Noesis Technologies has announced the immediate availability of its ITU G.704 compliant E1 Framer/ Deframer IP core (ntE1_G704). The IP core is designed for E1 networks and is compliant with ITU recommendations G.704, G.706, G.732, G.775 and O.163. The core provides all the necessary data-formatting transforms for transmission over an E1 carrier, one of the two most widely used TDM (time division multiplexing) carriers incorporating 32 channels, each with a bandwidth of 64kbps providing a total bit rate of 2048kbps.

The ntE1_G704 IP core provides a flexible interface supporting hardware and microprocessor modes. Specifically, the core can be connected to a host system either through an 8-bit parallel microprocessor interface (HP mode) or through a set of I/O ports (HW mode). When in HP mode, the microprocessor configures and monitors the functionality of the core through a rich set of registers. When in HW mode, the core is directly controlled and monitored through a set of dedicated ports and no microprocessor control is necessary.

At the transmit side, the framer generates framing patterns, CRC4 bits, formats outgoing and signaling data, generates alarms and clock outputs for data conditioning and decoding. At the receive side, the deframer establishes frame/ multi-frame synchronization, extracts data, signaling and alarm flags. It provides information like frame, multi-frame alignment, calculates CRC4, counts CRC4 errors and performs A-bit processing.
The ntE1_G704 core can be used in primary rate digital trunk interfaces, computer to PBX interfaces (CPI and DMI), to any high speed computer-to-computer data link and generally to any digital cross connect interface.

Availability ntE1_G704 is available under a flexible licensing scheme as parameterizable VHDL or Verilog source code or as a fixed netlist in various FPGA target technologies. 

About Noesis Technologies:
Noesis Technologies is a leading provider of Forward Error Correction IP core solutions. Noesis Technologies specializes in the design, development and marketing of high quality, cost effective communication IP cores and provides VLSI design services. Its field of expertise include Forward Error Correction, Cryptography and Networking technology. In these fields, a broad range of high quality IP cores are offered. Noesis IP cores have been licensed worldwide and its impressive list of customers ranges from large companies to dynamic startups in diverse market sectors such telecommunications, networking, military, industrial control and lower-power portable. For more information, visit the Noesis website at www.noesis-tech.com.

In the press: Design-Reuse, SOCcentral, FPGA Central