Lexicon, Inc.
DC-2/MC-1 Serial Communications Protocol Printed on: 10/19/00
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Zone 2 Balance Z2_BAL
Zone 2 Mute Z2_MUTE
Bass BASS
Treble TREBLE
Loudness LOUDNESS
Tilt TILT
Menu Background On/Off MENU_BKGND
The parameter definitions for each of these parameters can be obtained by querying the DC-2/MC-1 with
the DC_CMD_GET_SYS_PARAM_BY_NAME command. The DC_RESP_SYS_PARAM_DEF will
contain the ParamId for each of the parameters. The ParamId may change with s/w version changes, but the
Parameter Name will not.
7.2 Acknowledgment PacketsAcknowledge and No Acknowledge packets are used to communicate transmission, packet and data
validation status. Both the HOST and DC-2/MC-1 can transmit and receive these packets.
7.2.1 Acknowledge7.2.1.1 Packet Description
Application Header:
Command DC_ACK 0xE0
Data Count 1 0x01
Application Data:
Data[0] Command nn
7.2.1.2 Data Description
Command:
DataType: Valid DC-2/MC-1 command as defined in Appendix A Command Codes.
7.2.2 No Acknowledge7.2.2.1 Packet Description
Application Header:
Command DC_NACK 0xE1
Data Count 2 0x02
Application Data:
Data[0] Command nn
Data[1] ErrorCode nn
7.2.2.2 Data Description
Command:
DataType: Valid DC-2/MC-1 command as defined in Appendix A Command Codes.
ErrorCode:
DataType: Error code as defined in Appendix B Error Codes.