How many bits are used in the data bus?

More Questions from Microprocessor Fundamentals

• The control bus and memories share a bidirectional bus in a typical microprocessor system.
• A microprocessor with the necessary support circuits will include at least two memory ICs: ROM or EPROM, and a RAM.
• LDA addr and STA addr are Fortran language instructions stored in an external memory IC for a microprocessor.
• Conversion from assembly language to machine language can be done by the programmer through a process called hand assembly.
• I/O-mapped systems identify their input and output devices by giving them an 8-bit port number.
• The software used to drive a microprocessor-based system is called FORTRAN.
• The stack is a data storage area in RAM used by certain microprocessor operations.
• A microcontroller integrates multichip systems with RAM, ROM, and I/O.
• Programs written for the 8080A must have slight modifications to run on the 8085A.
• The 8085 software is compatible with the 8080A.

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