h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 576

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 15 Controller Area Network (HCAN)
15.2.8
The abort acknowledge register (ABACK) is a 16-bit readable/writable register containing status
flags that indicate normal cancellation (aborting) of a mailbox (buffer) transmit messages.
Note: * Only a write of 1 is permitted, to clear the flag.
Bits 15 to 9 and 7 to 0—Abort Acknowledge Register: These bits indicate that a transmit
message in the corresponding mailbox has been canceled (aborted) normally.
Bit 8—Reserved: This bit always reads 0. The write value should always be 0.
Rev. 5.00 Sep 22, 2005 page 550 of 1136
REJ09B0257-0500
Bit x
ABACKx
0
1
Initial value:
Initial value:
ABACK
Abort Acknowledge Register (ABACK)
Description
[Clearing condition]
Writing 1
Completion of transmit message cancellation for corresponding mailbox
R/W:
R/W:
Bit:
Bit:
ABACK15 ABACK14 ABACK13 ABACK12 ABACK11 ABACK10 ABACK9 ABACK8
ABACK7 ABACK6 ABACK5 ABACK4 ABACK3 ABACK2 ABACK1
R/(W) *
R/(W) *
15
0
7
0
R/(W) *
R/(W) *
14
0
6
0
R/(W) *
R/(W) *
13
0
5
0
R/(W) *
R/(W) *
12
0
4
0
R/(W) *
R/(W) *
11
0
3
0
R/(W) *
R/(W) *
10
0
2
0
R/(W) *
R/(W) *
9
0
1
0
(Initial value)
(x = 15 to 0)
R/(W) *
—
—
8
0
0
0