MC68HC908LB8_05 Datasheet, PDF (22/234 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

General Description
Pin
Name
PTA6
PTB0
PTB1
PTB2
PTB3
PTB4
PTB5
PTB6
PTB7
PTC0
PTC1
PTC2
Table 1-1. Pin Functions (Continued)
Description
PTA6 — General purpose I/O port
KBI6 — Keyboard interrupt input 6
TCH0 — Timer Channel 0 I/O
ADC5 — A/D channel 5 input
PTB0 — General purpose I/O port
TOP — High resolution PWM output
PTB1 — General purpose I/O port
BOT — High resolution PWM output
PTB2 — General purpose I/O port
FAULT — High resolution PWM fault input (switchable between PTB2 and PTB7)
PTB3 — General purpose I/O port
PWM0 — Pulse-width modulator output 0
PTB4 — General purpose I/O port
PWM1 — Pulse-width modulator output 1
PTB5 — General purpose I/O port
V+ — Op amp/comparator input
PTB6 — General purpose I/O port
V– — Op amp/comparator input
PTB7 — General purpose I/O port
V_OUT — Op amp/comparator output
ADC6 — A/D channel 6 input
FAULT — High resolution PWM fault input (switchable between PTB2 and PTB7)
PTC0 — General purpose I/O port
OSC1 — XTAL, RC, or external oscillator input
PTC1 — General purpose I/O port
OSC2 — XTAL oscillator output (XTAL option only)
RC or internal oscillator output (OSC2EN = 1 in PTAPUE register)
PTC2 — General purpose input port
SHTDWN — High resolution PWM input
IRQ — External interrupt with programmable pullup and Schmitt trigger
Input/Output
Input/Output
Input
Input/Output
Input
Input/Output
Output
Input/Output
Output
Input/Output
Input
Input/Output
Output
Input/Output
Output
Input/Output
Input
Input/Output
Input
Input/Output
Output
Input
Input
Input/Output
Input
Input/Output
Output
Output
Input
Input
Input
1.6 Pin Function Priority
Table 1-2 is meant to resolve the priority if multiple functions are enabled on a single pin.
NOTE
Upon reset all pins come up as input ports regardless of the priority table.
MC68HC908LB8 Data Sheet, Rev. 1
22
Freescale Semiconductor