Digital Video Broadcasting - Asynchronous Serial Interface (DVB-ASI) IP Core

Overview

Digital Video Broadcasting (DVB) is a suite of open standards for digital television. The interface schemes for DVB are defined in the European standard EN 50083-9, “Interfaces for CATV/SMATV Headends and Similar ProfessionalEquipment”. DVB via Asynchronous Serial Interface (DVB-ASI) is one of the primary mechanisms to transport MPEG-2 based streams over cable media. 

DVB-ASI is a three-layered architecture with the top layer (Layer 2) specified by IEC 13818-1 and the bottom layers, Layer 1 and Layer 0, specified by the Fibre Channel standard IEC 141165-1, part 1. This IP core along with LatticeECP3™ SERDES/PCS implements Layer 1 of the DVB-ASI interface.  A part of Layer 2 functionality is also supported by the IP core.

DVB-ASI Interface Layers

Key Features 

• Configurable Tx FIFO supporting independent Layer 2 transmit clock
• Configurable Rx FIFO supporting independent Layer 2 receive clock
• Automatic start of packet comma insertion in the transmit side
• Rate-matching comma insertion in the transmit side
• Handshake signals for sync and data valid for transmitter and receiver
• Tx and Rx FIFO full indicators
• Rx sync byte indicator for identifying start-of-packet
• Optional configurable almost full and almost empty indicators for the FIFOs
• Matching port names for seamless connection with LatticeECP3 SERDES/PCS
• Layer 2 functions including lock, sync byte, packet size, runt and giant indicators

Performance and Resource Utilization

1. Performance and utilization data are generated targeting an LFE3-95E-7FN1156C device with Lattice’s Diamond 1.1 software. Performance may vary when using a different software version or targeting a different device density or speed grade within the LatticeECP3 family.

Ordering Information

IP Version: 1.1
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