that follow the standard Intel 8085 architecture introduced in 1977. DPVIPRA College : Hosts detailed 8085 microprocessor notes
Controls the internal operations of the CPU or manages specialized hardware interrupts (e.g., NOP , HLT , DI , EI , SIM , RIM ). 5. Instruction Timing and Machine Cycles
Hardware interrupts include (Non-maskable), RST 7.5 , RST 6.5 , RST 5.5 , and INTR (Maskable). RESET IN¯modified RESET IN with bar above
: A single silicon chip containing the Arithmetic Logic Unit (ALU), control unit, and register arrays. It acts strictly as a Central Processing Unit (CPU) without on-chip memory or peripherals. microprocessor 8085 ppt by gaonkar new
): The lower 8 bits of the memory address and the 8-bit data bus share the same lines to reduce the pin count. They are demultiplexed using the Address Latch Enable (ALE) signal.
These operations perform mathematical calculations, automatically updating the status flags based on the output.
Set to 1 if the ALU operation result is exactly zero. that follow the standard Intel 8085 architecture introduced
Should we dive deeper into a specific or look at some Assembly Language code examples next?
Examples: ANA D (Logical AND register D with Accumulator), XRA E (Exclusive OR register E with Accumulator), RLC (Rotate Accumulator bits left). Branching Instructions
The processor treats external input/output devices exactly like memory locations. They share the same address space ( max) and utilize instructions like MOV , LDA , and STA . ): The lower 8 bits of the memory
: Supports five hardware interrupts: TRAP (highest priority, non-maskable), RST 7.5 , RST 6.5 , RST 5.5 , and INTR .
The total time required to complete the execution of a single instruction. It consists of one or more machine cycles.