at91sam9g20-cu ATMEL Corporation, at91sam9g20-cu Datasheet - Page 349

• Manufacturer Part Number: at91sam9g20-cu
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

28.5.1
Name:
Access Type: Write-only
• RSTRX: Reset Receiver
0 = No effect.
1 = The receiver logic is reset and disabled. If a character is being received, the reception is aborted.
• RSTTX: Reset Transmitter
0 = No effect.
1 = The transmitter logic is reset and disabled. If a character is being transmitted, the transmission is aborted.
• RXEN: Receiver Enable
0 = No effect.
1 = The receiver is enabled if RXDIS is 0.
• RXDIS: Receiver Disable
0 = No effect.
1 = The receiver is disabled. If a character is being processed and RSTRX is not set, the character is completed before the
receiver is stopped.
• TXEN: Transmitter Enable
0 = No effect.
1 = The transmitter is enabled if TXDIS is 0.
• TXDIS: Transmitter Disable
0 = No effect.
1 = The transmitter is disabled. If a character is being processed and a character has been written the DBGU_THR and
RSTTX is not set, both characters are completed before the transmitter is stopped.
• RSTSTA: Reset Status Bits
0 = No effect.
1 = Resets the status bits PARE, FRAME and OVRE in the DBGU_SR.
6384B–ATARM–15-Dec-08
TXDIS
31
23
15
–
–
–
7
Debug Unit Control Register
DBGU_CR
TXEN
30
22
14
–
–
–
6
RXDIS
29
21
13
–
–
–
5
RXEN
28
20
12
–
–
–
4
RSTTX
27
19
11
–
–
–
3
AT91SAM9G20 Preliminary
RSTRX
26
18
10
–
–
–
2
25
17
–
–
–
–
9
1
RSTSTA
24
16
–
–
–
8
0
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