IBM RT Series Hardware Reference Manual page 87

Figure 16 illustrates the use of the baud-rate generator with a frequency of 1.8432 MHz. For baud
rates of
19,200
and below, the error obtained is minimal.
Note: The maximum operating frequency of the baud generator is
3.1
MHz. The data rate should
never be greater than
19,200
baud.
Desired Divisor Used to Generate Percent Error
Baud 16x Clock Difference Between
Rate (Decimal)
(Hex)
Desired and Actual
50 2304 900
-
75 1536 600
-
110 1047 417 0.026
134.5
857 359
0.058
150 786 300
-
300 384 180
-
600 192
CO
-
1200
96 60
-
1800 64 40
-
2000
58 3A 0.69
2400 48 30
-
3600 32 20
-
4800
24 18
-
7200 16 10
-
9600 12
C
-
19200 6 6
-
Figure 16.
Baud Rates at 1.8432 MHz
5080 Peripheral Adapter 31