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How to correctly configure UART pins in asembler

Question asked by karlen on Dec 17, 2012
Latest reply on Dec 19, 2012 by EtaPhi
I'm willing to init UART in asm and not sure is it required to configure specific IO port pin as  output pin with Px_DDR and only then then I can use UART_TX  or
the pin configures in output type automatically when UART is enabled in UART register?

There is shared UART1_TX/PA5 pin. After reset it is "input" - PA_DDR = $00
I want to use UART1 - prior that do I need this code or not?:
     ld     A,#%00100000 ; makes PA.5 - output
     ld      PA_DDR,A