SAM3X8C Atmel Corporation, SAM3X8C Datasheet - Page 831

• Manufacturer Part Number: SAM3X8C
• Manufacturer: Atmel Corporation

35.7.9.3
35.7.9.4
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
Local Loopback Mode
Remote Loopback Mode
Local loopback mode connects the output of the transmitter directly to the input of the receiver,
as shown in
the receiver and the TXD pin is continuously driven high, as in idle state.
Figure 35-57. Local Loopback Mode Configuration
Remote loopback mode directly connects the RXD pin to the TXD pin, as shown in
The transmitter and the receiver are disabled and have no effect. This mode allows bit-by-bit
retransmission.
Figure 35-58. Remote Loopback Mode Configuration
Figure
35-57. The TXD and RXD pins are not used. The RXD pin has no effect on
Transmitter
Transmitter
Receiver
Receiver
1
1
RXD
TXD
RXD
TXD
SAM3X/A
SAM3X/A
Figure
35-58.
831
831