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LPC47M172_07 Datasheet

  • LPC47M172_07

  • SMSC Corporation [Advanced I/O Controller with Motherboard ...

  • SMSC   SMSC

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Advanced I/O Controller with Motherboard GLUE Logic
Datasheet
PIN#
121
122
124
125
NAME
(NOTE 1)
nDSR2
nRTS2
nCTS2
nDTR2
DESCRIPTION
126
nDCD2
127
128
33
IRRX2
IRTX2
SLCT
34
PE
35
BUSY
36
nACK
37
38
39
40
41
42
43
44
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
Active low Data Set Ready input for serial
port 2. See description for nDSR1.
O8
Active low Request to Send output for
Serial Port 2. See description for nRTS1.
IPD
Active low Clear to Send input for serial
port 2. See description for nCTS1.
O8
Active low Data Terminal Ready output
for serial port 2. See description for
nDTR1.
IPD
Active low Data Carrier Detect input for
serial port 2. See description for nDCD1.
INFRARED INTERFACE (2)
Infrared receive input.
ISPD_400
Infrared transmit output.
O12
PARALLEL PORT INTERFACE (17)
I
This high active input 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.
I
Another status input 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.
I
This is a status input 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.
I
A low active input 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.
Port Data 7 I/O
IOP14
Port Data 6 I/O
IOP14
Port Data 5 I/O
IOP14
Port Data 4 I/O
IOP14
Port Data 3 I/O
IOP14
Port Data 2 I/O
IOP14
Port Data 1 I/O
IOP14
Port Data 0 I/O
IOP14
BUFFER
NAME
(NOTE 2)
IPD
PWR
WELL
(NOTE 3)
VCC
VCC
VCC
VCC
NOTES
10
10
VCC
10
VCC
VCC
VCC
10
9
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
SMSC/Non-SMSC Register Sets (Rev.
01-11-07)
Page 18
SMSC LPC47M172
DATASHEET

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