MC912DG128ACPV Freescale Semiconductor, MC912DG128ACPV Datasheet - Page 361

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MC912DG128ACPV

Manufacturer Part Number
MC912DG128ACPV
Description
IC MCU 128K FLASH 8MHZ 112-LQFP
Manufacturer
Freescale Semiconductor
Series
HC12r
Datasheet

Specifications of MC912DG128ACPV

Core Processor
CPU12
Core Size
16-Bit
Speed
8MHz
Connectivity
CAN, I²C, SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
69
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 16x8/10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
112-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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18.13.9 msCAN12 Transmitter Control Register (CTCR)
MC68HC912DT128A — Rev 4.0
MOTOROLA
CTCR
$0107
RESET
W
R
NOTE:
NOTE:
NOTE:
Bit 7
0
0
The CTFLG register is held in the reset state if the SFTRES bit in
CMCR0 is set.
ABTRQ2 – ABTRQ0 — Abort Request
The software must not clear one or more of the TXE flags in CTFGL and
simultaneously set the respective ABTRQ bit(s).
TXEIE2 – TXEIE0 — Transmitter Empty Interrupt Enable
The CTCR register is held in the reset state if the SFTRES bit in CMCR0
is set.
ABTRQ2
The CPU sets this bit to request that an already scheduled message
buffer (TXE = 0) shall be aborted. The msCAN12 will grant the
request when the message is not already under transmission. When
a message is aborted the associated TXE and the abort acknowledge
flag (ABTAK, see
be set and an TXE interrupt will occur if enabled. The CPU can not
reset ABTRQx. ABTRQx is reset implicitly whenever the associated
TXE flag is set.
Freescale Semiconductor, Inc.
6
0
For More Information On This Product,
0 = The associated message buffer is full (loaded with a message
1 = The associated message buffer is empty (not scheduled).
0 = No abort request.
1 = Abort request pending.
0 = No interrupt will be generated from this event.
1 = A transmitter empty (transmit buffer available for transmission)
due for transmission).
event will result in a transmitter empty interrupt.
ABTRQ1
Go to: www.freescale.com
5
0
MSCAN Controller
msCAN12 Transmitter Flag Register
ABTRQ0
4
0
3
0
0
Programmer’s Model of Control Registers
TXEIE2
2
0
TXEIE1
1
0
MSCAN Controller
(CTFLG)) will
Technical Data
TXEIE0
Bit 0
0
361

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