FDC37M707QFP Standard Microsystems (SMSC), FDC37M707QFP Datasheet - Page 75
FDC37M707QFP
Manufacturer Part Number
FDC37M707QFP
Description
Manufacturer
Standard Microsystems (SMSC)
Datasheet
1.FDC37M707QFP.pdf
(194 pages)
Specifications of FDC37M707QFP
Pin Count
100
Lead Free Status / RoHS Status
Not Compliant
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With FCR bit 0 = "1" resetting IER bits 0, 1, 2 or
3 or all to zero puts the UART in the FIFO
Polled Mode of operation. Since the RCVR and
XMITTER are controlled separately, either one
or both can be in the polled mode of operation.
In this mode, the user's program will check
RCVR and XMITTER status via the LSR. LSR
definitions for the FIFO Polled Mode are as
follows:
-
-
Note
Note
BAUD RATE
DESIRED
Bit 0=1 as long as there is one byte in the
RCVR FIFO.
Bits 1 to 4 specify which error(s) have
occurred. Character error status is handled
1
2
115200
230400
460800
: 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.
19200
38400
57600
Table 31 - Baud Rates Using 1.8462 MHz Clock for <= 38.4K; Using 1.8432MHz Clock
134.5
1200
1800
2000
2400
3600
4800
7200
9600
for 115.2k ; Using 3.6864MHz Clock for 230.4k; Using 7.3728 MHz Clock for 460.8k
110
150
300
600
50
75
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
75
BETWEEN DESIRED AND ACTUAL
PERCENT ERROR DIFFERENCE
-
-
-
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.
mode, the IIR is not affected since EIR bit
2=0.
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.
0.001
0.004
0.005
0.030
0.16
0.16
0.16
0.16
-
-
-
-
-
-
-
-
-
-
-
-
-
1
HIGH SPEED
BIT
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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