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ATSAM4S-XPLD
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SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
35.8.2 USART Control Register (SPI_MODE)
Name:
US_CR (SPI_MODE)
Address:
0x40024000 (0), 0x40028000 (1)
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 OVRE, UNRE in US_CSR.
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
RCS
FCS
–
–
15
14
13
12
11
10
9
8
–
–
–
–
–
–
–
RSTSTA
7
6
5
4
3
2
1
0
TXDIS
TXEN
RXDIS
RXEN
RSTTX
RSTRX
–
–