TW200609801A - Embedded oscillator for low-speed USB device - Google Patents
Embedded oscillator for low-speed USB deviceInfo
- Publication number
- TW200609801A TW200609801A TW093126573A TW93126573A TW200609801A TW 200609801 A TW200609801 A TW 200609801A TW 093126573 A TW093126573 A TW 093126573A TW 93126573 A TW93126573 A TW 93126573A TW 200609801 A TW200609801 A TW 200609801A
- Authority
- TW
- Taiwan
- Prior art keywords
- oscillator
- signals
- usb interface
- signal generator
- low
- Prior art date
Links
Abstract
The present invention discloses an embedded oscillator to be used in a USB interface controller or other controller connected with the USB interface. The invented oscillator circuit comprises: an oscillator signal generator to generate oscillator signals in particular frequency; a counter to receive synchronization signals from the USB interface and oscillator from said oscillator signal generator and to calculate a time unit according to said synchronization signals and number of said oscillator signal generated within a particular cycle; an oscillator signal adjustment circuit to adjust said oscillator signals according to said time unit; and a frequency signal generator to generate frequency signals according to said adjusted oscillator signals.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW93126573A TWI250442B (en) | 2004-09-02 | 2004-09-02 | Embedded oscillator for USB device and method for generating frequency signals thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW93126573A TWI250442B (en) | 2004-09-02 | 2004-09-02 | Embedded oscillator for USB device and method for generating frequency signals thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
TWI250442B TWI250442B (en) | 2006-03-01 |
TW200609801A true TW200609801A (en) | 2006-03-16 |
Family
ID=37433034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW93126573A TWI250442B (en) | 2004-09-02 | 2004-09-02 | Embedded oscillator for USB device and method for generating frequency signals thereof |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI250442B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7840733B2 (en) * | 2008-07-03 | 2010-11-23 | Intel Corporation | Power optimized dynamic port association |
TWI508457B (en) * | 2009-06-05 | 2015-11-11 | Elan Microelectronics Corp | Methods and circuits for correcting the frequency of USB devices |
TWI410806B (en) | 2009-10-16 | 2013-10-01 | Elan Microelectronics Corp | A method and a circuit for correcting the frequency of the USB device, and a method of identifying whether or not the input packet is a tag packet |
-
2004
- 2004-09-02 TW TW93126573A patent/TWI250442B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
TWI250442B (en) | 2006-03-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |