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参数资料
型号： ST10F168-Q3
厂商： STMICROELECTRONICS
元件分类： 微控制器/微处理器
英文描述： 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP144
封装： 28 X 28 MM, PLASTIC, QFP-144
文件页数： 28/74页
文件大小： 479K
代理商： ST10F168-Q3
ST10F168
34/74
14 - SERIAL CHANNELS
Serial communication with other microcontrollers,
processors, terminals or external peripheral com-
ponents is provided by two serial interfaces: the
asynchronous
/
synchronous
serial
channel
(ASC0) and the high-speed synchronous serial
channel (SSC).
Two dedicated Baud rate generators set up all
standard Baud rates without the requirement of
oscillator tuning. For transmission, reception and
erroneous reception, 3 separate interrupt vectors
are provided for each serial channel.
ASC0
ASC0 supports full-duplex asynchronous commu-
nication at up to 781.25K Baud and half-duplex
synchronous communication up to 5M Baud at
25MHz system clock.
For asynchronous operation, the Baud rate gener-
ator provides a clock with 16 times the rate of the
established Baud rate.
Table 18 lists various commonly used Baud rates
together with the required reload values and the
deviation
errors
compared
to the
intended
Baud rate.
For synchronous operation, the Baud rate genera-
tor provides a clock with 4 times the rate of the
established Baud rate.
Table 18 : Commonly used Baud rates by reload value and deviation errors
S0BRS = ‘0’, fCPU = 25MHz
S0BRS = ‘1’, fCPU = 25MHz
Baud Rate (Baud)
Deviation Error
Reload Value
Baud Rate (Baud)
Deviation Error
Reload Value
781 250
±0.0%
0000h
520 833
±0.0%
0000h
56 000
+7.3% / -0.4%
000Ch / 000Dh
56 000
+3.3% / -7.0%
0008h / 0009h
38 400
+1.7% / -3.1%
0013h / 0014h
38 400
+4.3% / -3.1%
000Ch / 000Dh
19 200
+1.7% / -0.8%
0027h / 0028h
19 200
+0.5% / -3.1%
001Ah / 001Bh
9 600
+0.5% / -0.8%
0050h/ 0051h
9 600
+0.5% / -1.4%
0035h / 0036h
4 800
+0.5% / -0.1%
00A1h / 00A2h
4 800
+0.5% / -0.5%
006Bh / 006Ch
2 400
+0.2% / -0.1%
0144h / 0145h
2 400
+0.0% / -0.5%
00D8h / 00D9h
1 200
+0.0% / -0.1%
028Ah / 028Bh
1 200
+0.0% / -0.2%
01B1h / 01B2h
600
+0.0% / -0.1%
0515h / 0516h
600
+0.0% / -0.1%
0363h / 0364h
95
+0.4%
1FFFh / 1FFFh
75
+0.0% / -0.0%
1B1Fh / 1B20h
63
+0.9%
1FFFh / 1FFFh
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