HD6432621 Hitachi, HD6432621 Datasheet - Page 576

• Manufacturer Part Number: HD6432621
• Description: (HD64F262x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

15.2.7
The transmit acknowledge register (TXACK) is a 16-bit readable/writable register containing
status flags that indicate normal transmission of mailbox (buffer) transmit messages.
Bits 15 to 9 and 7 to 0—Transmit Acknowledge Register (TXACK7 to TXACK1, TXACK15
to TXACK8): These bits indicate that a transmit message in the corresponding HCAN mailbox
has been transmitted normally.
Bit x: TXACKx
0
1
Bit 8—Reserved: This bit always reads 0. The write value should always be 0.
532
Initial value:
Initial value:
TXACK
Note: * Can only be written with 1 for flag clearing.
Transmit Acknowledge Register (TXACK)
R/W:
R/W:
Bit:
Bit:
TXACK15 TXACK14 TXACK13 TXACK12 TXACK11 TXACK10 TXACK9 TXACK8
TXACK7
R/(W) *
R/(W)*
Description
[Clearing condition]
Writing 1
Completion of message transmission for corresponding mailbox
15
0
7
0
TXACK6 TXACK5
R/(W) * R/(W) *
R/(W) * R/(W) *
14
0
6
0
13
0
5
0
TXACK4 TXACK3
R/(W) * R/(W) *
R/(W) * R/(W) *
12
0
4
0
11
0
3
0
TXACK2
R/(W) *
R/(W) *
10
0
2
0
TXACK1
R/(W) *
R/(W) * R/(W) *
9
0
1
0
(Initial value)
—
8
0
R
0
0