Z8018x Family
MPU User Manual
142
Table 19. ASCI Baud Rate Selection
Sampling
Rate
Baud Rate (Example)
(BPS)
General
SS2 SS1 SS0 Divide Divide f = 6.144 f = 4.608 f = 3.072
Ratio Ratio MHz MHz MHz
Prescaler
Divide
Baud Rate
CKA
Clock
I/O Frequency
PS Ratio DR Rate
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
¸ 1
f ¸ 160
320
38400
19200
f ¸ 10
20
2
4
19200
9600
4800
2400
1200
600
9600
4800
2400
1200
600
300
—
640
40
0
16
8
1280
0
I
80
160
320
640
fc
16
32
64
—
¸ 1
2
2560
5120
10240
fc ¸ 16
0¸ 640
1280
0
f ¸ 10
—
—
9600
4800
2400
1200
600
4800
2400
1200
600
300
150
75
f ¸ 10
20
4
2560
40
8
5120
0
I
80
1
64
16
32
64
—
10240
20480
40960
fc ¸ 64
160
320
640
fc
300
150
—
—
—
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