<?xml version="1.0" encoding="UTF-8" ?>
<?xml-stylesheet type="text/xsl" href="https://community.arm.com/utility/feedstylesheets/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>Difference between making P1 I/O or sending data on it</title><link>https://community.arm.com/developer/tools-software/tools/f/keil-forum/14296/difference-between-making-p1-i-o-or-sending-data-on-it</link><description> I want to assign value 0x0f to port P1 of 8051(which is to be configured as an output port). 
 
If I give the instruction 
P1 = 0x00 
 
it assigns P1 as output port. Now suppose I want to out data 0x0f on it, then will the subsequent instruction 
P1</description><dc:language>en-US</dc:language><generator>Telligent Community 10</generator></channel></rss>