register (TCANR)
When "1" is written to TCANx, this register cancels a pending request for transmission
to the message buffer (x).
At completion of cancellation, TREQx of the transmission request register (TREQR)
becomes "0". Writing "0" to TCANx is ignored.
This is a write only register and its read value is always "0".
■ Transmission Cancel Register (TCANR)
Figure 23.6-14 Configuration of the Transmission Cancel Register (TCANR)
Address:
CAN0: 000075
CAN1: 000085
CAN2: 003575
CAN3: 003585
CAN4: 003595
Address:
CAN0: 000074
CAN1: 000084
CAN2: 003574
CAN3: 003584
CAN4: 003594
[bit15 to bit0] TCAN15 to TCAN0:
484
bit
15
14
13
12
11
H
TCAN15 TCAN14 TCAN13 TCAN12 TCAN11 TCAN10 TCAN9 TCAN8
H
H
W
W
W
W
W
H
H
7
6
5
4
3
bit
H
TCAN7 TCAN6 TCAN5 TCAN4 TCAN3 TCAN2 TCAN1 TCAN0
H
H
W
W
W
W
W
H
H
10
9
8
TCANRn (upper)
Initial value
0 0 0 0 0 0 0 0
W
W
W
2
1
0
TCANRn (lower)
Initial value
0 0 0 0 0 0 0 0
W
W
W
B
B
n = 0, 1, 2, 3, 4
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