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INTRODUCTION TO MICROCOMPUTERS
USE OF CODES WITH MICROCOMPUTERS
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8080A Microprocessor addition address bus address lines addressing mode arithmetic binary number binary pattern branch instructions carry flag chapter chip select circuitry clock cycles clock pulse clock signal Code Address condition code register contents of accumulator control lines control register count data at location data bus data line decimal Decode op code Decrement delay diagram EPROM fetch flag bits flowchart goes low hexadecimal increment PC index register instruction is executed instruction set interface device interrupt request jump latch line goes Load accumulator machine cycle main program memory chips memory location Microprocessor octal offset Operand output lines peripheral equipment port program counter register pair reset result is placed Rotate second byte Section select line shown in Figure shows stack pointer status struction subroutine subroutine program Table tion tP's Transfer write zero zero page