參數(shù)資料
型號： MC80F0216K
廠商： Electronic Theatre Controls, Inc.
元件分類： 8位微控制器
英文描述： 8-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述： 8位單晶片微控制器
文件頁數(shù)： 87/128頁
文件大?。?/td> 1408K
代理商： MC80F0216K
Preliminary
MC80F0208/16/24
MAR. 2005 Ver 0.2
83
17.4 Relationship between main clock and baud rate
The transmit/receive clock that is used to generate the baud rate
is obtained by dividing the main system clock. Transmit/Receive
clock generation for baud rate is made by using main system
clock which is divided. The baud rate generated from the main
system clock is determined according to the following formula.
Figure 17-9 Relationship between main clock and Baud Rate
Baud Rate
(bps)
f
XIN
=11.0592M
f
XIN
=10.0M
f
XIN
=8.0M
f
XIN
=6.0M
f
XIN
=4.0M
f
XIN
=2.0M
BRGCR
ERR
(%)
BRGCR
ERR
(%)
BRGCR
ERR
(%)
BRGCR
ERR
(%)
BRGCR
ERR
(%)
BRGCR
ERR
(%)
600
-
-
-
-
-
-
-
-
7AH
0.16
6AH
0.16
1200
-
-
-
-
7AH
0.16
74H
2.34
6AH
0.16
5AH
0.16
2400
72H
0.00
70H
1.73
6AH
0.16
64H
2.34
5AH
0.16
4AH
0.16
4800
62H
0.00
60H
1.73
5AH
0.16
54H
2.34
4AH
0.16
3AH
0.16
9600
52H
0.00
50H
1.73
4AH
0.16
44H
2.34
3AH
0.16
2AH
0.16
19200
42H
0.00
40H
1.73
3AH
0.16
34H
2.34
2AH
0.16
1AH
0.16
31250
36H
0.53
34H
0.00
30H
0.00
28H
0.00
20H
0.00
10H
0.00
38400
32H
0.00
30H
1.73
2AH
0.16
24H
2.34
1AH
0.16
-
-
57600
28H
0.00
26H
1.35
21H
2.11
1AH
0.16
11H
2.12
-
-
76800
22H
0.00
20H
1.73
1AH
0.16
14H
2.34
-
-
-
-
115200
18H
0.00
16H
1.36
11H
2.12
-
-
-
-
-
-
2. f
SCK
: Source clock for 5 bit counter
3. n : Value set via TPS00 to TPS02 ( 0
≤
n
≤
7 )
4. k : Source clock for 5 bit counter ( 0
≤
k
≤
14 )
Remarks 1. f
XIN
:
Main system clock oscillation frequency
When ACLK is selected as the source clock of the 5-bit counter,
substitute the input clock frequency to ACLK pin for in the above expression.
Baud Rate = f
XIN
/ ( 2
n+1
(k+16) )
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