z8f1621 ZiLOG Semiconductor, z8f1621 Datasheet - Page 132

• Manufacturer Part Number: z8f1621
• Description: High Performance 8-bit Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Table 61. UART Baud Rates
PS019921-0308
20.0 MHz System Clock
16.667 MHz System Clock
Desired Rate BRG Divisor Actual Rate Error
Desired Rate BRG Divisor Actual Rate Error
1250.0
1250.0
(kHz)
625.0
250.0
115.2
(kHz)
625.0
250.0
115.2
57.6
38.4
19.2
9.60
4.80
2.40
1.20
0.60
0.30
57.6
38.4
19.2
9.60
4.80
2.40
(Decimal)
(Decimal)
1042
2083
4167
130
260
521
109
217
434
11
22
33
65
18
27
54
1
2
5
1
2
4
9
1041.69
1250.0
(kHz)
625.0
250.0
(kHz)
520.8
260.4
57.87
113.6
115.7
56.8
37.9
19.2
9.62
4.81
2.40
1.20
0.60
0.30
38.6
19.3
9.56
4.80
2.40
-16.67
-16.67
-1.36
-1.36
-1.36
-0.03
-0.03
-0.01
-0.45
-0.83
0.00
0.00
0.16
4.17
0.47
0.47
0.47
0.00
0.16
0.16
0.02
0.47
0.01
(%)
(%)
18.432 MHz System Clock
11.0592 MHz System Clock
Desired
Desired
1250.0
1250.0
625.0
250.0
625.0
250.0
(kHz)
115.2
(kHz)
115.2
Rate
Rate
57.6
38.4
19.2
9.60
4.80
2.40
1.20
0.60
0.30
57.6
38.4
19.2
9.60
4.80
2.40
Z8 Encore! XP
(Decimal)
(Decimal)
Divisor
Divisor
BRG
1920
3840
BRG
120
240
480
960
N/A
144
288
10
20
30
60
12
18
36
72
1
2
5
1
3
6
Product Specification
Actual Rate Error
Actual Rate Error
1152.0
®
576.0
230.4
691.2
230.4
(kHz)
115.2
(kHz)
115.2
57.6
38.4
19.2
9.60
4.80
2.40
1.20
0.60
0.30
57.6
38.4
19.2
9.60
4.80
2.40
N/A
F64XX Series
-7.84%
-7.84%
-7.84%
10.59
-7.84
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
N/A
(%)
(%)
UART
118