现代电子设计技术.PPT

现代电子设计技术

ModernElectronicDesignTechnology;Textbook：

*DigitalDesign-PrinciplesandPractices(ThirdEdition)JohnF.Wakerly

1、用ISP器件设计现代电路与系统

刘笃仁编著西安电子科技大学出版社

2、在系统编程技术（第二版）黄正谨东南大学出版社

3、数字逻辑与系统实践教程、模拟电子技术基础实验

WayofStudy：Lecture+Experiment;课程性质和内容;Chapter1Introduction;WhatisProgrammableDesigning?

Programmabledesigningiscreatingadesignthatcanbeimplementedintoaprogrammabledevice.

PLDs(ProgrammableLogicDevices)andCPLDs(ComplexPLDs)areafewexamplesofprogrammabledevices.

;Therearethreebasicapproachestocreatingamulti-modulehierarchicaldesign:

;Inatop-downdesign,theuppermostschematicusuallyconsistsofnothingbutBlocksymbolsrepresentingmodules(plusanyneededpower,clocking,orsupportcircuitry).Thesemodulesarerepeatedlybrokendownintosimplermodules(ortheactualcircuitry)untiltheentiredesigniscomplete.;Inside-out(Mixed)Design

Inside-outdesignisahybridoftop-downandbottom-updesign,combiningtheadvantagesofboth.Youstartwhereveryouwantintheproject,buildingupanddownasrequired.

ISPSynariofullysupportsthemixedapproachtodesign.Thismeansthatyoucanworkbottom-uponthosepartsoftheprojectthatmustbedefinedinhardwarefirst,andtop-downonthosepartswithclearfunctionaldefinitions.;WhatisCPLD?;Incaseofthe7400IC,4circuitsof2inputNANDgatearehoused.Incaseof7404,6circuitsofinverterarehoused.

IncaseofCPLD,ithaswiringamongthelogicintheIC.So,thewiringontheprintedboardcanbemadelittle.;SeparateICPLD;TraditionDigitalLogicCircuitDesign;EDADigitalLogicCircuitDesign;--------可编程ASIC的分类:;90年代以后：

FPGA(现场可编程门阵列)

FieldProgrammableGateArray

Xilinx公司80年代中期

CPLD(复杂可编程逻辑器件)

ComplexProgrammableLogicDevice

Lattice公司（90年代初）：ispLSI器件(在系统可编程大规模集成器件)

InSystemProgrammable