Lexicon MC-12 用户指南

Lexicon 
MC-12 Serial Communications Protocol 

 

Printed on: 07/13/05 

communication and will only transmit following the completion of any communication exchanges in 
progress or pending.  

7.1.3.1  Notification Packet Description 

  

Command DC_FPD 

0x03 

Data Count 

42 

0x2A 

 

  

Data[0] - Data[20] 

Line1 

ch ch ch… 0x00 

Data[21] - Data[41] 

Line2 

ch ch ch … 0x00 

 

7.1.3.2 Data Description 

Line1 

Data Type: 

Null (0x00) terminated ASCII character string. 

Max Length: 

DISP_LINE_LENGTH defined in 

Line2 

Data Type: 

Null (0x00) terminated ASCII character string. 

Max Length: 

DISP_LINE_LENGTH defined in 

 
 
The MC-12 includes 8 custom characters that are defined to display increments of a display block.  (i.e. 
Volume Bar)  The custom characters are ASCII character codes 8E - 93(hex).  The codes are used as 
follows: 

 '8E' - empty cell 

 

 

 '8F' - left 1 bar 

 

 

 '90' - left 2 bars 

 

 

 '91' - left 3 bars 

 

 

 '92' - left 4 bars 

 

 

 '93' - full cell 

7.1.3.3 HOST Response 

The MC-12 does not expect  any response from the HOST. 

MC-12 will transmit predetermined parameter change notifications. If a parameter value is changed due to 
any user action or system action the MC-12 will transmit the current value of the parameter that is 
changing. 
 
This command has been maintained for backward compatibility with MC-1.  In order to maintain backward 
compatibility, the MC-12 Parameters have been mapped to the MC-1 parameters as described in the 
Supported System Parameters table listed below.   
 
The MC-12 with s/w V3.0 will disable this notification by default. 
 
This notifications can be enabled and disabled by using the commands described in 7.3.31 Get 
Communication Configuration (MC-12, MC-1)  and  7.3.32 Set Communication Configuration (MC-12, 
MC-1). 
 

© 2005 Harman Specialty Group All rights reserved. 

 

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