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ABC Office DC-2, MC-1 5 Physical Layer 5.1 DB-9 RS232 Connector, 5.2 Serial Port Driver

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Lexicon, Inc.

DC-2/MC-1 Serial Communications Protocol Printed on: 10/19/00

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The DC-2/MC-1 uses simple notification, command, response and acknowledgment packets to have

communication transactions with a given HOST. This protoco l is designed for point to point

communication between a HOST and DC-2/MC-1. The DC-2/MC-1 Protocol is a 3 layered system. The

DC-2/MC-1 serial protocol allows for the DC-2/MC-1, or the HOST to initiate a communication

transaction. Most transactions are initiated by the HOST. DC-2/MC-1 then responds to the HOST

command with either a response or acknowledgment packet. There are a few asynchronous notifications

that DC-2/MC-1 initiates indicating system changes. Each transaction initiated must wait for a

corresponding response before initiating the next transmission.

The 3 protocol layers are: Physical, Data Link, and Application Layers.

5 Physical Layer5.1 DB-9 RS232 Connector

Dc-2/MC-1 Typical Host

Ch A Transmit Data 2 2 Rx Data

Ch A Receive Data 3 3 Tx Data

Ch A Ground 5 5 Ground

9 Pin D-Shell

(female) lower

connector

9-Pin D-Shell

(male)

Note: The wiring requirements for a 9 pin to 9 pin serial connection, are a male to female straight through

cable.

5.2 Serial Port Driver

DC-2/MC-1 serial port has been setup to operate as follows:

Operating Mode: Full Duplex

Baud rate: 19.2K baud

Data Size: 8 bits

Parity: Odd

Stop Bits: 1

Physical Layer (RS232)

Data Link Layer

Application Layer

Contents

Main Page Page 1 Documents 2 Definitions 3 Abbreviations 4 General Description 5 Physical Layer 5.1 DB-9 RS232 Connector 5.2 Serial Port Driver 5.3 Errors 5.4 DC-2/MC-1 Receive Buffer 5.5 DC-2/MC-1 Hardware Verification 6 Data Link Layer 6.1 Errors 7 Application Layer 7.1 DC-2/MC-1 Asynchronous Notification Packets 7.1.1 Wakeup Notification 7.1.1.1 Notification Packet Description 7.1.1.2 Host Response Expected 7.1.2 Sleep Notification 7.1.2.1 Notification Packet Description 7.1.3 Front Panel Display Buffer 7.1.3.1 Notification Packet Description 7.1.3.2 Data Description 7.1.4 Parameter Change Notification 7.1.4.1 Notification Packet Description 7.1.4.2 Data Description 7.1.4.3 HOST Response 7.1.4.4 Supported System Parameters 7.2 Acknowledgment Packets 7.2.1 Acknowledge 7.2.1.1 Packet Description 7.2.1.2 Data Description 7.2.2 No Acknowledge 7.3 Host Initiated Command Packets 7.3.1 Reset Unit 7.3.1.1 Command Packet Description 7.3.1.2 DC-2/MC-1 Response 7.3.2 Restore Defaults 7.3.4 Get DC-2/MC-1 Unit Configuration 7.3.4.1 Command Packet Description 7.3.4.2 DC-2/MC-1 Unit Configuration Response Packet 7.3.4.3 Data Description 7.3.5 Get System Status 7.3.5.1 Command Packet Description 7.3.5.2 System Status Response Packet 7.3.5.3 Data Description 7.3.6 Get Record/Zone 2 Status 7.3.6.1 Command Packet Description 7.3.6.2 Record/Zone2 Status Response Packet 7.3.6.3 Data Description 7.3.7 Get System Parameter Definition 7.3.7.1 Get System Parameter Definition by Id Command Packet 7.3.7.2 Data Description 7.3.7.3 Data Validation: 7.3.7.4 Get System Parameter Definition by Name Command Packet 7.3.7.5 Data Description 7.3.7.6 Data Validation: 7.3.7.7 System Parameter Definition Response Packet 7.3.8 Get System Parameter Values 7.3.8.1 Command Packet Description 7.3.9.4 Effect Definition Response Packet 7.3.8.2 System Parameter Values Response Packet 7.3.8.3 Data Description 7.3.10 Get Effect Parameter Definition 7.3.10.4 Effect Parameter Definition Response Packet 7.3.10.1 Command Packet Description 7.3.10.2 Data Description 7.3.10.3 Data Validation: 7.3.11 Get Effect Parameter Values 7.3.11.4 Effect Parameter Values Response Packet 7.3.11.1 Command Packet Description 7.3.11.2 Data Description 7.3.11.3 Data Validation: 7.3.12 Get Custom Name 7.3.13.1 Command Packet Description 7.3.12.1 Command Packet Description 7.3.12.2 Data Description 7.3.12.3 Custom Name Response Packet 7.3.14 Get FPD Control Registers 7.3.14.1 Command Packet Description 7.3.14.3 Data Description 7.3.15 Set System Parameter Values 7.3.15.1 Command Packet Description 7.3.15.2 Data Description 7.3.15.3 DC-2/MC-1 Response 7.3.15.4 Data Validation 7.3.17 Set Effect Name by Effect Id 7.3.18 Set System Volume 7.3.19 Set Main Balance 7.3.20 Set Front/Back Balance 7.3.21 Set Active Effect by Id 7.3.22 Set Record/Zone2 Input 7.3.23 Clear Record/Zone2 Input 7.3.24 Set Zone2 Volume 7.3.25 Set Zone2 Left/Right Balance 7.3.26 Set Custom Name 7.3.27 Set Input Name by Id 7.3.28 Set FPD Control Registers 7.3.28.1 Command Packet Description 7.3.28.2 Data Description 7.3.28.3 DC-2/MC-1 Response 7.3.29 Host Wakeup 7.3.30 Host Sleep 7.3.30.1 Packet Description 7.3.30.2 Data Description 7.3.31 Get Communication Configuration 7.3.31.1 Command Packet Description 7.3.32 Set Communication Configuration 7.3.32.1 Command Packet Description 7.3.33.1 Command Packet Description 7.3.32.2 Data Description 7.3.33 Set Mute 7.3.34 Set Output Level Adjustments 7.3.34.1 Command Packet Description 7.3.34.2 Data Description 7.3.35 Send Display String Command 7.3.35.1 Packet Description 7.3.35.3 DC-2/MC-1 Response 7.3.35.2 Data Description Page Page 10 Appendix B Error Codes 11 Appendix C DC-2/MC-1 IR-Codes 12 Appendix D Input Ids 13 Appendix E Protocol Constants 14 Appendix F FPD Control Registers 15 Application Notes and Examples 15.1 Box initializations: 15.1.1 DC-2/MC-1: 15.1.2 HOST: 15.2 Getting System Wide Status and Setup: 15.3 Downloading the System Setup to the DC-2/MC-1: 15.4 Simple System Control & System Status: 15.5 Examples: 15.5.1 Get Unit Configuration 15.5.2 Get Effect Definition 15.5.3 Set Input Name 15.5.4 Send IR Command Example