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STM8S Datasheet(PDF) 329 Page - STMicroelectronics

Part # STM8S
Description  STM8S Series and STM8AF Series 8-bit microcontrollers
PDF  467 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM8S Datasheet(HTML) 329 Page - STMicroelectronics

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RM0016
Universal asynchronous receiver transmitter (UART)
377
Figure 115. Configurable stop bits
Procedure:
1.
Program the M bit in UART_CR1 to define the word length.
2.
Program the number of stop bits in UART_CR3.
3.
Select the desired baud rate by programming the baud rate registers in the following
order:
a)
UART_BRR2
b)
UART_BRR1
4.
Set the TEN bit in UART_CR2 to enable transmitter mode.
5.
Write the data to send in the UART_DR register (this clears the TXE bit). Repeat this
for each data to be transmitted in case of single buffer.
6.
Once the last data is written to the UART_DR register, wait until TC is set to ‘1’, which
indicates that the last data transmission is complete. This last step is required, for
instance, to avoid last data transmission corruption when disabling the UART or
entering Halt mode.



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