Host Initiated Command Packets; Reset Unit; Restore Defaults; Send Ir Command - Lexicon DC-2 Protocol Manual

Lexicon, Inc.
DC-2/MC-1 Serial Communications Protocol

7.3 Host Initiated Command Packets

The DC-2/MC-1 serial communication protocol has been designed to respond to the following commands
as described below. Each command is transmitted to the DC-2/MC-1 with the identified parameters. If the
command is successfully received and processed by the DC-2/MC-1, the unit will respond with the
described response packet or action.

7.3.1 Reset Unit

Commands the DC-2/MC-1 to soft reset.
7.3.1.1 Command Packet Description
Application Header:
Command DC_CMD_RESET
Data Count 0
Application Data:
N/A
7.3.1.2 DC-2/MC-1 Response
The DC-2/MC-1 will perform and internal reset. After reset the DC-2/MC-1 will go through a soft power-
up initialization. This includes transmitting the "Wakeup Notification Packet". A soft reset does not
reinitialize the DC-2/MC-1. Nonvolatile RAM is maintained.

7.3.2 Restore Defaults

Commands DC-2/MC-1 restore the system and effect parameters to the factory defaults.
7.3.2.1 Command Packet Description
Application Header:
Command DC_CMD_RESTORE_DEFAULTS
Data Count 0
Application Data:
N/A
7.3.2.2 DC-2/MC-1 Response
The DC-2/MC-1 will reset, clear any saved system and effect parameters in Nonvolatile RAM, and restore
the factory default system and effect parameters. After reset the DC-2/MC-1 will go through a soft power-
up initialization. This includes transmitting the "Wakeup Notification Packet".

7.3.3 Send IR Command

Transmits IR command key codes to the DC-2/MC-1.
7.3.3.1 Command Packet Description
Application Header:
Command DC_CMD_IR
Data Count 1
Application Data:
Data[0] KeyCode
7.3.3.2 Data Description
KeyCode:
Data Type:
Valid Values:
0x10
0x00
0x13
0x00
0x14
0x01
nn
Unsigned 8 bit integer.
Appendix C DC-2/MC-1 IR-Codes
Printed on: 10/19/00
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