The Le79112 VCP device, in combination with the VE790 series chipset, supports up to 32 channels of universal telephone line interface with higher-level functionality. The Le79112 VCP device has integrated self-test and line-test, capable of meeting GR844 requirements.

• Software interface using VP API-II
• Software downloadable, field upgradeable, expandable
• Provides expanded line and circuit testing in conjunction with the VE790 Series chip sets
• DTMF detection (Q.24, up to 16 channels simultaneously)
• Quad tone and howler tone generation
• Arbitrary single tone detection
• 15-kHz energy detection
• SNR tests
• Dial pulse measurement
• Aggregated codec/filter control lowers demand on host micro-processor
• Master MPI port to the SLAC device
• Slave PCM port can be used as an alternative
• Internal PLL and timing circuits with programmable dividers
• Serial and parallel controller interface options
• 16 I/Os to support controlling up to 32 lines
• 3.3-V compliant I/O; Internal 3.3-V to 2.5-V linear regulator for the core logic