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Điện tử số - Phần 1

Tham khảo tài liệu 'điện tử số - phần 1', kỹ thuật - công nghệ, kĩ thuật viễn thông phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Course contents Digital design Combinatorial circuits: without status Sequential circuits: with status FSMD design: hardwired processors Language based HW design: VHDL 5/ Language based HW design: a VHDL primer Introduction A first look at VHDL Signals and data types VHDL operators Concurrent versus sequential statements Sequential construction statements Higher performance, less portability: e.g. synthesis issues for Xilinx 5/ Language based HW design: a VHDL primer Introduction A first look at VHDL Signals and data types VHDL operators Concurrent versus sequential statements Sequential construction statements Higher performance, less portability: e.g. synthesis issues for Xilinx 5/ VHDL primer: Introduction Acronym: VHDL = VHSIC Hardware Description Language VHSIC = Very High Speed Integrated Circuit What is VHDL? A programming language for describing the behavior of digital systems Design entry language, used for Unambiguous specification at behavioral and RTL level Simulation (executable specification ) Synthesis Documentation Standardisation: IEEE 1076 First version: 1986 Second version: 1993 New version about to appear 5/ VHDL primer: Introduction When to use VHDL instead of schematics? Drawbacks: VHDL is easy to learn but hard to master (semantics are quite different from software languages) VHDL has a difficult syntax (Language sensitive editors with templates for all language constructs) VHDL is very ‘wordy’: lots of code to type for just a few simple things A list of instructions is less intuitive to understand than a block diagram for a human being VHDL is designed to make simulation efficient: contains aspects that have hardly anything to do with hardware behavior, but is useful to speed-up event driven simulation 5/ VHDL primer: Introduction When to use VHDL instead of schematics? Easier to capture complex circuits: higher level of abstraction with automated synthesis you specify ‘add’ instead of jotting down a specific type of . | Course contents Digital design Combinatorial circuits: without status Sequential circuits: with status FSMD design: hardwired processors Language based HW design: VHDL 5/ Language based HW design: a VHDL primer Introduction A first look at VHDL Signals and data types VHDL operators Concurrent versus sequential statements Sequential construction statements Higher performance, less portability: e.g. synthesis issues for Xilinx 5/ Language based HW design: a VHDL primer Introduction A first look at VHDL Signals and data types VHDL operators Concurrent versus sequential statements Sequential construction statements Higher performance, less portability: e.g. synthesis issues for Xilinx 5/ VHDL primer: Introduction Acronym: VHDL = VHSIC Hardware Description Language VHSIC = Very High Speed Integrated Circuit What is VHDL? A programming language for describing the behavior of digital systems Design entry language, used for Unambiguous specification at behavioral and RTL level .