8087 Numeric Data Processor: The 8087 Numeric Data Processor (NDP) is called a high-speed math co-processor. This math co-processor is also known as Numeric Processor Extension (NPX) or Numeric Data Processor (NDP) or Floating Unit…
8086 Microprocessor Pin Diagram and 8088 Pin Diagram: In order to implement many situations in the microcomputer system the 8086 Microprocessor Pin Diagram and 8088 Pin Diagram has been designed to work in two operating…
8086 Interrupt Types: The 8086 Interrupt Types are Dedicated Interrupts: Type 0 : Divide by Zero Interrupt When the quotient from either a DIV or IDIV instruction is too large to fit in the result register;…
8086 Instruction Format: The 8086 Instruction 8086 Instruction Format vary from 1 to 6 bytes in length. Fig. 6.8 shows the instruction formats for 1 to 6 bytes instructions. As shown in the Fig. 6.8,…
8086 External Hardware Synchronization Instructions: The 8086 External Hardware Synchronization Instructions are namely HLT WAIT ESC LOCK NOP HLT Instruction : The HLT instruction will cause the 8086 to stop fetching and executing instructions. The 8086…
8086 Addressing Modes: We have seen how the 8086 fetches code bytes from memory by generating 20-bit physical address with the help of IP and CS. We have also seen how the 8086 accesses the…
8085 Pin Diagram | Functional Pin Diagram of 8085 Microprocessor: Fig. 1.3 (a) and (b) shows 8085 Pin Diagram and functional pin diagram of 8085 microprocessor respectively. The signals of 8085 Pin Diagram can be…
8085 Microprocessor Architecture and its Operations: Fig. 1.1 shows the 8085 Microprocessor Architecture. It consists of various functional blocks as listed below : Registers Arithmetic and Logic Unit Instruction decoder and machine cycle encoder Address…
8085 Clock Circuit: The 8085 has on chip clock generator. Fig. 4.1 shows the internal block diagram of the on chip clock generator. The internal clock generator requires tuned circuit like LC, RC or crystal,…
8051 Interrupts: The 8051 Interrupts provides 5 interrupt sources. The 8052 provides 6. These are shown in Fig. 12.28. The external Interrupts INT0 and INT1 can each- be either level-activated or transition-activated, depending on bits…
