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W83977EF-AW Datasheet(PDF) 95 Page - Winbond |
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W83977EF-AW Datasheet(HTML) 95 Page - Winbond |
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95 / 142 page  W83977EF-AW/W83977EG-AW Publication Release Date: Apr. 2006 -93- Revision 1.2 CRF5 (Default 0x00) FDD1 Selection: Same as FDD0 of CRF4. TABLE A DRIVE RATE TABLE SELECT DATA RATE SELECTED DATA RATE SELDEN DRTS1 DRTS0 DRATE1 DRATE0 MFM FM CRF0 BIT 0=0 1 1 1Meg --- 1 0 0 0 0 500K 250K 1 0 1 300K 150K 0 1 0 250K 125K 0 1 1 1Meg --- 1 0 1 0 0 500K 250K 1 0 1 500K 250K 0 1 0 250K 125K 0 1 1 1Meg --- 1 1 0 0 0 500K 250K 1 0 1 2Meg --- 0 1 0 250K 125K 0 Note:Refer to CRF2 for SELDEN value in the cases when CRF0, bit0=1. TABLE B DMOD0 DMOD1 DRVDEN0(PIN 2) DRVDEN1(PIN 3) DRIVE TYPE 0 0 SELDEN DRATE0 4/2/1 MB 3.5”“ 2/1 MB 5.25” 2/1.6/1 MB 3.5” (3-MODE) 0 1 DRATE1 DRATE0 1 0 SELDEN DRATE0 1 1 DRATE0 DRATE1 |
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