le79112 Zarlink Semiconductor, le79112 Datasheet - Page 2

• Manufacturer Part Number: le79112
• Description: Voice Control Processor
• Manufacturer: Zarlink Semiconductor

Application Programming
Termination Devices (VTD).
The products, their specifications, services and other information appearing in this publication are subject to change by Zarlink without notice.
© 2010, Zarlink Semiconductor Inc. All Rights Reserved. Publication Number 10ZS210
Host Code
Document and source code for
high-level algorithms.
API-II Software
a unified programming
interface to all of Zarlink’s Voice
VCP Firmware
Control aggregation, DTMF
Detection, Line Testing,
Pulse dial timing, Zero cross
detection, CID.
Information relating to products and services furnished herein by Zarlink Semiconductor Inc. or its subsidiaries is believed to be reliable.
ZARLINK, ZL, and the Zarlink logo are trademarks of Zarlink Semiconductor Inc.
LE79112
Major Call Control Features
Interface (API) that presents
32-Channel Call Control
• Control/Coordination of Call Processing
• CID high level interface
• Control for Metering
DTMF Detection
• Up to 16 lines simultaneously
• Q.24 compliant
Pulse Dial Timing with Decode
• 32 simultaneous channels
• Adjustable timing parameters for Make, Break, Flash, and
Zero-Cross Detection for ringing on/off control
Optional make-before-break, or break-before-make (with
LCAS)
Adjustable delays for internal ringing
AC and DC fault detection with automatic disconnect of
the line
Slow ramp from Disconnect to Standby
• Programmable ramp time (0-4000ms)
Read loop conditions while in service
• Line Current (Metallic and Longitudinal)
• Sensed Voltage
• Current battery supply voltages
Howler Tone generation
Disconnect
VOICE CONTROL PROCESSOR
Voice Control Processor
Host Algorithms
Host Controller
VP API-II
MPI
HBI
The VCP Package
Minor Call Control Features
Loadable Image
• Field firmware updates (compressed image support)
Programmable on/off for each fault type
Automatic switch to “Active” (Talk) on ring-trip/off-hook
• Minimizes the delay for ring-trip; no host interaction needed
Automatic Ringing and Metering Cadencing
Smooth polarity reversal control
Checksum over Program Code space while in-service
External Ringing
Le79232 SLIC
EMR*/LCAS
790 Series
* Optional
QISLAC
Supported Line Circuit Configurations
w w w . Z A R L I N K . c o m
Line Configuration
Internal Ringing
Le79252 SLIC
Voiceport
790 Series
880 Series
2-CH ABS
QISLAC
TM