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W83194BR-903 Dataheets PDF



Part Number W83194BR-903
Manufacturers Winbond
Logo Winbond
Description STEPLESS VIA PT/PM MAIN CLOCK GENERATOR
Datasheet W83194BR-903 DatasheetW83194BR-903 Datasheet (PDF)

W83194BR-903 & W83194BG-903 STEPLESS VIA PT/PM MAIN CLOCK GENERATOR www.DataSheet4U.com Date: 5/2/2006 Revision: 1.0 W83194BR-903/W83194BG-903 W83194BR-903 Datasheet Revision History PAGES DATES VERSION WEB VERSION MAIN CONTENTS 1 2 3 4 5 6 7 8 9 1 0 n.a. n.a. 6 7,9,19 09/07/03 10/28/03 12/18/03 05/02/06 0.5 0.6 0.7 1.0 n.a. n.a. n.a. n.a. 1.0 All of the versions before 0.50 are for internal use. First published preliminary version. Modify frequency table Correction IC version, correctio.

  W83194BR-903   W83194BR-903


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W83194BR-903 & W83194BG-903 STEPLESS VIA PT/PM MAIN CLOCK GENERATOR www.DataSheet4U.com Date: 5/2/2006 Revision: 1.0 W83194BR-903/W83194BG-903 W83194BR-903 Datasheet Revision History PAGES DATES VERSION WEB VERSION MAIN CONTENTS 1 2 3 4 5 6 7 8 9 1 0 n.a. n.a. 6 7,9,19 09/07/03 10/28/03 12/18/03 05/02/06 0.5 0.6 0.7 1.0 n.a. n.a. n.a. n.a. 1.0 All of the versions before 0.50 are for internal use. First published preliminary version. Modify frequency table Correction IC version, correction description and default value Update on Web and add lead free part some -I- Publication Release Date: May 2006 Revision 1.0 W83194BR-903/W83194BG-903 Table of Contents1. 2. 3. 4. 5. GENERAL DESCRIPTION .............................................................................................................. 1 PRODUCT FEATURES................................................................................................................... 1 PIN CONFIGURATION.................................................................................................................... 2 BLOCK DIAGRAM........................................................................................................................... 2 PIN DESCRIPTION ......................................................................................................................... 3 5.1 Crystal I/O...........................................................................................................................................3 5.2 CPU, AGP, and PCI Clock Outputs...................................................................................................3 5.3 Fixed Frequency Outputs...................................................................................................................4 5.4 I2C Control Interface...........................................................................................................................4 5.5 Power Management Pins...................................................................................................................5 5.6 IREF selects Function........................................................................................................................5 5.7 Power Pins .........................................................................................................................................5 6. 7. FREQUENCY SELECTION BY HARDWARE OR SOFTWARE..................................................... 6 I2C CONTROL AND STATUS REGISTERS.................................................................................... 7 7.1 Register 0: Frequency Select (Default = 10h)...................................................................................7 7.2 Register 1: CPU Clock (1 = Enable, 0 = Stopped) (Default: E2h)....................................................7 7.3 Register 2: PCI Clock (1 = Enable, 0 = Stopped) (Default: FFh)......................................................8 7.4 Register 3: PCI, AGP Clock (1 = Enable, 0 = Stopped) (Default: FFh)............................................8 7.5 Register 4: 24_48MHz, 48MHz, REF, 25MHz Control (1 = Enable, 0 = Stopped) (Default: BFh)..8 7.6 Register 5: Watchdog Control (Default: 02h) ....................................................................................9 7.7 Register 6: Reserved (Default: 50h) (Read Only) .............................................................................9 7.8 Register 7: Winbond Chip ID (Default: 70h) (Read Only)...............................................................10 7.9 Register 8: M/N Program (Default: 90h)..........................................................................................10 7.10 Register 9: M/N Program (Default: 7Ah) .........................................................................................10 7.11 Register 10: M/N Program (Default: BBh).......................................................................................11 7.12 Register 11: Spread Spectrum Programming (Default: 0Bh) .........................................................11 7.13 Register 12: Divisor and Step-less Enable Control (Default: FBh).................................................11 7.14 Register 13: Divisor and Step-less Enable Control (Default: 0Fh) .................................................12 7.15 Register 14: Control (Default: 0Ah)..................................................................................................12 7.16 Register 15: SST & Skew Control (Default: 2Ch) ...........................................................................13 7.17 Register 16: Skew Control (Default: 24h)........................................................................................13 7.18 Register 17: Slew rate Control (Default: 00h)..................................................................................13 7.19 Register 18: Slew rate Control (Default: 00h)........................................


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