W83637HF Datasheet, PDF (114/149 Pages) Winbond – LPC I/O

W83637HF
CRF5 (Default 0x00)
FDD1 Selection: Same as FDD0 of CRF4.
TABLE A
Drive Rate Table
Select
DRTS1 DRTS0
0
0
0
1
1
0
Data Rate
DRATE1
1
0
0
1
1
0
0
1
1
0
0
1
DRATE0
1
0
1
0
1
0
1
0
1
0
1
0
Selected Data Rate
MFM
1Meg
500K
300K
250K
1Meg
500K
500K
250K
1Meg
500K
2Meg
250K
FM
---
250K
150K
125K
---
250K
250K
125K
---
250K
---
125K
SELDEN
1
1
0
0
1
1
0
0
1
1
0
0
TABLE B
DTYPE0
0
DTYPE1
0
DRVDEN0(pin 2)
SELDEN
0
1
1
0
1
1
DRATE1
SELDEN
DRATE0
DRVDEN1(pin 3)
DRATE0
DRATE0
DRATE0
DRATE1
DRIVE TYPE
4/2/1 MB 3.5”“
2/1 MB 5.25”
2/1.6/1 MB 3.5” (3-MODE)
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Publication Release Date: June 25, 2003
Revision 1.3