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8085 Microprocessor Architecture
geeksforgeeks.org/computer-organization-architecture/architecture-of-8085-microprocessor/Yapay zekadan makale özeti
- Core Components
- 8085 is an 8-bit microprocessor developed by Intel in mid-1970s
- Contains accumulator, registers, program counter, stack pointer, and flags register
- Has six general-purpose registers (B-L) that can be paired for 16-bit operations
- Control and Communication
- Uses 16-bit address bus for memory access and 8-bit data bus for data transfer
- Features five interrupt signals with priority order: TRAP > RST 7.5 > RST 6.5 > RST 5.5 > INTR
- Includes serial I/O control through SID/SOD pins for bit-by-bit communication
- Instruction Cycle
- Execution starts with Program Counter fetching next instruction address
- Data fetched from memory goes to Instruction Register for decoding
- Timing and control signals manage data flow and operations
- Flag register changes dynamically during operations
- Applications and Issues
- Used in embedded systems, computer peripherals, and communication systems
- Common issues include overheating, power supply problems, and timing issues
- Still used in research and retro computing projects