Topic 2.0 – Microprocessor Architecture PDF
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Summary
This document discusses the topic of microprocessor architecture, focusing on the Intel 8085 architecture. It details the key components, including the ALU and control units, and how they interact within the broader system. The document also covers interrupt handling and serial communication, providing a high-level overview.
Full Transcript
###### [TOPIC 2.0 -- MIRCOPROCESSOR ARCHITECTURE] ###### ###### The term architecture encompasses a combination of microprocessors and supporting hardware that creates the building blocks for a variety of computing systems. ###### ###### We shall use Intel 8085 microprocessor Architecture to d...
###### [TOPIC 2.0 -- MIRCOPROCESSOR ARCHITECTURE] ###### ###### The term architecture encompasses a combination of microprocessors and supporting hardware that creates the building blocks for a variety of computing systems. ###### ###### We shall use Intel 8085 microprocessor Architecture to demonstrate various components of the architecture. ###### ###### Operations performed by 8085 ###### Registers ###### Accumulator ###### Flags -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- ###### Stack Pointer (SP) ###### Program Counter (PC): ###### Timing and Control Unit 1. ALE-Address Latch Enable, It provides control signal to synchronize the components of microprocessor. 2. RD- This is active low used for reading operation. 3.WR-This is active low used for writing operation. ###### Serial Input Output Control ###### Interrupt Unit ###### There are 6 interrupt pins in this unit. Generally, an external hardware is connected to these pins. These pins provide interrupt signal sent by external hardware to microprocessor and microprocessor sends acknowledgement for receiving the interrupt signal. Generally, INTA is used for acknowledgement.
