Abort Acknowledge Register (Aback) - Renesas H8S Series Hardware Manual

15.3.8

Abort Acknowledge Register (ABACK)

The abort acknowledge register (ABACK) is a 16-bit register containing status flags that indicate
the normal cancellation (aborting) of mailbox (buffer) transmit messages.
Bit Bit Name
15 ABACK7
14 ABACK6
13 ABACK5
12 ABACK4
11 ABACK3
10 ABACK2
9 ABACK1
8 —
7 ABACK15
6 ABACK14
5 ABACK13
4 ABACK12
3 ABACK11
2
ABACK10
1 ABACK9
0 ABACK8
Note: * Only 1 can be written to clear the flag.
Initial Value R/W
R/(W) *
0
R/(W) *
0
R/(W) *
0
R/(W) *
0
R/(W) *
0
R/(W) *
0
R/(W) *
0
0 R
R/(W) *
0
R/(W) *
0
R/(W) *
0
R/(W) *
0
R/(W) *
0
R/(W) *
0
R/(W) *
0
R/(W) *
0
Section 15 Controller Area Network (HCAN)
Description
These bits are status flags that indicate error-free
cancellation (abortion) of the transmit message in
the corresponding mailboxes 1 to 15. When the
message in mailbox n (n = 1 to 15) has been
canceled error-free, ABACKn is set to 1.
[Setting condition]
•
Completion of transmit message cancellation
for corresponding mailbox
[Clearing condition]
•
Writing 1
Bit 8 is reserved. This bit is always read as 0.
The write value should always be 0.
Rev. 6.00 Mar 15, 2006 page 397 of 570
REJ09B0211-0600