DMA stands for Direct Memory Access, in regards to 8085 MP. It consists of 2 pins, namely, HOLD and HLDA. The former of which indicates the processor that either a peripherial or any IO device, is requesting the processor to hold its current activites and give the control of buses to IO devices. HLDA, on the contrary, is the acknowledgement from the microprocessor to the concerned IO device sending the request.
with neat diagram explain the system bus structure of 8085
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The 8085 microprocessor can access 65536 (2^16) locations in memory, and 256 (2^8) locations in I/O space.
HL is a register pair that is used to store 16-bit data in 8085 Microprocessor
stores next instructions
8085 is a microprocessor designed by Intel
DMA->Direct Memory Access. I/O device can access the memory without the help of CPU. So that there is faster access by the device. I/O device signals microprocessor by HOLD signal.
The '8085' in the 8085 microprocessor is the designation given to the microprocessor by Intel. The '5' means it is a single power supply (5 volt) version of the 8080, with enhancements.
+5v necessary for microprocessor 8085.
8085 is a 8 bit microprocessor designed by Intel Co.
with neat diagram explain the system bus structure of 8085
crystal is a oscilltor in microprocessor
The 8085 is not pipelined.
program to find prime number in 8085 microprocessor
+5v supply is alone needed for Intel 8085 Microprocessor
HL is a register pair used to store 16 bit of data in 8085 microprocessor.
There are 74 instructions in the 8085 microprocessor.