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Lexicon, Inc.
MC-8 Serial Communications Protocol
The notification packets are defined as follows:
6.1.1 Wakeup Notification
By transmitting the Wakeup Notification, MC-8 indicates the unit has just "powered on" or reset and is ready to
receive host commands. This notification is primarily for the HOST to know the status of the MC-8.
6.1.1.1 Notification Packet Description
6.1.1.2 Host Response
The MC-8 does not expect any response from the HOST.
6.1.2 Sleep Notification
By transmitting the Sleep Notification, MC-8 indicates the unit is shutting down into a standby mode. Because the
hard power switch could be activated independently of the MC-8 system software, hard power down will not be
notified. Acknowledgment of the Sleep Notification is not required. This notification is primarily for the HOST to
know the operating status of the MC-8.
6.1.2.1 Notification Packet Description
6.1.3 Front Panel Display
MC-8 will transmit the front panel display buffer following the update to the MC-8 front panel display. The MC-8
front panel display is 2 X 20 ASCII character display. The HOST can enable transmission of this notification
message by sending Host Wakeup (7.3.29). To disable transmission the HOST can send Host Sleep (7.3.30).
Transmission of the display buffer is asynchronous to other host/MC-8 communication and will only transmit
following the completion of any communication exchanges in progress or pending.
6.1.3.1 Notification Packet Description
6.1.3.2 Data Description
© 2003 Lexicon, Inc. All rights reserved.
Application Header:
Command
DC_WAKEUP
Data Count
0
Application Data:
N/A
Application Header:
Command
Data Count
Application Data:
Application Header:
Command
Data Count
Application Data:
Data[0] - Data[20]
Data[21] - Data[41]
0x01
0x00
DC_SLEEP
0x02
0
0x00
N/A
DC_FPD
0x03
42
0x2A
Line1
ch ch ch... 0x00
Line2
ch ch ch ... 0x00
Printed on: 04/01/03
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