Enum lpc845_pac::usart0::cfg::LOOP_A [−][src]
pub enum LOOP_A {
NORMAL,
LOOPBACK,
}
Expand description
Selects data loopback mode.
Value on reset: 0
Variants
0: Normal operation.
1: Loopback mode. This provides a mechanism to perform diagnostic loopback testing for USART data. Serial data from the transmitter (Un_TXD) is connected internally to serial input of the receive (Un_RXD). Un_TXD and Un_RTS activity will also appear on external pins if these functions are configured to appear on device pins. The receiver RTS signal is also looped back to CTS and performs flow control if enabled by CTSEN.