mc68hc912dg128 Freescale Semiconductor, Inc, mc68hc912dg128 Datasheet - Page 56
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mc68hc912dg128
Manufacturer Part Number
mc68hc912dg128
Description
M68hc12 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC912DG128.pdf
(452 pages)
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Pinout and Signal Descriptions
3.5.10 Port AD1
3.5.11 Port AD0
Technical Data
56
configured for output. On reset the DDRIB bits are cleared and the
corresponding pin is configured for input.
When the PUPIB bit in the IBPURD register is set, all input pins are
pulled up internally by an active pull-up device. Pull-ups are disabled
after reset, except for input ports 0 through 3, which are always on
regardless of PUPIB bit.
Setting the RDPIB bit in the IBPURD register configures all port IB
outputs to have reduced drive levels. Levels are at normal drive
capability after reset. The IBPURD register can be read or written
anytime after reset. Refer to section
This port is an analog input interface to the analog-to-digital subsystem
and used for general-purpose input. When analog-to-digital functions
are not enabled, the port has eight general-purpose input pins,
PAD1[7:0]. The ADPU bit in the ATD1CTL2 register enables the A/D
function.
Port AD1 pins are inputs; no data direction register is associated with this
port. The port has no resistive input loads and no reduced drive controls.
Refer to
This port is an analog input interface to the analog-to-digital subsystem
and used for general-purpose input. When analog-to-digital functions are
not enabled, the port has eight general-purpose input pins, PAD0[7:0].
The ADPU bit in the ATD0CTL2 register enables the A/D function.
Port AD0 pins are inputs; no data direction register is associated with this
port. The port has no resistive input loads and no reduced drive controls.
Refer to
Freescale Semiconductor, Inc.
For More Information On This Product,
MSCAN
MSCAN
Pinout and Signal Descriptions
Go to: www.freescale.com
Controller.
Controller.
Inter-IC
Bus.
MC68HC912DG128 — Rev 3.0
MOTOROLA
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