pc87307 National Semiconductor Corporation, pc87307 Datasheet - Page 153

• Manufacturer Part Number: pc87307
• Description: Plug And Play Compatible And Pc97 Compliant Superi/o
• Manufacturer: National Semiconductor Corporation

Prescaler Value
Baud Rate
1500000
115200
230400
460800
750000
921600
14400
19200
28800
38400
57600
134.5
1200
1800
2000
2400
3600
4800
7200
9600
150
300
600
110
50
75
UART1 and UART2 (with IR) (Logical Devices 5 and 6)
Divisor
TABLE 7-14. Baud Generator Divisor Settings
2304
1536
1047
857
768
384
192
96
64
58
48
32
24
16
12
---
---
---
---
---
8
6
4
3
2
1
13
% Error
0.16%
0.16%
0.19%
0.10%
0.16%
0.16%
0.16%
0.16%
0.16%
0.53%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
---
---
---
---
---
153
Divisor
18461
12307
8391
6863
6153
3076
1538
769
512
461
384
256
192
128
96
64
48
32
24
16
---
---
8
4
2
1
1.625
% Error
0.00%
0.01%
0.01%
0.00%
0.01%
0.03%
0.03%
0.03%
0.16%
0.12%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
---
---
Divisor
30000
20000
13636
10000
11150
5000
2500
1250
833
750
625
416
312
208
156
104
78
52
39
26
13
---
---
---
2
1
1
% Error
0.00%
0.00%
0.00%
0.02%
0.00%
0.00%
0.00%
0.00%
0.04%
0.00%
0.00%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.00%
0.00%
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---
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