Advanced 8-bit Microprocessor, MC6809: Its Software, Hardware, Architecture & Interfacing Techniques
Microprocessors, besides being the heart of computers, also have a wide range of applications in devices such as portable telephones, CDs, VCRs, automobiles, as well as in controlling processes, traffic lights and instrumentation systems. Designed for students, engineers and electronic/computer technicians, this book provides the guide to understanding the software and hardware aspects of microprocessors, and the design and testing aspects of microprocessor-based systems. The focus is on the theory and applications of the 8-bit microprocessor where the Motorola MC6809 is used as a model example of such 8-bit microprocessor-based systems.
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Fundamentals of Digital Systems
Basic MC6809 Microprocessor System Hardware
7 other sections not shown
ACIA address lines addressing mode analog signal arithmetic ASCII assembler binary numbers bit is set Branch to Subroutine Chapter chip select CLR CRA CMPX Condition Code Register configured connected control lines Control Register cycle data bus data byte Data Direction Register Data Register DDRA DDRB decoder DRA EQU Eooo EPROM example execution FIRQ flip-flop flowchart functions Hardware Stack hexadecimal I/O lines Index Register initialisation input instruction Interface Adapter interrupt flag bit interrupt request interrupt request lines IRQA IRQB LDA DRA Long Branch MC6809 microprocessor memory location micro microprocessor system Non-Maskable Interrupt offset Op-code operation parity peripheral Port post-byte processor Program Counter reset set to logic shown in Figure sign bit Software Interrupt Stack pointer Stack pointer address stored Subroutine SWI2 SWI3 truth table two's complement vector