MC912DG128AMPVE Freescale Semiconductor, MC912DG128AMPVE Datasheet - Page 57

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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3.5.2 Port B
3.5.3 Port E
MC68HC912DT128A — Rev 4.0
MOTOROLA
Setting the RDPA bit in register RDRIV causes all port A outputs to have
reduced drive level. RDRIV can be written once after reset. RDRIV is not
in the address map in peripheral mode. Refer to
Input/Output.
Port B pins are used for address and data in expanded modes. When
this port is not used for external access such as in single-chip mode,
these pins can be used as general purpose I/O. The port data register is
not in the address map during expanded and peripheral mode operation.
When it is in the map, port B can be read or written at anytime.
Register DDRB determines whether each port B pin is an input or output.
DDRB is not in the address map during expanded and peripheral mode
operation. Setting a bit in DDRB makes the corresponding bit in port B
an output; clearing a bit in DDRB makes the corresponding bit in port B
an input. The default reset state of DDRB is all zeroes.
When the PUPB bit in the PUCR register is set, all port B input pins are
pulled-up internally by an active pull-up device. PUCR is not in the
address map in peripheral mode.
Setting the RDPB bit in register RDRIV causes all port B outputs to have
reduced drive level. RDRIV can be written once after reset. RDRIV is not
in the address map in peripheral mode. Refer to
Input/Output.
Port E pins operate differently from port A and B pins. Port E pins are
used for bus control signals and interrupt service request signals. When
a pin is not used for one of these specific functions, it can be used as
general-purpose I/O. However, two of the pins (PE[1:0]) can only be
used for input, and the states of these pins can be read in the port data
register even when they are used for IRQ and XIRQ.
The PEAR register determines pin function, and register DDRE
determines whether each pin is an input or output when it is used for
Freescale Semiconductor, Inc.
For More Information On This Product,
Pinout and Signal Descriptions
Go to: www.freescale.com
Pinout and Signal Descriptions
Bus Control and
Bus Control and
Technical Data
Port Signals
57

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