Lexicon, Inc.
MC-12 Serial Communications Protocol Printed on: 08/18/03
© 2003 Lexicon, Inc. All rights reserved. 41 of 94
TimeStamp: Is a null terminated ASCII text string describing the build date and time of the
current software build. The Format of this text string is:
“yy/mm/dd(sp)hh:mm”
yy- is the last two digits of the year (i.e. year 2001=01, year 2002 = 02)
mm - is the month
dd- is the day
(sp) - is an ASCII space character (0x20)
hh - is the hour
mm - is the minute
SerialNumber: The Serial Number is an unsigned 32 bit integer holding the unique value of the
current unit.
7.3.40 MC-12 Send IR Command (MC-12)
This command allows the HOST to transmit IR command key codes to the MC-12.
7.3.40.1 Command Packet Description
Application Header:
Command MC_CMD_IR 0x39
Data Count 1 0x01
Application Data:
Data[0] KeyCode nn
7.3.40.2 Data Description
KeyCode:
Data Type: Unsigned 8 bit integer.
Valid Values: Appendix D MC-12 IR-Codes
7.3.40.3 MC-12 Response
The KeyCode is processed as a valid IR code. No acknowledgment will be sent from MC-12.
7.3.40.4 Data Validation
The KeyCode data will be verified as a legal IR code. If the Code is not valid the MC-12 will not respond.
7.3.41 MC-12 Get Parameter Value by Id (MC-12)
Request to MC-12 for the current value of a given parameter. The MC-12 will respond with a “Parameter
Value Packet”.
7.3.41.1 Command Packet Description
Application Header:
Command MC_CMD_GET_PARAM_VALUE_BY_ID 0x3A
Data Count 2 0x02
Application Data:
Data[0] ParamId (LSB) nn
Data[1] ParamId (MSB) nn
7.3.41.2 Data Description
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