Datasheet

 2017 Microchip Technology Inc. DS60001516A-page 475
SAM9G20
31.7.1 USART Control Register
Name:US_CR
Access:Write-only
RSTRX: Reset Receiver
0: No effect.
1: Resets the receiver.
RSTTX: Reset Transmitter
0: No effect.
1: Resets the transmitter.
RXEN: Receiver Enable
0: No effect.
1: Enables the receiver, if RXDIS is 0.
RXDIS: Receiver Disable
0: No effect.
1: Disables the receiver.
TXEN: Transmitter Enable
0: No effect.
1: Enables the transmitter if TXDIS is 0.
TXDIS: Transmitter Disable
0: No effect.
1: Disables the transmitter.
RSTSTA: Reset Status Bits
0: No effect.
1: Resets the status bits PARE, FRAME, OVRE, MANERR and RXBRK in US_CSR.
STTBRK: Start Break
0: No effect.
1: Starts transmission of a break after the characters present in US_THR and the Transmit Shift Register have been transmitted. No effect
if a break is already being transmitted.
STPBRK: Stop Break
0: No effect.
1: Stops transmission of the break after a minimum of one character length and transmits a high level during 12-bit periods. No effect if no
break is being transmitted.
31 30 29 28 27 26 25 24
––––––––
23 22 21 20 19 18 17 16
––––RTSDISRTSENDTRDISDTREN
15 14 13 12 11 10 9 8
RETTO RSTNACK RSTIT SENDA STTTO STPBRK STTBRK RSTSTA
76543210
TXDIS TXEN RXDIS RXEN RSTTX RSTRX – –