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FDC37C669-MT Datasheet(PDF) 11 Page - Microchip Technology

Part # FDC37C669-MT
Description  PC 98/99 Compliant Super I/O Floppy Disk Controller
PDF  162 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

FDC37C669-MT Datasheet(HTML) 11 Page - Microchip Technology

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DESCRIPTION OF PIN FUNCTIONS
QFP/
TQFP
PIN NO.
NAME
SYMBOL
BUFFER
TYPE
DESCRIPTION
73
nPrinter Select
Input
nSLCTIN
OD24
0P24
This active low output selects the printer. This
is the complement of bit 3 of the Printer
Control Register.
Refer to Parallel Port description for use of this
pin in ECP and EPP mode.
74
nInitiate Output
nINIT
OD24
0P24
This output is bit 2 of the printer control
register.
This is used to initiate the printer
when low.
Refer to Parallel Port description for use of this
pin in ECP and EPP mode.
76
nAutofeed Output nAUTOFD
OD24
0P24
This output goes low to cause the printer to
automatically feed one line after each line is
printed.
The
nAUTOFD
output
is
the
complement of bit 1 of the Printer Control
Register.
Refer to Parallel Port description for use of this
pin in ECP and EPP mode.
77
nStrobe Output
nSTROBE
OD24
0P24
An active low pulse on this output is used to
strobe the printer data into the printer. The
nSTROBE output is the complement of bit 0 of
the Printer Control Register.
Refer to Parallel Port description for use of this
pin in ECP and EPP mode.
61
Busy
BUSY
I
This is a status output from the printer, a high
indicating that the printer is not ready to
receive new data. Bit 7 of the Printer Status
Register is the complement of the BUSY input.
Refer to Parallel Port description for use of
this pin in ECP and EPP mode.
62
nAcknowledge
nACK
I
A low active output from the printer indicating
that it has received the data and is ready to
accept new data. Bit 6 of the Printer Status
Register reads the nACK input.
Refer to
Parallel Port description for use of this pin in
ECP and EPP mode.



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