MC68HC08AZ32A Datasheet, PDF (155/456 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Technical Data — MC68HC08AZ32A
Section 11. Monitor ROM (MON)
11.1 Contents
11.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
11.3 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
11.4 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . .156
11.4.1 Entering monitor mode . . . . . . . . . . . . . . . . . . . . . . . . . .158
11.4.2 Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
11.4.3 Echoing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
11.4.4 Break Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
11.4.4.1 Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
11.4.5 Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
11.4.6 Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
11.2 Introduction
This section describes the monitor ROM (MON08). The monitor ROM
allows complete testing of the MCU through a single-wire interface with
a host computer.
11.3 Features
Features of the monitor ROM include the following:
• Normal User-Mode Pin Functionality
• One Pin Dedicated to Serial Communication Between Monitor
ROM and Host Computer
• Standard Mark/Space Non-Return-to-Zero (NRZ) Communication
with Host Computer
• Up to 28.8K Baud Communication with Host Computer
MC68HC08AZ32A — Rev 1.0
MOTOROLA
Monitor ROM (MON)
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Go to: www.freescale.com
Technical Data
155