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| Speed of USB used in Yubikey? https://forum.yubico.com/viewtopic.php?f=16&t=273 |
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| Author: | Patgadget01 [ Tue Feb 24, 2009 9:22 pm ] |
| Post subject: | Speed of USB used in Yubikey? |
Hi, i was wondering what is the USB speed use in the yubikey 1.5Mb or faster. Thank Patgadget Montreal |
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| Author: | Jakob [ Wed Feb 25, 2009 12:13 am ] |
| Post subject: | Re: Speed of USB used in Yubikey? |
The Yubikey is a low-speed USB periperhal, i.e. communication is at 1.5 Mbit/s. For HID devices with a report size of just 8 bytes (like a keyboard), beefing up the speed does not make sense. The nice thing with USB low speed is the relaxed timing requirements that allows use of a low-frequency, an all-silicon oscillator circuit. Regards, JakobE Hardware- and firmware guy @ Yubico |
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