URL https://opencores.org/ocsvn/usb_phy/usb_phy/trunk

Subversion Repositories usb_phy

[/] [usb_phy/] [trunk/] [doc/] [README.txt] - Diff between revs 2 and 5

Rev 2	Rev 5
Line 19...	Line 19...
`-------------`	`-------------`
`Sorry, there is none. I just don't have the time to write it. I have tried`	`Sorry, there is none. I just don't have the time to write it. I have tried`
`to follow the UTMI interface specification from USB 2.0 with one exception:`	`to follow the UTMI interface specification from USB 2.0 with one exception:`
`I have not added any error checking in the RX PHY, hence the RxError pin`	`I have not added any error checking in the RX PHY, hence the RxError pin`
`is permanently tide to ground.`	`is permanently tide to ground.`
	`'phy_mode' selects between single ended and differential tx_phy output. See`
	`Philips ISP 1105 transceiver data sheet for an explanation of it's MODE`
	`select pin.`
	`Currently this PHY only operates in Full-Speed mode. Required clock frequency`
	`is 48MHz, from which the 12MHz USB transmit and receive clocks are derived.`


`Misc`	`Misc`
`----`	`----`
`The USB 1.1 Phy Project Page is:`	`The USB 1.1 Phy Project Page is:`
`http://www.opencores.org/cores/usb_phy`	`http://www.opencores.org/cores/usb_phy`