MC912DG128ACPV Freescale Semiconductor, MC912DG128ACPV Datasheet - Page 81

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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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5.3.2 Special Operating Modes
MC68HC912DT128A — Rev 4.0
MOTOROLA
There are three special operating modes that correspond to normal
operating modes. These operating modes are commonly used in factory
testing and system development. In addition, there is a special
peripheral mode, in which an external master, such as an I.C. tester, can
control the on-chip peripherals.
Freescale Semiconductor, Inc.
For More Information On This Product,
Normal Expanded Narrow Mode — This is a normal mode of
operation in which the expanded bus is present with an 8-bit data
bus. Ports A and B are used for the16-bit address bus. Port A is
used as the data bus, multiplexed with addresses. In this mode,
16-bit data is presented one byte at a time, the high byte followed
by the low byte. The address is automatically incremented on the
second cycle.
Special Single-Chip Mode — This mode can be used to force the
MCU to active BDM mode to allow system debug through the
BKGD pin. There are no external address and data buses in this
mode. The MCU operates as a stand-alone device and all
program and data space are on-chip. External port pins can be
used for general-purpose I/O.
Special Expanded Wide Mode — This mode can be used for
emulation of normal expanded wide mode and emulation of
normal single-chip mode. Ports A and B are used for the 16-bit
multiplexed address/data bus.
Special Expanded Narrow Mode — This mode can be used for
emulation of normal expanded narrow mode. Ports A and B are
used for the16-bit address bus. Port A is used as the data bus,
multiplexed with addresses. In this mode, 16-bit data is presented
one byte at a time, the high byte followed by the low byte. The
address is automatically incremented on the second cycle.
Special Peripheral Mode — The CPU is not active in this mode.
An external master can control on-chip peripherals for testing
purposes. It is not possible to change to or from this mode without
going through reset. Background debugging should not be used
Go to: www.freescale.com
Operating Modes
Operating Modes
Operating Modes
Technical Data
81

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