MC912DG128AMPVE Freescale Semiconductor, MC912DG128AMPVE Datasheet - Page 378

IC MCU 128K FLASH 8MHZ 112-LQFP

MC912DG128AMPVE

Manufacturer Part Number
MC912DG128AMPVE
Description
IC MCU 128K FLASH 8MHZ 112-LQFP
Manufacturer
Freescale Semiconductor
Series
HC12r
Datasheet

Specifications of MC912DG128AMPVE

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 ~ 125°C
Package / Case
112-LQFP
Processor Series
HC912D
Core
HC12
Data Bus Width
16 bit
Data Ram Size
8 KB
Interface Type
CAN/I2C/SCI/SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
69
Number Of Timers
8
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Minimum Operating Temperature
- 40 C
On-chip Adc
2 (8-ch x 10-bit)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Analog-to-Digital Converter
Technical Data
378
AFFC — ATD Fast Conversion Complete Flag Clear
ASWAI — ATD Stop In Wait Mode
This bit provides program on/off control over the ATD module allowing
reduced MCU power consumption when the ATD is not being used.
When reset to zero, the ADPU bit aborts any conversion sequence in
progress. Because the analog electronics is turned off when powered
down, the ATD requires a recovery time period when ADPU bit is
enabled.
Operating normally means that the status register must be read after
the conversion complete flag has been set before that flag can be
reset. After the status register read, a read to the associated result
register causes its conversion complete flag in the status register to be
cleared. The SCF flag is cleared when a new conversion sequence is
begun by writing to control register ATDCTL4/5. In applications where
the ATD module is polled to determine if an ATD conversion is
complete, this feature provides a convenient way of clearing the status
register conversion complete flag.
In applications where ATD interrupts are used to signal conversion
completion, the precondition of reading the status register can be
eliminated using fast conversion complete flag clear mode. In this
mode, any access to a result register will cause its associated
conversion complete flag in the status register to be cleared. The SCF
flag is cleared after the first (any) result register is read.
The wait function allows the MCU to selectively halt and power down
the ATD module. If the ASWAI bit is set and the MCU, then the ATD
module immediately halts operation and powers down. When WAIT is
Freescale Semiconductor, Inc.
For More Information On This Product,
0 = ATD flag clearing operates normally (read the status register
1 = Changes all ATD conversion complete flags to a fast clear
0 = ATD continues to run when the MCU is in wait mode
1 = ATD stops to save power when the MCU is in wait mode
before reading the result register to clear the associated CCF
bit).
sequence. Any access to a result register (ATD0–7) will cause
the associated CCF flag to clear automatically if it was set at
the time.
Analog-to-Digital Converter
Go to: www.freescale.com
MC68HC912DT128A — Rev 4.0
MOTOROLA

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