Motorola 68HC12 User Manual

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Brand: Motorola

Category: Computer Hardware

Type: Operation & user’s manual for Motorola 68HC12

Pages: 31

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ECSE-4790 Microprocessor Systems Design
Motorola 68HC12 User's Manual
Lee Rosenberg
Electrical and Computer Systems Engineering
Rensselaer Polytechnic Institute
Revision 1.1
8/10/00
Table of Contents: page
1. Introduction 2
2. Basic Programming notes for the 68HC12 3
3. D-Bug 12 Monitor Program 4
4. 68HC12 Hardware 7
a) Ports 7
b) A/D Converter 8
c) Timer Functions 12
i) Timer Output Compare 13
ii) Output Compare 7 14
iii) Timer Compare Force Register 15
iv) Input Capture 15
5. Interrupt Service Routines 16
a) Overview 16
b) Interrupt Priority 17
c) Real Time Interrupt 18
d) Timer Overflow Interrupt 19
e) Pulse Accumulator Edge Triggered Interrupt 20
f) Pulse Accumulator Overflow Triggered Interrupt 22
g) Output Compare Interrupt 23
h) Input Capture Interrupt 24
i) A/D Converter Interrupt 25
j) IRQ Interrupt 26
k) Port H Key Wakeup Interrupt 27
l) Port J Key Wakeup Interrupt 28