le79234-sw Zarlink Semiconductor, le79234-sw Datasheet - Page 7

• Manufacturer Part Number: le79234-sw
• Description: Voiceedgetm Control Processor Software Package Next Generation Carrier Chipset Ngcc
• Manufacturer: Zarlink Semiconductor

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1.3
The VoicePath™ Test Library (VP-TL) is a collection of functions and data types that further utilize the line testing
capabilities of Zarlink's VP API-II. These algorithms are executed on the host processor interfaced to Zarlink’s
NGVCP device combined with the NGCC devices though the VoicePath™ API-II.
The VP-TL offers the following key features:
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1.4
NGVCP firmware implements specific functions such as the line test primitives, advanced tone processing and
cadencing. The software package controls the NGVCP device. The NGVCP device’s registers and commands are
shielded behind the VP-API-II which is the communication layer between the NGVCP device and the customer’s
host processor. The NGVCP firmware is currently available in four variations, depending on the test package
selected:
Query Functions: The query functions provide several methods for servicing the NGVCP device’s interrupts
and checking the status of the lines. These functions allow the user to read option settings or line conditions,
and to retrieve event contents or test results. Examples of query functions include:
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Control Functions: These functions control the current line state and set options that may change during
run-time. Examples of control functions include:
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Test Functions: The test functions provide a toolbox of line tests and diagnostic utilities. Example of test
functions include:
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Helper Functions: The helper functions provide an interface for sending raw commands to a SLAC device
controlled by the NGVCP over the MPI.
Provides optimal default values for test input parameters that do not typically change at runtime, such as
integration times, settling times, etc.
Performs a complete high-level test by running several VP-API-II test primitives in sequence.
Converts fixed-point results returned by the VP-API-II test primitives into standard units that the application
can readily use.
Includes line Self-Testing to check for possible problems before putting a line into service.
Includes line calibration for improving the testing accuracy by identifying correction factors that will be
applied against measurement results.
Allows line topology to be specified on a per line basis.
Includes three versions of the Test Library, with increasing feature sets depending on the test package
selected.
On/Off hook, read loop conditions for a specific line.
Global device status for up to 32 lines.
Read various VoicePath™ API device set options and test results.
Set a line to a desired state.
Places a cadenced DTMF call progress tone on the line.
Start metering on a particular line.
Set various VoicePath™ API device specific option.
Perform Self Test on a particular line or the entire system.
Test primitives to support GR844 or GR909 line test on any given channel. Note the measured values
need to be converted from integer 16 bit 2’s complement into standard units.
VoicePath™ Test Library
NGVCP Firmware
Zarlink Semiconductor Inc.
Le79234-SW
7
Data Sheet