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VT8231 датащи(PDF) 25 Page - List of Unclassifed Manufacturers

номер детали VT8231
подробное описание детали  SOUTH BRIDGE PC99 COMPLIANT
PDF  132 Pages
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производитель  ETC [List of Unclassifed Manufacturers]
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VT8231 датащи(HTML) 25 Page - List of Unclassifed Manufacturers

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VT8231
Preliminary Revision 0.8 October 29, 1999
-19-
Pinouts
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Parallel Port Interface
Signal Name
Pin #
I/O
Signal Description
PINIT# / DIR#
B12
IO / O
Initialize. Initialize printer. Output in standard mode, I/O in ECP/EPP mode.
STROBE# / nc
A11
IO / -
Strobe. Output used to strobe data into the printer. I/O in ECP/EPP mode.
AUTOFD# / DRVEN0
E11
IO / O
Auto Feed. Output used to cause the printer to automatically feed one line after
each line is printed. I/O pin in ECP/EPP mode.
SLCTIN# / STEP#
D12
IO / O
Select In. Output used to select the printer. I/O pin in ECP/EPP mode.
SLCT / WGATE#
E13
I / O
Select. Status output from the printer. High indicates that it is powered on.
ACK# / DS1#
B14
I / O
Acknowledge. Status output from the printer. Low indicates that it has received
the data and is ready to accept new data
ERROR# / HDSEL#
F11
I / O
Error. Status output from the printer. Low indicates an error condition in the
printer.
BUSY / MTR1#
A14
I / O
Busy. Status output from the printer. High indicates not ready to accept data.
PE / WDATA#
D13
I / O
Paper End. Status output from the printer. High indicates that it is out of paper.
PD7 / nc,
PD6 / nc,
PD5 / nc,
PD4 / DSKCHG#,
PD3 / RDATA#,
PD2 / WRTPRT#,
PD1 / TRK00#,
PD0 / INDEX#
C14
A13
B13
C13
E12
A12
C12
D11
IO / -
IO / -
IO / -
IO / I
IO / I
IO / I
IO / I
IO / I
Parallel Port Data.
As shown by the alternate functions above, in mobile applications the parallel port pins can optionally be selected to function as a
floppy disk interface for attachment of an external floppy drive using the parallel port connector (see Super I/O Configuration
Index F6[5]).



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