This enables the PCa#39;s circuit designers to place a maximum of eight I/O devices on the system board, with the limitation that none of these devices have ... The block diagram indicates that the 8255 has three 8-bit bidirectional parallel ports.
Title | : | Microcomputer Hardware, Operation, and Trouble-Shooting with IBM PC Applications |
Author | : | Byron W. Putman |
Publisher | : | Prentice Hall - 1987 |
You must register with us as either a Registered User before you can Download this Book. You'll be greeted by a simple sign-up page.
Once you have finished the sign-up process, you will be redirected to your download Book page.
How it works: