MC912DG128ACPV Freescale Semiconductor, MC912DG128ACPV Datasheet - Page 317

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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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IBPURD — Pull-Up and Reduced Drive for Port IB
PORTIB — Port Data IB Register
MC68HC912DT128A — Rev 4.0
MOTOROLA
RESET:
RESET:
IIC
PIB7
Bit 7
Bit 7
SCL
0
0
-
Read and write anytime
RDPIB - Reduced Drive of Port IB
PUPIB - Pull-Up Port IB Enable
Read and write anytime.
IIC functions SCL and SDA share port IB pins 7 and 6 and take
precedence over the general-purpose port when IIC is enabled. The
SCL and SDA output buffers behave as open-drain outputs.
When port is configured as input, a read will return the pin level. Port bits
5 through 0 have internal pull ups when configured as inputs so they will
read ones.
When configured as output, a read will return the latched output data.
Port bits 5 through 0 will read the last value written. A write will drive
associated pins only if configured for output and IIC is not enabled.
Port bits 5 through 0 do not have available external pins for
MC68HC912DT128A.
PIB6
SDA
6
0
0
6
-
Freescale Semiconductor, Inc.
For More Information On This Product,
0 = All port IB output pins have full drive enabled.
1 = All port IB output pins have reduced drive capability.
0 = Port IB pull-ups are disabled.
1 = Enable pull-up devices for port IB input pins [7:6]. Pull-ups for
port IB input pins [5:0] are always enabled.
PIB5
5
0
0
5
-
-
Go to: www.freescale.com
RDPIB
Inter IC Bus
PIB4
4
0
4
-
-
PIB3
3
3
0
0
-
-
PIB2
2
2
0
0
-
-
PIB1
1
1
0
0
-
-
IIC Register Descriptions
PUPIB
PIB0
Bit 0
Bit 0
0
-
-
Technical Data
Inter IC Bus
$00E5
$00E6
317

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