| ??? 03/23/10 17:51 Read: times |
#174440 - re: marketing Responding to: ???'s previous message |
Wolfgang Rapp said:
to bluff uninformed people. I think always they use USB2 when they are working with the 400mV level on the data lines independent from the speed. Actually, that's not true. Low- and Full-Speed USB always use the 3.3V differential signaling. Only the High-Speed transactions use the LVDS-ish signaling. This detail is taken care of by the PHY layer in your transceiver device so most designers needn't worry about it (except for the signal integrity issues). And the new Super-Speed that's part of the USB 3.0 uses a third signaling type (and a goofy connector). -a |
| Topic | Author | Date |
| USB 2.0 Compliant Yet Only Full Speed 12MHz | 01/01/70 00:00 | |
| it is a common misconception... | 01/01/70 00:00 | |
| Full vs High speed | 01/01/70 00:00 | |
| USB 2.0 High Speed | 01/01/70 00:00 | |
| 480Mbps is quite fast | 01/01/70 00:00 | |
| Applications | 01/01/70 00:00 | |
| 480Mbps on the way in | 01/01/70 00:00 | |
| Maybe, maybe not. | 01/01/70 00:00 | |
| Yes, things gets complicated at higher speeds | 01/01/70 00:00 | |
| you are fortunate | 01/01/70 00:00 | |
| Not lucky. Errata came much too late | 01/01/70 00:00 | |
| What do you expect to do with data? | 01/01/70 00:00 | |
| MCU with High Speed Port | 01/01/70 00:00 | |
| other way around | 01/01/70 00:00 | |
| Remember It is the Bus Sped | 01/01/70 00:00 | |
| Still fast compared to most microcontrollers | 01/01/70 00:00 | |
| high-speed USB with 48MHz Cypress 8051 core | 01/01/70 00:00 | |
| Marketing kidding | 01/01/70 00:00 | |
re: marketing | 01/01/70 00:00 | |
| browser problem? | 01/01/70 00:00 |