MC912DG128ACPV Freescale Semiconductor, MC912DG128ACPV Datasheet - Page 80

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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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Operating Modes
5.3.1 Normal Operating Modes
Technical Data
80
BKGD
1
1
1
1
0
0
0
0
MODB
0
0
1
1
0
0
1
1
MODA
There are two basic types of operating modes:
A system development and debug feature, background debug mode
(BDM), is available in all modes. In special single-chip mode, BDM is
active immediately after reset.
These modes provide three operating configurations. Background
debug is available in all three modes, but must first be enabled for some
operations by means of a BDM background command, then activated.
0
1
0
1
0
1
0
1
Freescale Semiconductor, Inc.
For More Information On This Product,
Normal Single-Chip Mode — There are no external address and
data buses in this mode. The MCU operates as a stand-alone
device and all program and data resources are on-chip. External
port pins normally associated with address and data buses can be
used for general-purpose I/O.
Normal Expanded Wide Mode — This is a normal mode of
operation in which the expanded bus is present with a 16-bit data
bus. Ports A and B are used for the 16-bit multiplexed
address/data bus.
Reserved (Forced to Peripheral)
Normal modes — some registers and bits are protected
against accidental changes.
Special modes — allow greater access to protected control
registers and bits for special purposes such as testing and
emulation.
Table 5-1. Mode Selection
Normal Expanded Narrow
Special Expanded Narrow
Normal Expanded Wide
Special Expanded Wide
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Normal Single Chip
Special Single Chip
Special Peripheral
Operating Modes
Mode
ADDR/DATA
ADDR/DATA
ADDR/DATA
ADDR/DATA
ADDR/DATA
G.P. I/O
G.P. I/O
Port A
MC68HC912DT128A — Rev 4.0
ADDR/DATA
ADDR/DATA
ADDR/DATA
G.P. I/O
G.P. I/O
Port B
ADDR
ADDR
MOTOROLA

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