is chip is also called a parallel port chip and it eases out the problems and issues related
to parallel data transfer. Parallel data transfer is what we have done all this time. We have
transferred 8/16 bits at one go either to/from memory or I/O devices. e I/O devices we
have discussed (Chapter 7) were quite simple and needed only a read/write control signal
and a select pulse generated during the read/write cycle. However, when I/O devices are
more versatile and have more features, a PPI will be very useful, especially when more than
one I/O device is ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month, and much more.