Materi Kuliah Sistem Mikroprocesor

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Materi 1 Introduction to Syllabus
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Materi 2 Assembly Language Programming
Register are used to store information temporarily, while the information could be a byte of data to be processed, or an address pointing to the data to be fetched
The vast majority of 8051 register are 8-bit registers
– There is only one data type, 8 bits
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Materi 3 Branch Instructions
Repeating a sequence of instructions a certain number of times is called a loop
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Materi 4 Input Output Port Programming
The four 8-bit I/O ports P0, P1, P2 and P3 each uses 8 pins
All the ports upon RESET are configured as input, ready to be used as input ports
When the first 0 is written to a port, it becomes an output
– To reconfigure it as an input, a 1 must be sent to the port To use any of these ports as an input port, it must be programmed
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Materi 5 Addressing Modes
The CPU can access data in various ways, which are called addressing modes
– Immediate
– Register
– Direct
– Register indirect
– Indexed
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Materi 6 Arithmetic Logic Instructions
The instruction ADD is used to add two operands
– Destination operand is always in register A
– Source operand can be a register, immediate data, or in memory
– Memory-to-memory arithmetic operations are never allowed in 8051 Assembly language
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