MC68HC908LB8_05 Datasheet, PDF (53/234 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

Chapter 4
Op Amp/Comparator Module
4.1 Introduction
This section describes the functionality of the op amp/comparator.
4.2 Features
Features of the op amp/comparator include:
• Software enable/disable
• Op amp and comparator modes for optimized performance
• Shared output pin with ADC input pin and PWM fault pin to allow a op amp/comparator circuit to
be inputs to these modules
4.3 Pin Name Conventions
The op amp/comparator shares two input pins and an output pin with the port B input/output (I/O). The full
names of the op amp/comparator pins are listed in
Table 4-1. Note that the generic pin names appear in the text that follows.
Table 4-1. Pin Name Conventions
Generic Pin Name
V_OUT
V–
V+
Full Pin Name
PTB7/V_OUT/ADC6/FAULT
PTB6/V–
PTB5/V+
MC68HC908LB8 Data Sheet, Rev. 1
Freescale Semiconductor
53