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SLLS165G − JANUARY 1994 − REVISED MARCH 2006

26

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

PRINCIPLES OF OPERATION

programmable baud rate generator (continued)

Table 8. Baud Rates Using an 1.8432-MHz Crystal

BAUD RATE

DESIRED

DIVISOR (N) USED TO

GENERATE 16× CLOCK

PERCENT ERROR DIFFERENCE

BETWEEN DESIRED AND ACTUAL

50 2304 —

75 1536 —

110 1047 0.026

134.5 857 0.058

150 768 —

300 384 —

600 192 —

1200 96 —

1800 64 —

2000 58 0.690

2400 48 —

3600 32 —

4800 24 —

7200 16 —

9600 12 —

19200 6 —

38400 3 —

56000 2 2.860

Table 9. Baud Rates Using an 3.072-MHz Crystal

BAUD RATE

DESIRED

DIVISOR (N) USED TO

GENERATE 16× CLOCK

PERCENT ERROR DIFFERENCE

BETWEEN DESIRED AND ACTUAL

50 3840 —

75 2560 —

110 1745 0.026

134.5 1428 0.034

150 1280 —

300 640 —

600 320 —

1200 160 —

1800 107 0.312

2000 96 —

2400 80 —

3600 53 0.628

4800 40 —

7200 27 1.230

9600 20 —

19200 10 —

38400 5 —