原创 8051 IP核（Verilog）

8051 IP核（Verilog）

1. oc8051
oc8051was the first 51 cores I have researched. It works in high speed due to its 2 states pipelined architecture and 32-bit rom. <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

http://www.opencores.org/projects.cgi/web/8051/overview
oc8051_verilog.rar   part1 https://static.assets-stash.eet-china.com/album/old-resources/2009/2/10/a97fb1e2-3faa-4116-be0e-ccb94d8fa867.rar  part2 https://static.assets-stash.eet-china.com/album/old-resources/2009/2/10/9bf6f214-b80e-4d1a-a48d-51203fe2b832.rar

2.DW8051
DW8051is designed by synopsys, and its instruction cycle is 4 clock, which lead to about 3 times faster than Intel 8051 with the same oscillator frequency. I  writed ram, rom, some other perpherals such as DES, RNG, and its testbench, and it worked all right!

http://www.synopsys.com/dw/doc.php/ds/i/dw8051.pdf  

DW8051_verilog.rar   https://static.assets-stash.eet-china.com/album/old-resources/2009/2/10/79f3d143-bb5f-489c-9d91-f242b3902eaa.rar
DW8051_databook.rar  https://static.assets-stash.eet-china.com/album/old-resources/2009/2/10/fdf6781c-ac7d-45e7-817e-42c5e8ff995d.rar
DW8051_applications.rar   https://static.assets-stash.eet-china.com/album/old-resources/2009/2/10/6589a14a-004f-4ca8-8f45-b5d9d59616c9.rar

3.IT8051
IT8051 is an enhanced version of T51 (in VHDL from opencore), and it has been translated to verilog HDL. Its interface is similar to DW8051 but it's much faster than DW8051 due to its 3 states pipeline. So far I have not tested it for time limited and it will be my future research target.
To known more details about IT8051, click the following link!
http://www.fpga-fancier.com/phpBB2/viewforum.php?f=6
IT51_verilog.rar   https://static.assets-stash.eet-china.com/album/old-resources/2009/2/10/59fb4000-b585-4c85-ba83-86b4a891c5fb.rar

4.Q8051
So far I am not familiar with Q8051!
To known details about Q8051, click the following link!
http://www.design-reuse.com/news/6665/quickcores-free-microcontroller-cpu-netlist-library.html
Q8051_verilog.zip  https://static.assets-stash.eet-china.com/album/old-resources/2009/2/10/9ee23dd1-4ca4-407c-abb5-0a4ab0c3b735.zip

转载自：FOUR 8051 cores in Verilog - 8051 - 通用设计 - EDA专业论坛 最专业的FPGA/IC设计论坛 - Powered by Discuz!

http://www.edacn.net/bbs/viewthread.php?tid=133140&extra=page=1