Lexicon MC-12 用户指南

Lexicon 
MC-12 Serial Communications Protocol 

 

Printed on: 07/13/05 

By transmitting the Sleep command, the Host indicates it has just “powered down” and will no longer 
respond to MC-12 Notifications.  No Acknowledgment is expected. The Host is assumed to be asleep upon 
power up of the MC-12.  Host status is maintained during standby. 

7.3.30.1 Packet Description 

  

Command HOST_SLEEP  0x12 
Data Count 

0 

0x00 

  

  

N/A 

  

 

7.3.30.2 Data Description 

 N/A 

This command is a request to the MC-12 for the current communications configuration for the serial port 
and protocol.  The MC-12 responds to this command with a Communication Configuration Packet. 

7.3.31.1  Command Packet Description 

  

Command DC_CMD_GET_COM_CONFIG 

0x2F 

Data Count 

0 

0x00 

  

  

N/A 

  

 

7.3.31.2  Communication Configuration Response Packet 

  

Command DC_RESP_COM_CONFIG 

0x8C 

Data Count 

1 

0x01 

  

Data[0] 

Configuration Register 0 

nn 

 
 

7.3.31.3 Data Description 

Data Word 

Bit 

Definition 

0 0 

Acknowledge 

Enable 

0 

1 

Parameter Change Enable 

 
Acknowledge Enable: 

 

TRUE  Indicates the MC-12 will transmit Acknowledge Notification’s to the Host. 
FALSE  Indicates the MC-12 will not transmit any positive Acknowledge Notification 

messages.  The MC-12 will always transmit NAK error notification messages. 

 
Parameter Change Enable:  

TRUE  Indicates the MC-12 will transmit any parameter change Notification as 

specified in the Parameter Change Notification Message. 

© 2005 Harman Specialty Group All rights reserved. 

 

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