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Cirrus Logic CobraNet User Manual

Page 102

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102

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Copyright 2006 Cirrus Logic, Inc.

DS651PM25

CobraNet Programmer’s Reference
Management Interface Variable Reference

Name

rxMinDelay

Description

Selects a minimum additional delay imposed on the received audio. Delay is expressed in units of
isochronous 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). This variable is designed to allow configuration of a
deterministic common delay for all CobraNet interfaces in larger network installations.

rxDelay will

never be reduced below this setting. This variable is not designed for actively delaying audio for
architectural applications. The maximum setting for

rxMinDelay is determined by the amount of

Ethernet packet buffering available on the interface. Excessive settings will result in
ERROR_RXBUFFER_OVERFLOW errors and accompanying audio dropouts.

Host Address

0x4n106 (n is 0 based receiver number)

SNMP Object ID

1.3.6.1.4.1.2680.1.1.6.1.1.9.n (n is 1 based receiver number)

Type

Integer

Attributes

Read/write - Persistent

Default Value

0

Implemented Version

2.8.3

Name

rxSubFormat

Description

Vector of received audio format for each sub-channel. See

Table 6 on page 23

for a complete listing

of valid format values.
The least significant bit of these variables is set when the received format is supported for reception
by the CobraNet interface. A test of this least significant bit can be used to determine correct
reception on a per audio channel basis.
All entries in this vector will be 0 if

rxStatus is zero.

Host Address

0x4n30m (n is 0 based receiver number, m is 0 based audio channel number)

Count

8

SNMP Object ID

1.3.6.1.4.1.2680.1.1.6.2.1.3.n.m (n is 1 based receiver number, m is the 1 based sub-channel
number)

Type

Integer

Attributes

Read-only

Implemented Version

2.2.0