FDC37C935-QS Standard Microsystems (SMSC), FDC37C935-QS Datasheet - Page 166

• Manufacturer Part Number: FDC37C935-QS
• Manufacturer: Standard Microsystems (SMSC)

Specifications of FDC37C935-QS

• Lead Free Status / RoHS Status: Supplier Unconfirmed

FDC Core Modifications
1.
2.
Drive Rate Table (Recommended)
00 = Regular drives and 2.88 vertical format
01 = 3-mode drive
10 = 2 meg tape
(1) DENSEL, DRATE1 and DRATE0 map onto output pins DRVDEN0 and DRVDEN1
DRIVE RATE TABLE
DRT1
0
0
0
0
0
0
0
0
1
1
1
1
FDC DMA Mode to default to Non-Burst Mode.
a.
FDC Core command to handle Density Select function. Implement to simplify support
of 3-Mode drives for users/customers.
Register xx Bit x is default to a x at powerup.
DRT0
0
0
0
0
1
1
1
1
0
0
0
0
SEL 1
DATA RATE
1
0
0
1
1
0
0
1
1
0
0
1
SEL 0
APPENDIX A
1
0
1
0
1
0
1
0
1
0
1
0
166
1Meg
1Meg
1Meg
2Meg
MFM
500
300
250
500
500
250
500
250
DATA RATE
250
150
125
250
250
125
250
125
FM
---
---
---
---
DENSEL
(1)
1
1
0
0
1
1
0
0
1
1
0
0
DRATE (1)
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0