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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 ca ble media.
DVB-ASI is a three-layered architect ure with the top layer (Layer 2) specified by IEC 13818-1 and th e 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 c omma ins e rtion 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 SERDE S/PCS
Layer 2 functions inclu ding lock, sync byte, packet size, runt and giant in dicators
Performance and Resource Utilization
Sample Configuration SLICEs LUTs Registers EBRs Tx Clk Tx Full Clk Rx Full Clk Rx Clk
1 249 478 343 2 113 119 127 219
2 84 162 136 1 183 121 - -
3 156 301 202 1 - - 117 203
LatticeECP31
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.
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Ordering Information
Family Part Number
LatticeECP3 DVB-ASI-E3-U
IP Version: 1.1
Evaluate: To download a full evaluation version of this IP, go to the IPexpress tool and click the IP Server button in the
toolbar. All LatticeCORE IP cores and modules available for downlo ad will be visible. For more information on
viewing/downloading IP please read the IP Express Quick Start Guide.
Purchase: To find out how to purchase the IP Core, please contact your local Lattice Sales Office.
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