MC68HC08AS20 Datasheet, PDF (34/386 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

1.5.7 External Filter Capacitor Pin (CGMXFC)
CGMXFC is an external filter capacitor connection for the CGM. (See
Section 8. Clock Generator Module (CGM).)
1.5.8 Port A Input/Output (I/O) Pins (PTA7–PTA0)
PTA7–PTA0 are general-purpose bidirectional I/O port pins. (See
Section 15. Input/Output (I/O) Ports.)
1.5.9 Port B I/O Pins (PTB7/ATD7–PTB0/ATD0)
Port B is an 8-bit special function port that shares all eight pins with the
analog-to-digital converter (ADC). (See Section 19. Analog-to-Digital
Converter (ADC) and Section 15. Input/Output (I/O) Ports.)
1.5.10 Port C I/O Pins (PTC4–PTC0)
PTC4–PTC3 and PTC1–PTC0 are general-purpose bidirectional I/O
port pins. PTC2/MCLK is a special function port that shares its pin with
the system clock. (See Section 15. Input/Output (I/O) Ports.)
1.5.11 Port D I/O Pins (PTD6/ATD14/TCLKA–PTD0/ATD8)
Port D is a 7-bit special function port that shares all of its pins with the
analog-to-digital converter module (ADC) and one of its pins with the
timer interface module (TIM). (See Section 16. Timer Interface (TIM),
Section 19. Analog-to-Digital Converter (ADC), and
Section 15. Input/Output (I/O) Ports.)
Advance Information
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MC68HC08AS20 —Rev. 4.1
Freescale Semiconductor