June 2008
Beginner to intermediate
624 pages
18h 20m
English
book
The 8085 Microprocessor: Architecture, Programming and Interfacing
by Udaya Kumar K., Umashankar B.S.
Content preview from The 8085 Microprocessor: Architecture, Programming and Interfacing
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III
Programmable and Non-Programmable I/O Ports
Chapter Heads
18 Interrupts in 8085
19 8212 Non-Programmable 8-Bit I/O Port
20 8255 Programmable Peripheral Interface Chip
21 Programs Using Interface Modules
INTRODUCTION
In this part, we will deal in detail with 8255 PPI, which is a very popular chip that is used for interfacing I/O devices. Theoretically, any I/O device could be interfaced with the microprocessor using the 8255. This part comprises of Chaps. 18 to 21. Chapters 18 and 19 deal with the interrupts in the 8085 microprocessor and the non-programmable chip, Intel 8212, respectively. Chapters 20 and 21, which form the latter portion of this part deal with the programmable I/O port, 8255 and programs using interface modules.
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