MC68HC705P9 Datasheet, PDF (29/160 Pages) Motorola, Inc – HCMOS Microcontroller Unit

2.3.4 IRQ/V_PP
2.3.5 PA7–PA0
Freescale Semiconductor, Inc.
Pin Descriptions
Pin Functions
The IRQ/V_PP pin has the following functions:
• Applying asynchronous external interrupt signals
• Applying V_PP, the EPROM/OTPROM programming voltage
PA7–PA0 are general-purpose bidirectional I/O port pins. Use data
direction register A to configure port A pins as inputs or outputs.
2.3.6 PB7/SCK–PB5/SDO
Port B is a 3-pin bidirectional I/O port that shares its pins with the SIOP.
Use data direction register B to configure port B pins as inputs or
outputs.
2.3.7 PC7/V_RH–PC0
Port C is an 8-pin bidirectional I/O port that shares five of its pins with the
ADC. Use data direction register C to configure port C pins as inputs or
outputs.
2.3.8 PD7/TCAP and PD5
Port D is a 2-pin I/O port that shares one of its pins with the
capture/compare timer. Use data direction register D to configure port D
pins as inputs or outputs.
2.3.9 TCMP
The TCMP pin is the output compare pin for the capture/compare timer.
MC68HC705P9 — Rev. 4.0
MOTOROLA
Pin Descriptions
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Technical Data
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