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Cirrus Logic CobraNet User Manual

Page 106

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106

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Copyright 2006 Cirrus Logic, Inc.

DS651PM25

CobraNet Programmer’s Reference
Management Interface Variable Reference

Name

txBundle

Description

Transmit bundle assignment.

Host Address

0x5n100 (n is 0 based transmitter number)

SNMP Object ID

1.3.6.1.4.1.2680.1.1.7.1.1.2.n (n is 1 based transmitter number)

Type

Integer16

Attributes

Read/write - Persistent

Default Value

0

Implemented Version

2.1.0

Name

txDestinationMAC

Description

This variable is unused and should not be changed from its default value.

Host Address

0x5n101 (n is 0 based transmitter number)

SNMP Object ID

1.3.6.1.4.1.2680.1.1.7.1.1.3.n (n is 1 based transmitter number)

Type

PhysAddress

Attributes

Read/write - Persistent

Default Value

00:00:00:00:00:00

Implemented Version

2.2.0

Name

txPriority

Description

This is a two part variable used to set the preferred time within an isochronous cycle that a bundle is
sent and also the priority this bundle should be given in the event that more than one interface is
attempting to transmit using the same bundle number.
MS byte: Bundle priority. Higher priority bundles are transmitted earlier in the cycle. This can be
reflected in

txPosition. On a repeater network, and to some extent on a switched network, bundles

transmitted earlier may be less susceptible to dropouts in the event network bandwidth is
exhausted.
LS byte: Request priority. Only one transmitter is permitted per bundle. If two transmitters attempt
to transmit using the same bundle number, request priority is used to resolve the contention. If
request priority is the same for both transmitters, contention resolution is first-come-first-serve.

Host Address

0x5n104 (n is 0 based transmitter number)

SNMP Object ID

1.3.6.1.4.1.2680.1.1.7.1.1.4.n (n is 1 based transmitter number)

Type

Integer16

Attributes

Read/write - Persistent

Default Value

0x1010

Implemented Version

2.2.0