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FDC37C93XAPM Arkusz danych(PDF) 7 Page - SMSC Corporation |
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FDC37C93XAPM Arkusz danych(HTML) 7 Page - SMSC Corporation |
7 / 280 page 7 DESCRIPTION OF PIN FUNCTIONS PIN NO. NAME SYMBOL BUFFER TYPE 12 Write Gate nWGATE OD48 11 Write Disk Data nWDATA OD48 13 Head Select (1 = side 0) nHDSEL OD48 9 Step Direction (1 = out) nDIR OD48 10 Step Pulse nSTEP OD48 18 Disk Change nDSKCHG IS 5,6 Drive Select Lines nDS[1:0] OD48 7,4 Motor On Lines nMTR[1:0] OD48 16 Write Protected nWPROT IS 15 Track 0 nTR0 IS 14 Index Pulse Input nINDEX IS 3,2 Drive Density Select [1:0] DRVDEN [1:0] OD48 19,20 Media ID inputs. In floppy enhanced mode 2 these inputs are the media ID [1:0] inputs. (Note 4) MID[1:0] IS SERIAL PORT 1 INTERFACE 145 Receive Serial Data 1 RXD1 I 146 Transmit Serial Data 1 TXD1 O4 148 Request to Send 1 nRTS1 O4 149 Clear to Send 1 nCTS1 I 150 Data Terminal Ready 1 nDTR1 O4 147 Data Set Ready 1 nDSR1 I 152 Data Carrier Detect 1 nDCD1 I 151 Ring Indicator 1 nRI1 I SERIAL PORT 2 INTERFACE 155 Receive Serial Data 2 (Note 4) RXD2 I 156 Transmit Serial Data 2 (Note 4) TXD2 O4 158 Request to Send 2 (Note 4) nRTS2 O4 159 Clear to Send 2 (Note 4) nCTS2 I 160 Data Terminal Ready 2 (Note 4) nDTR2 O4 157 Data Set Ready 2 (Note 4) nDSR2 I |
Podobny numer części - FDC37C93XAPM |
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Podobny opis - FDC37C93XAPM |
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