Figure 246. Cts Flow Control - ST STM32F207 Series Reference Manual

Advanced arm-based 32-bit mcus

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Universal synchronous asynchronous receiver transmitter (USART)

Transmit data register

Special behavior of break frames: when the CTS flow is enabled, the transmitter does not

check the CTS input state to send a break.

Figure 246. CTS flow control

Writing data 3 in TDR

RM0033 Rev 9

Transmission of Data 3 is

delayed until CTS = 0

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