MC9S12XDT512CAA Freescale, MC9S12XDT512CAA Datasheet - Page 436
MC9S12XDT512CAA
Manufacturer Part Number
MC9S12XDT512CAA
Description
Manufacturer
Freescale
Datasheet
1.MC9S12XDT512CAA.pdf
(1348 pages)
Specifications of MC9S12XDT512CAA
Cpu Family
HCS12
Device Core Size
16b
Frequency (max)
40MHz
Interface Type
CAN/I2C/SCI/SPI
Total Internal Ram Size
32KB
# I/os (max)
59
Number Of Timers - General Purpose
12
Operating Supply Voltage (typ)
2.5/5V
Operating Supply Voltage (max)
2.75/5.5V
Operating Supply Voltage (min)
2.35/3.15V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
80
Package Type
PQFP
Program Memory Type
Flash
Program Memory Size
512KB
Lead Free Status / RoHS Status
Compliant
Available stocks
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Quantity
Price
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Part Number:
MC9S12XDT512CAA
Manufacturer:
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Quantity:
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Chapter 10 Freescale’s Scalable Controller Area Network (S12MSCANV3)
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
10.3.2.11 MSCAN Transmit Buffer Selection Register (CANTBSEL)
The CANTBSEL register allows the selection of the actual transmit message buffer, which then will be
accessible in the CANTXFG register space.
436
ABTAK[2:0]
Field
2:0
Reset:
Reset:
W
W
R
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
0
0
7
7
Figure 10-14. MSCAN Transmit Buffer Selection Register (CANTBSEL)
= Unimplemented
= Unimplemented
Table 10-14. CANTAAK Register Field Descriptions
0
0
0
0
6
6
MC9S12XDP512 Data Sheet, Rev. 2.21
0
0
0
0
5
5
NOTE
0
0
0
0
4
4
Description
3
0
0
3
0
0
ABTAK2
TX2
0
0
2
2
Freescale Semiconductor
ABTAK1
TX1
0
0
1
1
ABTAK0
TX0
0
0
0
0
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