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Field
Name
R/W
Description
0
TXBF
R/W
Transmit Break Frame
0: Not transmit
1: Will transmit
This bit can be set by software and cleared by hardware when the
stop bit of the break frame is sent.
1
RXMUTEEN
R/W
Receive Mute Mode Enable
0: Normal working mode
1: Mute mode
This bit is set or cleared by software, or cleared by hardware when
wake-up sequence is detected.
USART must receive a data before it is put in the mute mode, so that
it can be detected and awakened by idle bus.
In the wake-up of address flag detection, if the RXBNEFLG bit is set,
the RXMUTEEN bit cannot be modified by software.
2
RXEN
R/W
Receive Enable
0: Disable
1: Enable, and start to detect the start bit on RX pin
3
TXEN
R/W
Transmit Enable
0: Disable
1: Enable
Except in smart card mode, if there is a 0 pulse on this bit at any time
of transmitting data, an idle bus will be transmitted after the current
data is transmitted.
After this bit is set, the data will be transmitted after one-bit time.
4
IDLEIEN
R/W
IDLE Interrupt Enable
0: Disable
1: Generate an interrupt when IDLEFLG is set
5
RXBNEIEN
R/W
Receive Buffer Not Empty Interrupt Enable
0: Disable
1: Generate an interrupt when OVREFLG or RXBNEFLG is set
6
TXCIEN
R/W
Transmit Complete Interrupt Enable
0: Disable
1: Generate an interrupt when TXCFLG is set
7
TXBEIEN
R/W
Transmit Buffer Empty Interrupt Enable
0: Interrupt generation is disabled
1: Generate an interrupt when TXBEFLG is set
8
PEIEN
R/W
Parity Error interrupt Enable
0: Interrupt generation is disabled
1: Generate an interrupt when PEFLG is set
9
PCFG
R/W
Odd/Even Parity Configure
0: Even parity check
1: Odd parity check
The selection will not take effect until the current transmission of
bytes is completed.