Lexicon MC-12 V2.0 - SERIAL COMMUNICATIONS PROTOCOL DEFINITION REV 1-3 User Manual

Lexicon, Inc.
MC-12 Serial Communications Protocol Printed on: 10/10/02
© 2002 Lexicon, Inc. All rights reserved. 1 of 92
Serial Communications Protocol Definition
Project: MC-12/MC-12B
Updated: October 10, 2002
Software Version 2.0
Protocol Version:
Major rev 1
Minor rev 3
Lexicon, Inc.
3 Oak Park
Bedford, MA 01730-1441
(781) 280-0300

Lexicon MC-12 V2.0 - SERIAL COMMUNICATIONS PROTOCOL DEFINITION REV 1-3 Specifications

General

Brand	Lexicon
Model	MC-12 V2.0 - SERIAL COMMUNICATIONS PROTOCOL DEFINITION REV 1-3
Category	Computer Hardware
Language	English

Summary

1 Documents

1.1 Change List

Detailed list of revisions and updates made to the protocol document.

2 Definitions

2.1 Protocol Version Cross-reference

Explains how MC-12 and MC-1 references apply to different Lexicon products.

3 Abbreviations

4 General Description

5 Physical Layer

5.1 DB-9 RS232 Connector

Details the wiring and pinout for the DB-9 RS232 serial connection for the MC-12.

5.2 Serial Port Driver

Specifies the MC-12 serial port settings: baud rate, parity, data bits, and stop bits.

5.3 Errors

Describes physical layer error detection (parity, framing, overrun) and handling.

5.4 MC-12 Receive Buffer

Explains the MC-12's internal receive buffer and its behavior when full.

5.5 MC-12 Hardware Verification

Outlines the procedure to test the RS232 port hardware functionality using a wraparound plug.

6 Data Link Layer

6.1 Errors

Details error conditions (invalid packet, timeout) and MC-12 responses for the data link layer.

7 Application Layer

7.1 MC-12 Asynchronous Notification Packets

Covers MC-12 notifications for system status changes like power on, standby, or parameter updates.