MC912DG128ACPV Freescale Semiconductor, MC912DG128ACPV Datasheet - Page 119

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

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

8.7 Operation
8.7.1 Bootstrap Operation Single-Chip Mode
8.7.2 Normal Operation
8.7.3 Program/Erase Operation
MC68HC912DT128A — Rev 4.0
MOTOROLA
PGM — Program Control
The Flash EEPROM can contain program and data. On reset, it can
operate as a bootstrap memory to provide the CPU with internal
initialization information during the reset sequence.
After reset, the CPU controlling the system will begin booting up by
fetching the first program address from address $FFFE.
The Flash EEPROM allows a byte or aligned word read in one bus cycle.
Misaligned word read require an additional bus cycle. The Flash
EEPROM array responds to read operations only. Write operations are
ignored.
An unprogrammed Flash EEPROM bit has a logic state of one. A bit
must be programmed to change its state from one to zero. Erasing a bit
returns it to a logic one. The Flash EEPROM has a minimum
program/erase life of 100 cycles. Programming or erasing the Flash
EEPROM is accomplished by a series of control register writes.
The Flash EEPROM must be completely erased prior to programming
final data values.
This bit configures the memory for program operation. PGM is
interlocked with the ERAS bit such that both bits cannot be equal to 1
or set to1 at the same time.
Freescale Semiconductor, Inc.
For More Information On This Product,
0 = Program operation is not selected.
1 = Program operation selected.
Go to: www.freescale.com
Flash Memory
Technical Data
Flash Memory
Operation
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