mc9s12hz256v2 Freescale Semiconductor, Inc, mc9s12hz256v2 Datasheet - Page 350

• Manufacturer Part Number: mc9s12hz256v2
• Description: Hcs12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 12 Freescale’s Scalable Controller Area Network (MSCANV2)
12.3.2.10 MSCAN Transmitter Message Abort Acknowledge Register (CANTAAK)
The CANTAAK register indicates the successful abort of a queued message, if requested by the
appropriate bits in the CANTARQ register.
Read: Anytime
Write: Unimplemented for ABTAKx flags
350
ABTAK[2:0]
Field
2:0
Reset:
W
R
Figure 12-11. MSCAN Transmitter Message Abort Acknowledge Register (CANTAAK)
Abort Acknowledge — This flag acknowledges that a message was aborted due to a pending abort request
from the CPU. After a particular message buffer is flagged empty, this flag can be used by the application
software to identify whether the message was aborted successfully or was sent anyway. The ABTAKx flag is
cleared whenever the corresponding TXE flag is cleared.
0 The message was not aborted.
1 The message was aborted.
The CANTAAK register is held in the reset state when the initialization
mode is active (INITRQ = 1 and INITAK = 1).
0
0
7
= Unimplemented
Table 12-16. CANTAAK Register Field Descriptions
6
0
0
MC9S12HZ256 Data Sheet, Rev. 2.05
0
0
5
NOTE
4
0
0
Description
0
0
3
ABTAK2
2
0
Freescale Semiconductor
ABTAK1
0
1
ABTAK0
0
0