ST10F168-Q3 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'ST10F168-Q3' PDF : 74 Pages View PDF
ST10F168
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.
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.
ASC0
ASC0 supports full-duplex asynchronous commu-
nication at up to 781.25K Baud and half-duplex
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
56 000
38 400
19 200
9 600
4 800
2 400
1 200
600
95
±0.0%
+7.3% / -0.4%
+1.7% / -3.1%
+1.7% / -0.8%
+0.5% / -0.8%
+0.5% / -0.1%
+0.2% / -0.1%
+0.0% / -0.1%
+0.0% / -0.1%
+0.4%
0000h
000Ch / 000Dh
0013h / 0014h
0027h / 0028h
0050h/ 0051h
00A1h / 00A2h
0144h / 0145h
028Ah / 028Bh
0515h / 0516h
1FFFh / 1FFFh
520 833
56 000
38 400
19 200
9 600
4 800
2 400
1 200
600
75
63
±0.0%
+3.3% / -7.0%
+4.3% / -3.1%
+0.5% / -3.1%
+0.5% / -1.4%
+0.5% / -0.5%
+0.0% / -0.5%
+0.0% / -0.2%
+0.0% / -0.1%
+0.0% / -0.0%
+0.9%
0000h
0008h / 0009h
000Ch / 000Dh
001Ah / 001Bh
0035h / 0036h
006Bh / 006Ch
00D8h / 00D9h
01B1h / 01B2h
0363h / 0364h
1B1Fh / 1B20h
1FFFh / 1FFFh
34/74
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