FDC37C93XFR Ver la hoja de datos (PDF) - SMSC -> Microchip

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FDC37C93XFR

Plug and Play Compatible Ultra I/OÔ Controller with Fast IR

SMSC -> Microchip 

PIN NO.

11

13

9

10

18

5,6

7,4

16

15

14

3,2

19,20

145

146

148

149

150

147

152

151

155

156

158

159

160

157

154

153

DESCRIPTION OF PIN FUNCTIONS

NAME

SYMBOL

Write Disk Data

nWDATA

Head Select (1 = side 0)

nHDSEL

Step Direction (1 = out)

nDIR

Step Pulse

nSTEP

Disk Change

nDSKCHG

Drive Select Lines

nDS[1:0]

Motor On Lines

nMTR[1:0]

Write Protected

nWPROT

Track 0

nTR0

Index Pulse Input

nINDEX

Drive Density Select [1:0]

DRVDEN [1:0]

Media ID inputs. In floppy enhanced mode 2 these

inputs are the media ID [1:0] inputs. (Note 4)

MID[1:0]

SERIAL PORT 1 INTERFACE

Receive Serial Data 1

RXD1

Transmit Serial Data 1

TXD1

Request to Send 1

nRTS1

Clear to Send 1

nCTS1

Data Terminal Ready 1

nDTR1

Data Set Ready 1

nDSR1

Data Carrier Detect 1

nDCD1

Ring Indicator 1

nRI1

SERIAL PORT 2 INTERFACE

Receive Serial Data 2 (Note 4)

RXD2

Transmit Serial Data 2 (Note 4)

TXD2

Request to Send 2 (Note 4)

nRTS2

Clear to Send 2 (Note 4)

nCTS2

Data Terminal Ready 2 (Note 4)

nDTR2

Data Set Ready 2 (Note 4)

nDSR2

Data Carrier Detect 2 (Note 4)

nDCD2

Ring Indicator 2 (Note 4)

nRI2

BUFFER TYPE

OD48

OD48

OD48

OD48

IS

OD48

OD48

IS

IS

IS

OD48

IS

I

O4

O4

I

O4

I

I

I

I

O4

O4

I

O4

I

I

I

6

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