Introduction to basic –
microprocessor
*1. 40 pins dual in packed
*2 it is 8 bit microprocessor
*3. it has 8 data lines(bus) AD0-AD7
*4. it ha 16 address line __ it can access upto 2^16 (64)kb memory
*5. it has AD0-AD7 multiplex lines
*6. it has array of registers
1.general purpose registers (6)-->Used by users
a (accumulator)- special purpose register
b c d e h l
2.temporary registers ->Used by Microprocessor
3.special purpose register(2)
1.stack pointer
-used for temporary storage
2.program counter
-counts the program
4.flag registers
indicates the status
*7. it has 5-types of intrupt
1 trap---highest priority
2 rst 7.5
3 rst 6.5
4 rst 5.5
5 intr---lowest priority
INTA <- aknoweledgement k liye hota hai…
*8. microprocessor operats on +5V power supply and 6.1 Mh clock frequency
*9. it has 74 instruction set
*10. it has 2 serial i/o lines
1 sid (Serial input data)
2 sod (Serial output data)
*11. it has 2 dma (direct memory access) signal
1. hold
2. hlda
*12. it has 256 i/o operation
*13. it has 7 instruction set
Some Questions:
Q1 When 8085 microprocessor was invented
Q2 who was discovered inter first microprocessor
Q3 what do you mean by microprocessor
Q4 write silent features of 8085 microprocessor
Q5 Why a
(accumulator) is called special register
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