MC912DG128ACPV Freescale Semiconductor, MC912DG128ACPV Datasheet - Page 107

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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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DDRE — Port E Data Direction Register
MC68HC912DT128A — Rev 4.0
MOTOROLA
RESET:
DDE7
Bit 7
0
DDE6
6
0
(R/W), IRQ, and XIRQ. When the associated pin is not used for one
of these specific functions, the pin can be used as general-purpose
I/O. The port E assignment register (PEAR) selects the function of
each pin. DDRE determines the primary direction of each port E pin
when configured to be general-purpose I/O.
Some of these pins have software selectable pull-ups (DBE, LSTRB,
R/W, IRQ and XIRQ). A single control bit enables the pull-ups for all
these pins which are configured as inputs.
This register is not in the map in peripheral mode or expanded modes
when the EME bit is set.
Read and write anytime.
This register determines the primary direction for each port E pin
configured as general-purpose I/O.
PE[1:0] are associated with XIRQ and IRQ and cannot be configured
as outputs. These pins can be read regardless of whether the
alternate interrupt functions are enabled.
This register is not in the map in peripheral mode and expanded
modes while the EME control bit is set.
Read and write anytime.
Freescale Semiconductor, Inc.
For More Information On This Product,
0 = Associated pin is a high-impedance input
1 = Associated pin is an output
DDE5
5
0
Bus Control and Input/Output
Go to: www.freescale.com
DDE4
4
0
DDE3
3
0
DDE2
2
0
Bus Control and Input/Output
1
0
0
Bit 0
0
0
Technical Data
Registers
$0009
107

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