Cirrus Logic CobraNet - Manual (Page 101)

CobraNet Programmer’s Reference
Management Interface Variable Reference
DS651PM25
©
Copyright 2006 Cirrus Logic, Inc. 101
6.4.11 Receivers
Name rxStatus
Description
Indicates bundle reception. Bundle reception does not necessarily indicate audio reception. Consult
rxSubFormat variables for audio reception status.
0 - Bundle is not being received
1 - Bundle is being received
Host Address 0x4n000 (n is 0 based receiver number)
SNMP Object ID
1.3.6.1.4.1.2680.1.1.6.1.1.6.n (n is 1 based receiver number)
Type
Integer
Attributes
Read-only
Implemented Version
2.1.0
Name
rxDropouts
Description
Counts number of times bundle reception has been interrupted. Interruptions can be caused by
transmitter failure or by reconfiguring the receiver. This variable is implemented by counting
transitions to 0 of
rxStatus.
Host Address
0x4n001 (n is 0 based receiver number)
SNMP Object ID
1.3.6.1.4.1.2680.1.1.6.1.1.7.n (n is 1 based receiver number)
Type
Counter
Attributes
Read-only
Default Value 0
Implemented Version 2.1.0
Name
rxDelay
Description
Indicates additional group delay imposed on the received audio due to network forwarding delays.
Delay is expressed in units of audio transmission cycles (1-1/3ms for standard 5-1/3ms latency
mode, 2/3ms for 2-2/3ms latency mode and 1/3ms for 1-1/3ms latency mode).
Forwarding delay is continuously monitored by the receiver. If forwarding delay changes due to a
network reconfiguration or change in
rxBundle, the receiver delay will adapt to the new conditions. A
discontinuity in the audio stream will be experienced whenever the receiver delay is adjusted in this
manner.
Normal propagation delay is 4 isochronous cycle periods. This normal condition is indicated by a 0
reading in
rxDelay. A reading of 1 indicates an additional isochronous cycle period delay (for a total
of 5 cycles) has been inserted due to network forwarding delay.
Host Address
0x4n002 (n is 0 based receiver number)
SNMP Object ID 1.3.6.1.4.1.2680.1.1.6.1.1.8.n (n is 1 based receiver number)
Type Integer
Attributes
Read-only
Implemented Version
2.6.3