Freescale Semiconductor, Inc.
General Description
Pin Assignments
1.5.7 External Filter Capacitor Pin (CGMXFC)
CGMXFC is an external filter capacitor connection for the CGM. See
Section 23. Analog-to-Digital Converter (ADC-15).
1.5.8 Port A Input/Output (I/O) Pins (PTA7–PTA0)
PTA7–PTA0 are general-purpose bidirectional input/output (I/O) port
pins. See Section 20. 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 23. Analog-to-Digital
Converter (ADC-15), and Section 20. Input/Output (I/O) Ports.
1.5.10 Port C I/O Pins (PTC5–PTC0)
PTC5–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 which has a frequency equivalent to the system clock.
See Section 20. Input/Output (I/O) Ports.
1.5.11 Port D I/O Pins (PTD7–PTD0/ATD8)
Port D is an 8-bit special-function port that shares seven of its pins with
the analog-to-digital converter module (ADC-15) and one of its pins with
the timer interface module (TIMA). See Section 22. Timer Interface
Module A (TIMA-6), Section 23. Analog-to-Digital Converter
(ADC-15), and Section 20. Input/Output (I/O) Ports.
1.5.12 Port E I/O Pins (PTE7/SPSCK–PTE0/TxD)
Port E is an 8-bit special function port that shares two of its pins with the
timer interface module (TIMA), four of its pins with the serial peripheral
interface module (SPI), and two of its pins with the serial communication
interface module (SCI). See Section 17. Serial Communications
MC68HC908AS60 — Rev. 1.0
Technical Data
General Description
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