MC68HC705V12CFN MOTOROLA [Motorola, Inc], MC68HC705V12CFN Datasheet - Page 33

• Manufacturer Part Number: MC68HC705V12CFN
• Description: The Motorola microcontroller
• Manufacturer: MOTOROLA [Motorola, Inc]

1.7.10 PC0–PC7
1.7.11 PD0–PD4/AD0–AD4
1.7.12 TXP and RXP
1.7.13 I
MC68HC705V12
MOTOROLA
MAX
—
Rev. 3.0
PB4 and PB5 are shared with the PWM output pins (PWMA and
PWMB). See
details on the operation of the PWMs.
These eight I/O lines comprise port C. The state of any pin is software
programmable and all port C lines are configured as inputs during
power-on or reset. All eight pins are connected via an internal gate to the
IRQ interrupt function. When the IRQ interrupt function is enabled, all the
port C pins will act as negative edge-sensitive IRQ sources. See
Section 7. Parallel Input/Output (I/O)
When the A/D converter is disabled, PD0–PD4 are general-purpose
input pins. The A/D converter is disabled upon exiting from reset. When
the A/D converter is enabled, one of these pins is the analog input to the
A/D converter. The A/D control register contains control bits to direct
which of the analog inputs are to be converted at any one time. A digital
read of this pin when the A/D converter is enabled results in a read of
logical 0 from the selected analog pin. A digital read of the remaining
pins gives their correct (digital) values. See
Analog-to-Digital (A/D) Converter
the A/D subsystem.
These pins provide the I/O interface for the byte data link controller
(BDLC) subsystem. See
Digital (BDLC–D)
This pin is used to define the maximum coil current in the gauges by
connecting a resistor from this pin (R
15.7 Coil Sequencer and
Section 11. Pulse Width Modulators (PWMs)
General Description
for more details on the operation of the BDLC.
Section 14. Byte Data Link Controller –
Control.
for more details on the operation of
MAX
for more details on the I/O ports.
) to ground as shown in
Section 13.
Functional Pin Descriptions
Advance Information
General Description
for more
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