Appendix K Application Notes And Examples; Box Initializations; Mc-8; Host - Lexicon MC-8 V1.0 - SERIAL COMMUNICATIONS PROTOCOL DEFINITION REV 1-4 Manual

Lexicon, Inc.
MC-8 Serial Communications Protocol Printed on: 04/01/03

Appendix K Application Notes and Examples

6.4 Box initializations:

6.4.1 MC-8:

When the MC-8 is powered on it will initialize the serial port and then transmit the DC_WAKEUP Packet,
and look for an ACK from the HOST. Currently, if an ACK is not received, the MC-8 continues to operate.
This message is mostly for the HOST to know if the MC-8 is in an operational state.

6.4.2 HOST:

When the HOST issues a HOST_WAKEUP Packet the MC-8 responds with an ACK and then transmits
the current FPD buffer with a DC_FPD notification. If the Host issues a HOST_WAKEUP command and
does not receive the ACK it should assume it is not connected or the MC-8 is not capable of responding on
the RS232 and therefore further serial communications will not be possible. If the MC-8 RS232 is capable
of communicating, the MC-8 will respond to a HOST_WAKEUP Command in any "Powered up" state
including standby.

6.5 Getting System Wide Status and Setup:

TBD
6.6 Downloading the System Setup to the MC-8:
TBD
6.7 Simple System Control & System Status:
The HOST can control the system via the IR commands thus making any direct IR code a direct command.
Because of some limitations in the IR codes the HOST also has direct control over the system volume,
balance, fader, effect selection, zone 2 volume, balance and input selection through dedicated commands.
6.8 Examples:
The following examples show the byte's transmitted for the MC-8 Get Unit Configuration, and Send MC-1
IR, and Send MC-8 IR Commands . They are shown as they should be transmitted from left to right.

6.8.1 MC-8 Get Unit Configuration

The HOST initiates by sending the GET_UNIT_CONFIG command packet:
SOP DLL DC CMD AppDC EOP
F1 03 38 00 F2
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