The Data. Bus The data bus is a "two-way street" on which data or instruction codes are transferred into the microprocessor or on which the result of an operation or computation is sent out from the microprocessor. Depending on the particular microprocessor, the data bus can handle 8 bits, 16 bits, 32 bits, or 64 bits.
The Control Bus The control bus is used by the microprocessor to coordinate its operations and to communicate with external devices.
Microprocessor Programming.
The assembly language that is used to program a microprocessor is classified as a low-level language because the English-like instructions contained in a given assembly language represent binary codes that directly control the microprocessor. The binary code instructions are called machine language and are all that the microprocessor recognizes. A program called an assembler converts the English-like instructions, called mnemonics, in the assembly language into binary patterns called machine language for use by the microprocessor . Assembly language and the corresponding machine language is specific to the type of microprocessor or microprocessor family.
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English-like assembly language Assembler Binary.
machine language.
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On the other hand, high-level programming languages such as BASIC, Pascal, C, or Fortran are independent.of the type of microprocessor in a computer system. A program called a compiler or interpreter translates the high-level program statements into machine language. The Microcomputer.
When a microprocessor is connected to a memory unit, an input unit, and an output unit, you have a microcomputer . The CPU (microprocessor) communicates with the memory unit and the input and output units on the buses. Addresses are sent to the memory on the address bus, instructions and/or data are transferred between the.
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CPU, memory, and input/output units on the data bus, and signals on the control bus coordinate all operations.
