info    01      startup idle
duration 100 ns

info    02      write and readback baud rate register
duration 100 ns

info    03      write user baudrate
duration 100 ns
baudrate 1E6

info    04      send word to UART
duration 10 us

info    05      receive word from UART
duration 10 us
send    any

info    06      read status and data word from UART
duration 100 ns
