ST10F272B_12 STMICROELECTRONICS [STMicroelectronics], ST10F272B_12 Datasheet - Page 76

• Manufacturer Part Number: ST10F272B_12
• Description: 16-bit MCU with 256 Kbyte Flash memory and 12/20 Kbyte RAM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Serial channels
Table 43.
Table 44.
Note:
15.4
76/188
Baud rate (baud)
Baud rate (baud)
8 000 000
112 000
56 000
38 400
19 200
9 600
4 800
2 400
1 200
900
612
977
ASC synchronous baud rates by reload value and deviation errors (f
ASC synchronous baud rates by reload value and deviation errors (f
The deviation errors given in the
errors use a Baud rate crystal (providing a multiple of the ASC0 sampling frequency)
High speed synchronous serial interfaces
The High-Speed Synchronous Serial Interfaces (SSC0 and SSC1) provides flexible high-
speed serial communication between the ST10F272 and other microcontrollers,
microprocessors or external peripherals.
The SSCx supports full-duplex and half-duplex synchronous communication. The serial
clock signal can be generated by the SSCx itself (master mode) or be received from an
external master (slave mode). Data width, shift direction, clock polarity and phase are
programmable.
This allows communication with SPI-compatible devices. Transmission and reception of data
is double-buffered. A 16-bit Baud rate generator provides the SSCx with a separate serial
clock signal. The serial channel SSCx has its own dedicated 16-bit Baud rate generator with
16-bit reload capability, allowing Baud rate generation independent from the timers.
S0BRS = ‘0’, f
S0BRS = ‘0’, f
Deviation error
Deviation error
+0.6% / -0.8%
+0.6% / -0.1%
+0.2% / -0.3%
+0.2% / -0.1%
+0.0% / -0.1%
0.0% / 0.0%
0.0% / 0.0%
0.0% / 0.0%
0.0% / 0.0%
0.0% / 0.0%
0.0% / 0.0%
0.0% / 0.0%
CPU
CPU
= 40 MHz
= 64 MHz
Reload value
Reload value
1FFB / 1FFC
1FE8 / 1FE9
00CF / 00D0
0D04 / 0D05
1A09 / 1A0A
15B2 / 15B3
008D / 008E
019F / 01A0
0000 / 0000
0046 / 0047
0340 / 0341
0681 / 0682
(hex)
(hex)
Doc ID 11917 Rev 3
Table 43
Baud rate (baud)
Baud rate (baud)
and
5 333 333
112 000
56 000
38 400
19 200
9 600
4 800
2 400
1 200
Table 44
600
407
900
652
S0BRS = ‘1’, f
S0BRS = ‘1’, f
are rounded. To avoid deviation
Deviation error
Deviation error
+1.3% / -0.8%
+0.3% / -0.8%
+0.6% / -0.1%
+0.3% / -0.1%
+0.1% / -0.1%
0.0% / -0.1%
0.0% / 0.0%
0.0% / 0.0%
0.0% / 0.0%
0.0% / 0.0%
0.0% / 0.0%
0.0% / 0.0%
0.0% / 0.0%
CPU
CPU
ST10F272B/ST10F272E
= 40 MHz
= 64 MHz
CPU
CPU
Reload value
Reload value
1FFD / 1FFE
08AD / 08AE
115B / 115C
15B2 / 15B3
002E / 002F
005E / 005F
022A / 022B
1FF2 / 1FF3
0089 / 008A
0000 / 0000
0114 / 0115
0456 / 0457
1724 / 1725
= 40 MHz)
= 64 MHz)
(hex)
(hex)