Microprocessor 8085 Ppt By Gaonkar Link Free Jun 2026

): Serve as the data bus during the latter part of a machine cycle, and as the lower address byte during the first part.

The book's fifth edition is often organized into three key parts:

Addressing Modes (Direct, Register, Immediate, Indirect, Implicit) Slide 10: Timing Diagrams & Understanding T-States Slide 11: Interrupts in the 8085 (Hardware vs. Software) microprocessor 8085 ppt by gaonkar free

Interrupts allow external hardware components to pause the current program execution and request immediate service via an Interrupt Service Routine (ISR). Classification of Interrupts

+-------------------------------------------------------+ | Accumulator (A) [8-bit] | +-------------------------------------------------------+ | Arithmetic Logic Unit (ALU) | +-------------------------------------------------------+ | B (8) | C (8) | D (8) | E (8) | H (8) | L (8) | <-- General Purpose +-------------------------------------------------------+ | Program Counter (PC) [16-bit] | +-------------------------------------------------------+ | Stack Pointer (SP) [16-bit] | +-------------------------------------------------------+ | Flag Register [8-bit] | +-------------------------------------------------------+ General-Purpose Registers ): Serve as the data bus during the

Gaonkar heavily emphasizes the layout of the 8085 registers, categorizing them by utility:

: Includes the Program Counter (PC) which points to the next instruction address, and the Stack Pointer (SP) which manages stack memory. Module 5: Interrupts and Interfacing Slide 10: 8085

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Input/Output device data transfers. Module 5: Interrupts and Interfacing Slide 10: 8085 Interrupt Structure

Can be disabled or ignored by the programmer using specific commands ( DI - Disable Interrupt).