FDC37B777 datasheet(22/196 Pages) SMSC

Part #	FDC37B777

Description	ENHANCED SUPER I/O CONTROLLER WITH WAKE UP FEATURES

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Manufacturer	SMSC [SMSC Corporation]

Direct Link	http://www.smsc.com

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Table 9 - Data Rates

DRIVE RATE

DATA RATE

DENSEL

DRATE(1)

DRT1

DRT0

SEL1

SEL0

MFM

FM

1

0

1

1Meg

---

1

0

500

250

1

0

1

300

150

0

1

0

1

0

250

125

0

1

0

1

1Meg

---

1

0

1

0

500

250

1

0

1

0

1

500

250

0

1

0

1

0

250

125

0

1

0

1

0

1

1Meg

---

1

0

500

250

1

0

1

0

1

2Meg

---

0

1

0

1

0

250

125

0

1

0

Drive Rate Table (Recommended) 00 = 360K, 1.2M, 720K, 1.44M and 2.88M Vertical Format

01 = 3-Mode Drive

10 = 2 Meg Tape

Note 1: The DRATE and DENSEL values are mapped onto the DRVDEN pins.

Table 10 - DRVDEN Mapping

DT1

DT0

DRVDEN1 (1)

DRVDEN0 (1)

DRIVE TYPE

0

DRATE0

DENSEL

4/2/1 MB 3.5"

2/1 MB 5.25" FDDS

2/1.6/1 MB 3.5" (3-MODE)

1

0

DRATE0

DRATE1

0

1

DRATE0

nDENSEL

PS/2

1

DRATE1

DRATE0

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