Dr A Sahu Dept of Comp Sc & Engg. IIT Guwahati. 8155 I/O + Timer 8155 I/O + Timer 8255 I/O 8255 I/O 8253/54 Timer 8253/54 Timer 2 Port (A,B), No Bidirectional.
CS61C L27 I/O & Networks (1) Beamer, Summer 2007 © UCB Scott Beamer, Instructor inst.eecs.berkeley.edu/~cs61c CS61C : Machine Structures Lecture #27 I/O.
