NXP Semiconductors
QN902x
User Manual of QN902x
UM10996
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2018. All rights reserved.
User Manual
Rev 1.3
— 05 November 2018
100 of 128
22
RW
0
UART_IE
UART interrupt enable
0: General UART interrupts are disabled
1: General UART interrupts can be enabled
21
RW
0
BE_IE
Break error interrupt enable
0: Break error interrupt is disabled
1: Break error interrupt is enabled
20
RW
0
PE_IE
Parity error interrupt enable
0: Parity error interrupt is disabled
1: Parity error interrupt is enabled
19
RW
0
FE_IE
Framing error interrupt enable
0: Framing error interrupt is disabled
1: Framing error interrupt is enabled
18
RW
0
OE_IE
Overrun error interrupt enable
0: Overrun error interrupt is disabled
1: Overrun error interrupt is enabled
17
RW
0
TX_IE
Transmit status interrupt enable
0: Transmit status interrupt is disable
1: Transmit status interrupt is enabled
16
RW
0
RX_IE
Receive interrupt status enable
0: Receive interrupt status is disable
1: Receive interrupt status is enabled
15-12
RW
0
RSVD
Reserved
11
RW
1
OVS
Oversampling rate.
1 = indicates oversampling rate is 16
0 = indicates oversampling rate is 8
10
RW
0
CTS_EN
CTS hardware flow control enable.
0: CTS hardware flow control is disabled
1: CTS hardware flow control is enabled
9
RW
0
RTS_EN
RTS hardware flow control enable.
0: CTS hardware flow control is disabled
1: CTS hardware flow control is enabled
8
RW
0
BREAK
Send break.
Causes a break condition to be
transmitted to the receiving UART.
0: No effect on TXD output
1: Forces TXD output to 0, after completing
transmission of the current character. When TXD
line is idle, one frame low level is transmitted on
line if this bit is set to 1.
For normal use, this bit must be cleared to 0.
7
RW
1
LEVEL_INV
The level of start bit and stop bit
1 = indicates valid start bit is low level and valid
stop bit is high level
0 = indicates valid start bit is high level and valid
stop bit is low level
6
RW
0
STP2_EN
Two stop bits select.
0: 1 stop bit at end of the frame
1: 2 stop bits at the end of frame
5
RW
0
BIT_ORDER
MSB/LSB transmit/receive first
1 = LSB first in the data frame
0 = MSB first in the data frame
4
RW
0
PEN
Parity enable:
0 = parity is disabled and no parity bit added to
the data frame
1 = parity checking and generation is enabled.