at75c220 ATMEL Corporation, at75c220 Datasheet - Page 76
at75c220
Manufacturer Part Number
at75c220
Description
Smart Internet Appliance Processor Siap
Manufacturer
ATMEL Corporation
Datasheet
1.AT75C220.pdf
(144 pages)
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Table 23. Clock Generator Table
Notes:
Figure 16. Baud Rate Generator
76
Required Baud Rate
(bps)
38400
57600
115200
MCKI/8
MCKI
SCK
2. For information on obtaining exact baud rates using the value of CD given above, the selected clock frequency must be
1. CD = clock driver
23,961,600 Hz (23.9616 MHz).
USCLKS [0]
0
1
USCLKS [1]
AT75C220
16 x baud rate
CD = 24 x 10
0
1
39.06
26.04
13.02
CLK
6
/
16-bit Counter
Actual CD
CD
39
26
13
USCLKS [1]
SYNC
OUT
0
Actual Baud Rate (bps)
CD
>1
1
0
115384.6
38461.5
57692.3
0
1
Divide
by 16
Error (bps)
184.6
61.5
92.3
SYNC
0
1
% Error
Baud Rate
0.16
0.16
0.16
Clock
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