shakti/m_class/ULPI.mdwn

   1 # USB2 (ULPI)
   2
   3 ## Requirements
   4 * PHY (to be determined)
   5 * DDR mode
   6 * ...
   7
   8 ## LICENSE
   9 BSD I guess...(fix me)
  10
  11 ## Useful resources
  12
  13 ![UTMI_interface](https://www.crifan.com/files/pic/serial_story/other_site/p_blog_bb.JPG)
  14
  15 ![UTMI+levels](https://www.crifan.com/files/pic/serial_story/other_site/p_blog_aa.JPG)
  16
  17 ![UTMI+level3_interface](https://www.crifan.com/files/pic/serial_story/other_site/p_blog_cc.JPG)
  18
  19 ![LPI_signals](https://www.crifan.com/files/pic/serial_story/other_site/p_blog_dd.JPG)
  20
  21 ![LPI_signals_table](https://www.crifan.com/files/pic/serial_story/other_site/p_blog_dd.JPG)
  22
  23 ## reference
  24 * <https://opencores.org/project,ulpi_wrapper> (GPL'd)
  25 * <https://github.com/mossmann/daisho/blob/master/sw/fpga/common/usb3/usb2_ulpi.v> (BSD)
  26 * <https://opencores.org/project,usb>
  27 * <https://github.com/alexforencich/verilog-wishbone>
  28
  29