参数资料
型号: VTERB-BLK-E3-U4
厂商: Lattice Semiconductor Corporation
文件页数: 20/34页
文件大小: 0K
描述: IP CORE VITERBI DECODER ECP3
产品培训模块: LatticeECP3 Introduction
标准包装: 1
系列: *
其它名称: VTERBBLKE3U4
Lattice Semiconductor
Parameter Settings
Traceback Length
Traceback length is the number of trellis states the decoder traces back for performing decoding. The traceback
length must be between 3K to 14K, where K is the Constraint Length. The range is further restricted by the value of
some block related parameters. See the Configuring the Block Viterbi Decoder section of this document for details.
Puncturing
This option specifies whether input data is punctured or not. If the input is punctured, the decoder can be set to use
either fixed puncture settings or dynamically variable puncture settings.
Puncture Settings
Puncture Pattern
Puncture pattern for fixed puncturing decoders. For dynamic puncture decoders, this pattern is applied through the
input port.
Max Input Rate
This is the maximum value for the numerator, k, of the code rate, when the puncture rate is dynamically set through
an input port.
Max Output Rate
This is the maximum value for the denominator, n, of the code rate, when the puncture rate is dynamically set
through an port.
Advanced Options Tab
Figure 3-2 shows the contents of the Advanced Options tab.
Figure 3-2. Advanced Options Tab
Generator Polynomials
Radix
This parameter specifies the number system in which the generator polynomials are specified.
IPUG32_02.7, June 2010
20
Block Viterbi Decoder User’s Guide
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VTERB-BLK-E2-U4 IP CORE VITERBI DECODER EC/ECP
相关代理商/技术参数
参数描述
VTERB-BLK-E3-UT4 功能描述:开发软件 BLOCK VITERBI DECODER (ECP3) RoHS:否 制造商:Atollic Inc. 产品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors
VTERB-BLK-P2-U4 功能描述:编码器、解码器、复用器和解复用器 Block Viterbi Decoder RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量(输入/输出):2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray
VTERB-BLK-PM-U4 功能描述:开发软件 Blck Viterbi Decodr User Config RoHS:否 制造商:Atollic Inc. 产品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors
VTERB-BLK-SC-U4 功能描述:编码器、解码器、复用器和解复用器 Block Viterbi Decoder RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量(输入/输出):2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray
VTERB-BLK-X2-U4 功能描述:开发软件 Blck Viterbi Decodr User Config RoHS:否 制造商:Atollic Inc. 产品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors