State Machine - |uart_top|uart_rx:uart_rx_c0|state
Name state.STOP state.DATA state.IDLE 
state.IDLE 0 0 0 
state.STOP 1 0 1 
state.DATA 0 1 1 

State Machine - |uart_top|uart_tx:uart_tx_c0|state
Name state.STA_OFF state.STA_DATA state.STA_IDLE 
state.STA_OFF 0 0 0 
state.STA_IDLE 1 0 1 
state.STA_DATA 1 1 0