LPC47M112 SMSC Corporation, LPC47M112 Datasheet - Page 67
LPC47M112
Manufacturer Part Number
LPC47M112
Description
ENHANCED SUPER I/O CONTROLLER WITH LPC INTERFACE
Manufacturer
SMSC Corporation
Datasheet
1.LPC47M112.pdf
(208 pages)
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Enhanced Super I/O Controller with LPC Interface
Datasheet
LINE CONTROL REGISTER (LCR)
Address Offset = 3H, DLAB = 0, READ/WRITE
SMSC DS – LPC47M112
MODE
ONLY
BIT 3
FIFO
0
0
Start LSB Data 5-8 bits MSB Parity Stop
BIT 2
IDENTIFICATION
0
0
INTERRUPT
REGISTER
BIT 1
1
0
BIT 0
0
0
PRIORITY
Third
Fourth
LEVEL
INTERRUPT SET AND RESET FUNCTIONS
Indication
Transmitter
Holding
Register Empty
MODEM
Status
INTERRUPT
Page 67
TYPE
Removed From or
Input to the RCVR
FIFO during the
last 4 Char times
and there is at
least 1 char in it
during this time
Transmitter
Holding Register
Empty
Clear to Send or
Data Set Ready or
Ring Indicator or
Data Carrier
Detect
INTERRUPT
SOURCE
Register
Reading the IIR
Register (if Source
of Interrupt) or
Writing the
Transmitter
Holding Register
Reading the
MODEM Status
Register
INTERRUPT
CONTROL
RESET
Rev. 02/02/2005
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