COREFIR-RM【PDF 12/67 页】IP MODULE COREFIR

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Fully Enumerated Filter

Filter Description

This section describes how the fully enumerated CoreFIR filter implements hardware (HW) architectures. All

the architectures realize EQ 1 on page 5.

Transposed Architecture

Figure 6 depicts the transposed HW structure. The architecture is functionally equivalent to the structure

shown in Figure 1 , but eliminates the need for a multi-input adder. Instead, it uses the pipelined two-input

adder chain, which makes it highly beneficial for the HW implementation. It also offers low latency

implementation.

x(n)

C(N-1)

C(3)

C(2)

C(1)

C(0)

z -1

z -1

z -1

z -1

y(n)

Figure 6 · Transposed FIR Filter Architecture

Systolic Architecture

The systolic architecture adds more pipelines to the Direct Form I structure of Figure 1 . Depending on

particular filter parameters, the systolic structure can offer better performance due to extensive pipelining.

The structure is always used to implement FIR filters with symmetric impulse response. The systolic

architecture is shown in Figure 7.

x(n)

z -1

z -1

z -1

z -1

z -1

z -1

z -1

z -1

C(0)

C(1)

C(2)

C(3)

C(N-1)

z -1

z -1

z -1

z -1

y(n)

Figure 7 · Systolic FIR Filter Architecture

CoreFIR v8.5 Handbook

13

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COREFIR-XX 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CoreFIR Finite Impulse Response (FIR) Filter Generator

COREMP7 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CoreMP7

COREPCI-AN 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CorePCI v5.41

COREPCI-AR 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CorePCI v5.41

COREPCI-EV 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CorePCI v5.41

COREPCIF-OM 功能描述:IP MODULE COREPCIF RoHS:否类别:编程器，开发系统 >> 软件系列:* 标准包装:1 系列:ISE® 设计套件类型:订阅适用于相关产品:Xilinx FPGAs 其它名称:Q4986209T1081384

COREPCIF-OMFL 功能描述:IP MODULE 制造商:microsemi corporation 系列:- 零件状态:在售类型:许可证应用:- 版本:- 许可长度:- 许可 - 用户明细:- 操作系统:- 配套使用产品/相关产品:Microsemi 器件媒体分发类型:- 标准包装:1