Hello.
For PIC micro it’s clear to me that to configure port TRIS register is used and to set pins of the port PORT register is used.
For AT89C20151, it is not clear me, since for instance, when I put P3.4=0, am I configuring pin 4 of port 3 as an output pin or am I setting pin 4 of port 3 to low level?
Thank you
For PIC micro it’s clear to me that to configure port TRIS register is used and to set pins of the port PORT register is used.
For AT89C20151, it is not clear me, since for instance, when I put P3.4=0, am I configuring pin 4 of port 3 as an output pin or am I setting pin 4 of port 3 to low level?
Thank you