le79234-sw Zarlink Semiconductor, le79234-sw Datasheet - Page 6

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

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Zarlink’s VoicePath™ software application implements common features and functions to reduce complexity. Note
that some features depend on support from the underlying hardware.
Key features of the VoicePath™ application include:
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The software package includes the following items.
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Zarlink’s VoicePath™ Application Programmer Interface (VP API-II) is a C source code module that provides a
standard software interface for implementing call control and line testing functions for a set of subscriber lines using
Zarlink VTDs. The VP-API-II abstracts and simplifies the details of controlling the Zarlink VTDs and allows software
developers to focus on the application instead of the underlying hardware.
The API functions can be summarized into the following five groups:
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Provides an abstract, uniform software interface for any combination of Zarlink voice products.
Provides various design tools to help in the creation and organization of design-specific parameters.
Supports any combination of FXS lines configured for either loop-start signaling or ground-start signaling.
Includes pulse-digit or flash decoder and a ringing or tone cadence engine.
Proven on embedded operating systems such as Linux and VxWorks, and also compatible with non-OS
environments; fits into common driver and static/dynamic library models.
Can be used with single or multi-threaded applications.
Supports various interrupt modes and both big-endian and little-endian host processors.
Implemented in C code that is efficient, portable, and ANSI C compliant.
Provides Self Test and Advanced line testing capabilities, including the support for GR-844 and GR-909
equivalent line testing.
Provides control for enhanced accuracy utilizing external calibration circuit in combination with NGVCP
Advanced line measurement functions.
Available in four different packages (Call Control, Basic Test, Advanced Test and Advanced Test Plus) to fit
the customer needs.
Sample Quick Start Guide and Quick Start Application software provided with source code to facilitate
startup and troubleshooting.
NGVCP-Host (HBI/SPI) Hardware Verification Application source code and MPI Verification Application
NGVCP loadable binary image provided to verify the interfaces between the NGVCP and the SLAC.
Includes comprehensive documentation, an excellent starting point to help the developer quickly become
familiar with the architecture.
Initialization functions: These functions initialize various aspects of the NGVCP or perform the
configuration required before a particular NGVCP feature may be used. Example of initialization features
include:
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Key Features
VoicePath™ API-II
Boot-load the firmware image into the NGVCP and start the DSP core inside the NGVCP.
Configure all lines with specified design parameters.
Calibrate all analog circuits of termination devices.
Zarlink‘s VoicePath™ Software Package
Zarlink Semiconductor Inc.
Le79234-SW
6
Data Sheet