ORT4622

Preliminary Data Sheet March 2000 ORCA® ORT4622 Field-Programmable System Chip (FPSC) Four-Channel x 622 Mbits/s Backplane Transceiver Introduction Lucent Technologies Microelectronics Group has developed a solution for designers who need the many advantages of FPGA-based design implementation, coupled with high-speed serial backplane data transfer. The 622 Mbits/s backplane transceiver offers a clockless, high-speed interface for interdevice communication on a board or across a backplane. The built-in clock recovery of the ORT4622 allows for higher system performance, easier-todesign clock domains in a multiboard system, and fewer signals on the backplane. Network designers will benefit from the backplane transceiver as a network termination device. The backplane transceiver offers SONET scrambling/descrambling of data and streamlined SONET framing, pointer moving, and transport overhead handling, plus the programmable logic to terminate the network into proprietary systems. For non-SONET applications, all SONET functionality is hidden from the user and no prior networking knowledge is required. s HSI function uses Lucent Technologies Microelectronics Group’s proven 622 Mbits/s serial interface core. Four-channel HSI function provides 622 Mbits/s serial interface per channel for a total chip bandwidth of 2.5 Gbits/s (full duplex). LVDS I/Os compliant with EIA*-644, support hot insertion. 8:1 data multiplexing/demultiplexing for 77.76 MHz byte-wide data processing in FPGA l...