FIFO_TRIGGER_14
FIFO_TRIGGER_4 | FIFO_TRIGGER_8 | FIFO_TRIGGER_14);
FIFO_ENABLE | FIFO_RCV_RST | FIFO_XMT_RST | FIFO_TRIGGER_14);
FIFO_TRIGGER_14 | FIFO_UART_ON);
FIFO_ENABLE | FIFO_RCV_RST | FIFO_XMT_RST | FIFO_TRIGGER_14);
if (ISSET(CSR_READ_1(regsp, COM_REG_FIFO), FIFO_TRIGGER_14)
== FIFO_TRIGGER_14) {
uint8_t fcr = FIFO_ENABLE | FIFO_TRIGGER_14;