LPC47M140-NC SMSC [SMSC Corporation], LPC47M140-NC Datasheet - Page 69
LPC47M140-NC
Manufacturer Part Number
LPC47M140-NC
Description
128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB
Manufacturer
SMSC [SMSC Corporation]
Datasheet
1.LPC47M140-NC.pdf
(205 pages)
- Current page: 69 of 205
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SMSC DS – LPC47M14X
ADDR = 0
DLAB = 0
ADDR = 0
DLAB = 0
ADDR = 1
DLAB = 0
ADDR = 2
ADDR = 2
ADDR = 3
ADDR = 4
ADDR = 5
Interrupt Enable Register
Interrupt Identification Reg.
FIFO Control
Line Control Reg.
MODEM Control Reg.
Line Status Reg.
MODEM Status Reg.
TXD1, TXD2
INTRPT (RCVR errs)
INTRPT (RCVR Data Ready)
INTRPT (THRE)
OUT2B
RTSB
DTRB
OUT1B
RCVR FIFO
XMIT FIFO
ADDRESS*
REGISTER
REGISTER/SIGNAL
Table 33 – Register Summary for an Individual UART Channel
Receive Buffer Register (Read Only)
Transmitter Holding Register (Write
Only)
Interrupt Enable Register
Interrupt Ident. Register (Read Only)
FIFO Control Register (Write Only)
Line Control Register
MODEM Control Register
Line Status Register
REGISTER NAME
RESET
RESET
RESET
RESET
RESET
RESET
RESET
RESET
RESET/Read LSR
RESET/Read RBR
RESET/ReadIIR/Write THR
RESET
RESET
RESET
RESET
RESET/
FCR1*FCR0/_FCR0
RESET/
FCR1*FCR0/_FCR0
RESET CONTROL
Page 69
REGISTER
SYMBOL
(Note 7)
MCR
RBR
THR
FCR
LCR
LSR
IER
IIR
All bits low
Bit 0 is high; Bits 1 - 7 low
All bits low
All bits low
All bits low
All bits low except 5, 6 high
Bits 0 - 3 low; Bits 4 - 7 input
High
Low
Low
Low
High
High
High
High
All Bits Low
All Bits Low
Data Bit 0
(Note 1)
Data Bit 0
Enable
Received
Data
Available
Interrupt
(ERDAI)
"0" if
Interrupt
Pending
FIFO Enable RCVR FIFO
Word
Length
Select Bit 0
(WLS0)
Data
Terminal
Ready
(DTR)
Data Ready
(DR)
RESET STATE
BIT 0
Data Bit 1
Data Bit 1
Enable
Transmitter
Holding
Register
Empty
Interrupt
(ETHREI)
Interrupt ID
Bit
Reset
Word
Length
Select Bit 1
(WLS1)
Request
Send (RTS)
Overrun
Error (OE)
BIT 1
Rev. 03/19/2001
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