
543
15.2.7
Transmit Acknowledge Register (TXACK)
The transmit acknowledge register (TXACK) is a 16-bit readable/writable register containing
status flags that indicate normal transmission of mailbox (buffer) transmit messages.
TXACK
Bit:
15
14
13
12
11
10
9
8
TXACK7
TXACK6
TXACK5
TXACK4
TXACK3
TXACK2
TXACK1
—
Initial value:
0
0
0
0
0
0
0
0
R/W:
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
—
Bit:
7
6
5
4
3
2
1
0
TXACK15 TXACK14 TXACK13 TXACK12 TXACK11 TXACK10 TXACK9
TXACK8
Initial value:
0
0
0
0
0
0
0
0
R/W:
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
R/(W)
*
Note:
*
Only a write of 1 is permitted, to clear the flag.
Bits 15 to 9 and 7 to 0—Transmit Acknowledge Register: These bits indicate that a transmit
message in the corresponding HCAN mailbox has been transmitted normally.
Bit x: TXACKx
Description
0
[Clearing condition]
Writing 1
(Initial value)
1
Completion of message transmission for corresponding mailbox
(x = 15 to 0)
Bit 8—Reserved: This bit always reads 0. The write value should always be 0.
Содержание H8S/2645
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