Autobaud edge change count register
RXD_EDGE_CNT | This register stores the count of RXD edge change. It is used in baud rate detection. As baud rate registers UART_REG_LOWPULSE_MIN_CNT, UART_REG_HIGHPULSE_MIN_CNT, UART_REG_POSEDGE_MIN_CNT, and UART_REG_NEGEDGE_MIN_CNT always record the minimal value, UART_REG_RXD_EDGE_CNT indicates the statistic number of RXD edge to find out the minimal value for these baud rate registers. |