Tag
microprocessor-architecture
- Sep 22, 2025 Multiplexed Address and Data Buses in a Forty-Pin Package Multiplexed address and data pins let a processor with more address lines than pins reach memory, at the cost of an external latch and a shortened access window. computing history
- Sep 6, 2025 Two Address Spaces: Port-Mapped and Memory-Mapped I/O Decoding Why the 8080 family reserved a separate 256-byte I/O space, how the control signals distinguish it from memory, and what each arrangement costs in address decoding and instruction width. computing history