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Lexicon, Inc.
DC-2/MC-1 Serial Communications Protocol Printed on: 10/19/00
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LED Acknowledge Enable: TRUE Indicates the DC-2/MC-1 will light the green standby LED to
indicate the DC-2/MC-1 is receiving data on the RS232 serial port, and will light the Red Overload LED to
indicate the Dc-2/MC-1 is transmitting data on the RS232 serial port.
FALSE Indicates the DC-2/MC-1 will not light the green standby or the red
overload LED’s.
7.3.32 Set Communication Configuration
The Set Communication Configuration Command allows the serial port user to setup the various serial
port/ protocol configuration parameters.
7.3.32.1 Command Packet Description
Application Header:
Command DC_CMD_SET_COM_CONFIG 0x30
Data Count 1 0x01
Application Data:
Data[0] Configuration Register 0 nn
7.3.32.2 Data Description
Data Word Bit Definition
0 0 Acknowledge Enable
0 1 Parameter Change Enable
0 2 LED Acknowledge Enable
Acknowledge Enable: TRUE Indicates the DC-2/MC-1 will transmit Acknowledge Notification’s to
the Host.
FALSE Indicates the DC-2/MC-1 will not transmit any positive Acknowledge
Notification messages. The DC-2/MC-1 will always transmit NAK error notification messages.
Parameter Change Enable: TRUE Indicates the DC-2/MC-1 will transmit any paramter change
Notification as specified in the Parameter Change Notification Message.
FALSE Indicates the DC-2/MC-1 will not transmit parameter change
Notifications.
LED Acknowledge Enable: TRUE Indicates the DC-2/MC-1 will light the green standby LED to
indicate the DC-2/MC-1 is receiving data on the RS232 serial port, and will light the Red Overload LED to
indicate the Dc-2/MC-1 is transmitting data on the RS232 serial port.
FALSE Indicates the DC-2/MC-1 will not light the green standby or the red
overload LED’s.
7.3.32.3 DC-2/MC-1 Response
The data values transmitted will be copied over to the registers stored in nonvolatile RAM. The DC-2/MC-
1 will respond with an ACK Packet.
7.3.33 Set Mute
The Set Mute Command message allows the RS232 users to set/clear the DC-2/MC-1 mute state directly.
7.3.33.1 Command Packet Description