07-07-2012, 11:59 AM
8085 Microprocessor
[attachment=27076]
Pinout Diagram of 8085
A 40-pin IC
Six groups of signals
Address Bus
Data Bus
Control and Status pins
Power Supply & frequency signals
Externally initiated Signals
Serial I/O ports
Microprocessor Initiated Operations
Memory Read
Memory Write
I/O Read
I/O Write
Internal Operations
Store 8-bit data
Perform Arithmetic and Logic Operations
Test for conditions
Sequence the execution of instructions
Store/Retrieve data from stack during execution
Architecture of 8085
Power Supply – a +5V DC power supply
Maximum clock frequency of 3MHz
8-bit general purpose microprocessor
16-bit Address Bus
Capable of addressing 64K of memory
8085 Communication with Memory
Involves the following three steps
Identify the memory location (with address)
Generate Timing & Control signals
Data transfer takes place
[attachment=27076]
Pinout Diagram of 8085
A 40-pin IC
Six groups of signals
Address Bus
Data Bus
Control and Status pins
Power Supply & frequency signals
Externally initiated Signals
Serial I/O ports
Microprocessor Initiated Operations
Memory Read
Memory Write
I/O Read
I/O Write
Internal Operations
Store 8-bit data
Perform Arithmetic and Logic Operations
Test for conditions
Sequence the execution of instructions
Store/Retrieve data from stack during execution
Architecture of 8085
Power Supply – a +5V DC power supply
Maximum clock frequency of 3MHz
8-bit general purpose microprocessor
16-bit Address Bus
Capable of addressing 64K of memory
8085 Communication with Memory
Involves the following three steps
Identify the memory location (with address)
Generate Timing & Control signals
Data transfer takes place