h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 471

• Manufacturer Part Number: h8s-2649
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

14.3.7
TXACK is a 16-bit register containing status flags that indicate the normal transmission of
mailbox (buffer) transmit messages.
Note:
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit Name
TXACK7
TXACK6
TXACK5
TXACK4
TXACK3
TXACK2
TXACK1

TXACK15
TXACK14
TXACK13
TXACK12
TXACK11
TXACK10
TXACK9
TXACK8
*
Transmit Acknowledge Register (TXACK)
Only 1 can be written to clear the flag.
Initial
Value
0
0
0
0
0
0
0
0
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
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
These bits are status flags that indicate error-free
transmission of the transmit message in the
corresponding mailboxes 1 to 15. When the message in
mailbox n (n = 1 to 15) has been transmitted error-free,
TXACKn is set to 1.
[Setting condition]
•
[Clearing condition]
•
Bit 8 is reserved. This bit is always read as 0. The write
value should always be 0.
Description
Completion of message transmission for
corresponding mailbox
Writing 1
Section 14 Controller Area Network (HCAN)
Rev. 2.00 Dec. 05, 2005 Page 433 of 724
REJ09B0200-0200