LPC47N237-MD SMSC [SMSC Corporation], LPC47N237-MD Datasheet - Page 40

• Manufacturer Part Number: LPC47N237-MD
• Description: 3.3V I/O CONTROLLER FOR PORT REPLICATORS AND DOCKING STATIONS
• Manufacturer: SMSC [SMSC Corporation]

Note 8.2
Note 8.3
Revision 0.3 (10-26-04)
BAUD RATE
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
DESIRED
115200
230400
460800
19200
38400
57600
The percentage error for all baud rates, except where indicated otherwise, is 0.2%.
The High Speed bit is located in the Device Configuration Space.
1200
1800
2000
2400
3600
4800
7200
9600
REGISTER/SIGNAL
GENERATE 16X CLOCK
DIVISOR USED TO
32770
32769
96
64
58
48
32
24
16
12
Table 8.4 – UART Reset Function Table
6
3
2
1
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
DATASHEET
RESET CONTROL
Page 40
BETWEEN DESIRED AND ACTUAL
PERCENT ERROR DIFFERENCE
(NOTE 8.2
3.3v I/O Controller for Port Replicators and Docking Stations
0.005
0.030
0.16
0.16
0.16
0.16
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
-
-
-
-
-
-
-
-
)
RESET STATE
SPEED BIT
SMSC DS – LPC47N237
(NOTE 8.3
HIGH
X
X
X
X
X
X
X
X
X
X
X
X
1
1
)