HD6417750RF240V Datasheet, PDF (431/606 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 15 Controller Area Network (HCAN)
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
Initial Value R/W
Description
15 ABACK7
0
14 ABACK6
0
13 ABACK5
0
12 ABACK4
0
11 ABACK3
0
10 ABACK2
0
9
ABACK1
0
8
—
0
7
ABACK15
0
6
ABACK14
0
5
ABACK13
0
4
ABACK12
0
3
ABACK11
0
2
ABACK10
0
1
ABACK9
0
0
ABACK8
0
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
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.
Note: * Only 1 can be written to clear the flag.
Rev. 7.00 Sep. 11, 2009 Page 395 of 566
REJ09B0211-0700