【解析】解:下降沿触发D触发器的Verilog HDL行为描述程序如下//D flip-flop with asynchronous resetmodule async_rst_DFF (Q, QN, D, CP, Rd);output reg Q, QN;input D, CP, Rd;assign QN = ~Q;always @(negedge CP or negedge Rd)if(~Rd) Q=1^(q_b) //异步清零else Q=D;//同步行为endm...
a,其实就是复位信号要不要写到always的敏感表里面的问题了。 b,在Virtex的器件中FDC异步触发器【D Flip-Flop with Asynchronous Clear】,FDR同步触发器【D Flip-Flop with Synchronous Reset】,上面的代码用Synplify或ISE综合一下就可以看出来。
https://microcontrollerslab.com/d-flip-flop-design-simulation-analysis/ 1/28 DFlipFlopdesignsimulationandanalysisusing di erentsoftware’s OptimizedDesignandsimulationsof D-FlipFlopusingDSCH3,XilinxISE& Microwind :Inthisarticlewehavestudiedthesimulation,verilogveri ...
In this paper, we show how to use Verilog HDL along with PLI (Programming Language Interface) to model asynchronous circuits at the behavioral level by implementing CSP (Communicating Sequential Processes) language constructs. Channels and communicating actions are modeled in Verilog HDL as abstract ac...
Asynchronous microcontroller interface is replaced by equivalent Universal interface All latches implemented in original 16550 devices are replaced by equivalent flip-flop registers, with the same functionality or 8-bit characters Even, odd, or no-parity bit generation and detection or 2-stop bit ...
An interesting technique for doing FIFO design is to perform asynchronous comparisons between the FIFO write and read pointers that are generated in clock domains that are asynchronous to each other. The asynchronous FIFO pointer comparison technique uses fewer synchronization flip-flops to build the ...
Use the -exact_map option of the compile_ultra command or compile command to restrict the mapping to sequential cells with simple behavior (synchronous set and reset, synchronous toggle, synchronous enable, asynchronous set and reset, and asynchronous load and data). When you use the -exact_map...
RTL设计概述ppt课件 ;.RTL设计概述 1 ;.Tips•Digitalsystem•Verilogbasicstructure•Codingstyle 2 Digitalsystem•RTL在整个数字系统设计中的地位 ;.无论是CPU 还是基带芯片 还是声卡芯片 3 RTL设计是整个数字系统设计的根基 •ARM11corestructure 4 ;.•HelloworldC语言 5 ;.•Helloworld汇编语言 6 ;....
reset_polarity -register_outputs -1 -period -async_reset -stall_ports -verbose -sync_reset -print_critical_loop -no_clock_correction -stall_polarity -flatten -stages -exact_map -check_design pipeline_loop -initiation_interval -latency pkg_mkIndex pla_read_create_flip_flop plot -hierarchy -...
Asynchronous microcontroller interface is replaced by equivalent Universal interface All latches implemented in original 16750 devices are replaced by equivalent flip-flop registers, with the same functionality Delivery the IP Core updates, minor and major versions changes Delivery the documentation updates ...