Chapter 1 General Information; Introduction; Features - Motorola M68HC11EVBU User Manual

1.1

INTRODUCTION

This manual provides general information, hardware preparation, installation instructions,
monitor program description, operating instructions, hardware description, and support
information for the M68HC11 Universal Evaluation Board (hereafter referred to as EVBU).
Downloading S-record information is contained in Appendix A. While a listing of the EVBU
monitor program is stored on the diskette supplied with the EVBU (see file buf32.asm). (This file
may be viewed using any text reader capable of handling a 102K file.)
1.2

FEATURES

EVBU features include:
• An economical means of debugging user assembled code and evaluating
MC68HC11A8, E9, 711E9, 811A8, and 811E2 microcontroller unit (MCU) devices
• One-line assembler/disassembler
• Host computer downloading capability
• MC68HC11 MCU based debugging/evaluating circuitry
• MC68HC68T1 real-time clock + RAM with serial interface peripheral circuitry
• RS-232C compatible terminal I/O port
• Wire-wrap area for custom interfacing
• Single (+5 Vdc) input power source requirements
M68HC11EVBU/D
CHAPTER 1
GENERAL INFORMATION
GENERAL INFORMATION
1-1