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Memory Mapped I/O
Memory I/O devices are mapped into the system memory map with ROM and RAM. To access a hardware device, simply write or read to those 'special' addresses by using the normal memory access instructions. The advantage to this method is that all instruction which may access memory may be utilized to manipulate an I/O device. The disadvantage to this method is that the complete address bus might be completely decoded for all devices. For instance, a machine with a 32-bit address bus would need logic gates to resolve the state of all 32 address lines to accurately decode the particular address of any device. This increases the cost of adding hardware to the machine.
can any one help me in my project by using assembly language
Basic Microprocessor Architecture and Interface : Introduction: Intel launches its first 4-bit microprocessor 4004 in the year 1971 and 8-bit microprocessor 8008 in the y
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ALP to preform of two 16-bit numbers in register addressing mode
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Write a 68hc11 assembly language program which generation of the following waveforms connected to your DAC i) Square wave ii) Saw tooth waveform iii) Sine wave iv) U
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