Microprocessor 8085 Ppt By Gaonkar | New
B, C, D, E, H, L (8-bit registers). They can work individually or in pairs (BC, DE, HL) to store 16-bit data. Special Purpose Registers:
Conclusion and learning path Start with Gaonkar’s PPT/chapters on architecture and instruction set, practice assembly programs on an 8085 simulator, then move to interfacing labs (8255, 8259). Use timing diagrams to understand machine cycles and bus control for hardware interfacing.
: Lowest priority. Non-vectored. Requires an external device to place an interrupt opcode (like RST n or CALL ) onto the data bus via the INTA¯modified cap I cap N cap T cap A with bar above (Interrupt Acknowledge) signal.
These modify the internal operations of the processor or manage specific system controls.
The ALU performs arithmetic functions (addition, subtraction) and logical functions (AND, OR, XOR, Rotate). It works closely with the Accumulator, temporary registers, and the Flag Register. C. The Flag Register (Status Register) microprocessor 8085 ppt by gaonkar new
The operand is hidden and implied directly by the command (e.g., CMA - Complement Accumulator). Slide 11: Real-World Applications & Peripherals
Testing using simulation tools (e.g., GNUSim8085). 6. Interrupt Structure of 8085
MVI A, 05H ; Load immediate data 05H into Accumulator MVI B, 07H ; Load immediate data 07H into Register B ADD B ; Add B to A (Result: 0CH stored in Accumulator) STA 3000H ; Store the result from Accumulator to memory location 3000H HLT ; Stop execution Use code with caution. Example B: Block Data Transfer (Copying memory)
The 40 pins of the 8085 are organized into distinct groups based on their functionality. When designing a new PPT, categorize these pins logically rather than just listing numbers 1 to 40. Address and Data Buses B, C, D, E, H, L (8-bit registers)
Hardware Interrupts in 8085
The commands (Set Interrupt Mask) and RIM (Read Interrupt Mask) program and monitor these maskable interrupts. Suggested Slide Layout for a PPT Presentation
One precise sub-division of an operation corresponding to one internal clock pulse period.
The 8085 microprocessor remains a foundational pillar in computer engineering education. When students and educators look for the definitive guide on this 8-bit architecture, they invariably turn to Ramesh Gaonkar’s textbook, "Microprocessor Architecture, Programming, and Applications with the 8085" . Use timing diagrams to understand machine cycles and
+---v---+ X1 --|1 40|-- Vcc (+5V) X2 --|2 39|-- HOLD RESET OUT |3 38|-- HLDA SOD --|4 37|-- CLK (OUT) SID --|5 36|-- RESET IN TRAP --|6 35|-- READY RST 7.5 -|7 34|-- IO/M RST 6.5 -|8 33|-- S1 RST 5.5 -|9 32|-- RD INTR --|10 31|-- WR INTA --|11 30|-- ALE AD0 --|12 29|-- S0 AD1 --|13 28|-- A15 AD2 --|14 27|-- A14 AD3 --|15 26|-- A13 AD4 --|16 25|-- A12 AD5 --|17 24|-- A11 AD6 --|18 23|-- A10 AD7 --|19 22|-- A9 GND --|20 21|-- A8 +-------+ Multiplexed Address/Data Bus (
Opcode implies the data ( CMA - Complement Accumulator). 5. Programming the 8085
Priority flowchart or ladder diagram from highest to lowest priority. Core Content:
The Intel 8085 remains the definitive educational blueprint for understanding semiconductor architecture. When engineering students and educators search for a they are looking for a structured, visually driven way to master the concepts from Ramesh Gaonkar’s seminal textbook, Microprocessor Architecture, Programming, and Applications with the 8085 .
+-----------------------------------------------------------+ | 8085 Internal Data Bus | +------+=+--------------+=+---------------+---------------+---+ | | | | | | v v v v v v +---------------+ +-------------+ +---------------+ +-----------+ | Accumulator | | Temporary | | Flag Register | | Interrupt | | (A) | | Register | | | | Control | +-------+-------+ +------+------+ +-------+-------+ +-----+-----+ | | | | v v | | +-------------------------------+ | | | Arithmetic Logic Unit (ALU) | | | +---------------+---------------+ | | | v v +-------------------> [Signals] [Interrupts] The Arithmetic and Logic Unit (ALU)