EmbLogic's Blog

parallel port and its modes????

our realistic work:

compatibility: sends one byte data on data port line and take the output by leds,

nibble mode: sends data on upper 4bits of the data port and receive by the upper bits of the status register . and control register used for controling the receiver device.so it take two clock to send one byte of data.

byte mode : sends one byte data and receive one byte data by the data register in single clock.

but my problem is these all modes performing  simplex communication unidirectional , i want to make it half duplex if it is possible, please tell me its very humble request to u.

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>