LPC47B272-MS SMSC, LPC47B272-MS Datasheet - Page 63
LPC47B272-MS
Manufacturer Part Number
LPC47B272-MS
Description
IC CTRLR SUPER I/O LPC 100-QFP
Manufacturer
SMSC
Datasheet
1.LPC47B272-MS.pdf
(195 pages)
Specifications of LPC47B272-MS
Controller Type
I/O Controller
Interface
LPC
Voltage - Supply
3.3V
Current - Supply
15mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
100-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
638-1019
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Bit 5 indicates when the XMIT FIFO is empty.
Bit 6 indicates that both the XMIT FIFO and shift register are empty.
Bit 7 indicates whether there are any errors in the RCVR FIFO.
There is no trigger level reached or timeout condition indicated in the FIFO Polled Mode, however, the RCVR and XMIT
FIFOs are still fully capable of holding characters.
Note
Note
SMSC LPC47B27x
1
2
: 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.
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
134.5
1200
1800
2000
2400
3600
4800
7200
9600
110
150
300
600
50
75
REGISTER/SIGNAL
GENERATE 16X CLOCK
DIVISOR USED TO
32770
32769
2304
1536
1047
857
768
384
192
96
64
58
48
32
24
16
12
6
3
2
1
Table 31 - Reset Function
RESET
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
Table 30 - Baud Rates
RESET CONTROL
DATASHEET
BETWEEN DESIRED AND ACTUAL
- 63 -
PERCENT ERROR DIFFERENCE
0.001
0.004
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
See Note 1
See IR Transmit Pins on page 68
Low
Low
Low
High
High
High
High
All Bits Low
All Bits Low
-
-
-
-
-
-
-
-
-
-
-
-
-
RESET STATE
Rev. 04-17-07
1
SPEED BIT
HIGH
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1
1
2
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