mc9s12q128 Freescale Semiconductor, Inc, mc9s12q128 Datasheet - Page 305
mc9s12q128
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mc9s12q128
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Hcs12 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC9S12Q128.pdf
(644 pages)
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10.3.2.10 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
Freescale Semiconductor
Module Base + 0x0009
ABTAK[2:0]
Field
2:0
Reset:
W
R
Figure 10-13. 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 10-14. CANTAAK Register Field Descriptions
6
0
0
0
0
5
MC9S12Q128
Chapter 10 Freescale’s Scalable Controller Area Network (S12MSCANV2)
Rev 1.09
NOTE
4
0
0
Description
0
0
3
ABTAK2
2
0
ABTAK1
0
1
ABTAK0
0
0
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