LPC47N267(2000) Ver la hoja de datos (PDF) - SMSC -> Microchip
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LPC47N267 Datasheet PDF : 180 Pages
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STQFP PIN #
NAME
SYMBOL
70
Port Data 2/ PD2/
BUFFER
TYPE PER
FUNCTION1
IOP14/
Port Data 2
DESCRIPTION
FDC Write
Protected
nWRTPRT
IS
See FDC Pin definition.
71
Port Data 3/ PD3/
IOP14/ Port Data 3
FDC Read
Disk Data
nRDATA
IS
See FDC Pin definition.
72
Port Data 4/ PD4/
IOP14/ Port Data 4
FDC Disk
Change
nDSKCHG
IS
See FDC Pin definition.
73
Port Data 5 PD5
IOP14 Port Data 5
74
Port Data 6/ PD6/
IOP14/ Port Data 6
FDC Motor nMTR0
OD14
See FDC Pin definition.
On 0
75
Port Data 7 PD7
IOP14 Port Data 7
77
Printer
SLCT/
Selected
Status/
I/
This high active output from the printer indicates
that it has power on. Bit 4 of the Printer Status
Register reads the SLCT input. Refer to Parallel
Port description for use of this pin in ECP and EPP
mode.
FDC Write
Gate
nWGATE
OD12
See FDC Pin definition.
78
Paper End/ PE/
I/
Another status output from the printer, a high
indicating that the printer is out of paper. Bit 5 of
the Printer Status Register reads the PE input.
Refer to Parallel Port description for use of this pin
in ECP and EPP mode.
FDC Write
Data
nWRDATA
OD12
See FDC Pin definition.
79
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.
FDC Motor
On 1
nMTR1
OD12
See FDC Pin definition.
80
Acknowledge/ 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.
FDC Drive
Select 1
nDS1
OD12
See FDC Pin definition.
SMSC DS – LPC47N267
Page 11
Rev. 10/23/2000
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