AVR mod pinu kdyz je na nem zaply USART receiver

[Jan Waclawek]

Detailne spravanie IO pinov za roznych okolnosti si treba pozerat v kapitole I/O Ports - Alternate Port Functions. 
Namatkovo som otvoril datasheet k ATMega32, kde pre dany pin stoji:

RXD, Receive Data (Data input pin for the USART). When the USART Receiver is
enabled this pin is configured as an input regardless of the value of DDD0. When the
USART forces this pin to be an input, the pull-up can still be controlled by the PORTD0
bit.

wek


----- Original Message ---------------
>Zdravim,
>
>nevite nekdo jak presne se zmeni pin RXD
>kdyz na nem zapnu pijem USARTu ?
>Bude na nem mozne zapnout interni pullup odpor (pro input mode)
>nebo se pri zapnuti prijmu uartu pin vzdy zmeni na vysokoimpedancni ?
>
>V PDF sem nasel jen toto: :-(
>When the Receiver is enabled, the normal pin operation of the RxDn
>pin is overridden by the USART and given the function as the Receiver’s 
>serial input.
>