mc68hc05p9a Freescale Semiconductor, Inc, mc68hc05p9a Datasheet - Page 18

• Manufacturer Part Number: mc68hc05p9a
• Description: Hcmos Microcontroller Unit
• Manufacturer: Freescale Semiconductor, Inc

Pin Descriptions
PA7–PA0
PB7/SCK–
PB5/SDO
PC7/V
PD7/TCAP and PD5
TCMP
18
RH
–PC0
PA7–PA0 are general-purpose bidirectional I/O port pins. Use data
direction register A to configure port A pins as inputs or outputs.
PA7–PA0 also have mask selectable interrupt/pullup options.
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.
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.
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.
The TCMP pin is the output compare pin for the capture/compare timer.
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
Pin Descriptions
10-mc68hc05p9a
MOTOROLA