8085A CookbookBasic microprocessor/microcomputer concepts. Basic system control. Memory systems-memory decoding. Read-only memories. Read/write memories. Microcomputer interfacing. 8085A-family-compatible chips. A simple 8085A microcomputer design. 8085A instruction set summary. Data sheets. Electrical characteristics of typical ROMs. Data sheets for 2114 R/W memories. |
Contents
BASIC MICROPROCESSORMICROCOMPUTER CONCEPTS | 9 |
CHAPTER 2 | 29 |
APPENDIX | 34 |
Copyright | |
11 other sections not shown
Common terms and phrases
1K blocks 8085A microprocessor 8085A-based microcomputer absolutely decoded accumulator I/O address bus address lines address/data bus assembly language bits block diagram chapter chip select chip select inputs circuitry clock contains control signals Courtesy Intel Corp Courtesy Texas Instruments data bus decoder design demultiplex electrical characteristics EPROM flip-flop gate H H H H L H I/O ports I/O R I/O W input current input port instruction is executed interface INTR inverter latch leakage current loaded logic zero mask ROM maximum memory address memory integrated circuits memory location zero memory-mapped I/O memory-read micro microcomputer system microprocessor address space nonabsolute decoding output port peripheral device pin configuration pulse R/W memory RESET shown in Fig SN74LS42 decoder source current Texas Instruments three-state timer Trailing Edge truth table USART voltage wired directly wired to ground write ΜΑ