TL16C554A_13 Datasheet, PDF (30/46 Pages) Texas Instruments – ASYNCHRONOUS-COMMUNICATIONS ELEMENT

TL16C554A, TL16C554AI
ASYNCHRONOUS-COMMUNICATIONS ELEMENT
SLLS509E − AUGUST 2001 − REVISED JUNE 2010
PRINCIPLES OF OPERATION
programmable baud-rate generator (continued)
Table 9. Baud Rates Using a 1.8432-MHz Crystal
BAUD RATE
DESIRED
50
75
110
134.5
150
300
600
1200
1800
2000
2400
3600
4800
7200
9600
19200
38400
56000
DIVISOR (N) USED TO
GENERATE 16 × CLOCK
2304
1536
1047
857
768
384
192
96
64
58
48
32
24
16
12
6
3
2
PERCENT ERROR DIFFERENCE
BETWEEN DESIRED AND ACTUAL
—
—
0.026
0.058
—
—
—
—
—
0.690
—
—
—
—
—
—
—
2.860
Table 10. Baud Rates Using a 3.072-MHz Crystal
BAUD RATE
DESIRED
50
75
110
134.5
150
300
600
1200
1800
2000
2400
3600
4800
7200
9600
19200
38400
DIVISOR (N) USED TO
GENERATE 16 × CLOCK
3840
2560
1745
1428
1280
640
320
160
107
96
80
53
40
27
20
10
5
PERCENT ERROR DIFFERENCE
BETWEEN DESIRED AND ACTUAL
—
—
0.026
0.034
—
—
—
—
0.312
—
—
0.628
—
1.230
—
—
—
30
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