Cc commands – Visara LINCS Central Control User Manual
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LINCS Central Control
707024-002
Expedite
This message from the CHC indicates that one of the three channel resets (System Reset,
Selective Reset, or Interface Disconnect) has been detected on the channel or a non-SNA
inbound data transfer has been terminated before all data has been transferred. The type of
reset detected and the channel address which was selected when the reset was detected is
included in the CHC message if applicable.
Also included in the message is a Sequence Number which will be used by the CHP and CHC
for synchronization in the event that multiple resets are detected on the channel. After the
CHP has completed any cleanup associated with the channel reset, a Reset Processed CC
Command will be issued to the CHC which includes the Sequence Number of the corresponding
Expedite CHC message.
The format of the description and extended data is:
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Trace Event
This message from the CHC is used to log any events detected by the CHC which do not
require any processing by the CHP. These events include Short Busy Sequences, Busy
sequences, Stack Status sequences, CUE status presented, Unsolicited TIO command received,
and Multiple System Resets Received.
The format of the description and extended data is:
• CHC Trace Event Addr = xx Flags = xx Status = xx
Note that the extended data may not be applicable to all Trace Event messages.
CC Commands
These messages are from the CHP to the CHC.
Ready for Outbound
This command is issued to the CHC to indicate that the CHP is ready to begin an outbound
data transfer on the channel. This command will only be seen in the event that the CHC had
been preloaded for an inbound data transfer and a channel command was received which
requests an outbound data transfer.
A Command Complete CHC message should be received from the CHC in response to this
CC command.
The format of the description and extended data is:
• Ready for Outbound
Reset Processing Complete
This command is issued to the CHC to indicate that processing of an Expedite CHC message
has been completed.
Also included in this message is the Sequence Number from the corresponding Expedite
CHC message. This Sequence Number is used by the CHP and CHC for synchronization in
the event that multiple resets are detected on the channel.