ABC Office MC-1, DC-2 manual Acknowledgment Packets, No Acknowledge

Lexicon, Inc.
DC-2/MC-1 Serial Communications Protocol		Printed on: 10/19/00
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 Packets

Acknowledge 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	Acknowledge
7.2.1.1	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 Acknowledge
7.2.2.1	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.

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