W83977EG-AW Datasheet, PDF (95/142 Pages) Nuvotem Talema – These products are not designed for use in life support appliances

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