Table 19. Asci Baud Rate Selection - ZiLOG Z8018 Series User Manual

Z8018x
Family MPU User Manual
142
Sampling
Prescaler Rate
Divide
PS Ratio DR Rate
0
φ ÷ 10
0
1
UM005004-0918
Table 19. ASCI Baud Rate Selection
Baud Rate
SS2 SS1 SS0 Divide
Ratio
0 0 0
0 0 1
0 1 0
16
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
0 0 0
0 0 1
0 1 0
0 1 1
64
1 0 0
1 0 1
1 1 0
1 1 1
Baud Rate (Example)
General
φ = 6.144
Divide
Ratio MHz
÷1 φ ÷ 160
38400
2 320 19200
4 640 9600
8 1280 4800
16 2560 2400
32 5120 1200
64 10240 600
fc ÷ 16
— —
÷1
0÷640 9600
2 1280 4800
4 2560 2400
8 5120 1200
16 10240 600
32 20480 300
64 40960 150
fc ÷ 64
— —
(BPS)
φ = 4.608 φ = 3.072
MHz MHz I/O
19200
9600
4800
2400 0
1200
600
300
— — I
4800
2400
1200
600 0
300
150
75
— — I
CKA
Clock
Frequency
φ ÷ 10
20
40
80
160
320
640
fc
φ ÷ 10
20
40
80
160
320
640
fc