A. The 8085 is an 8-bit microprocessor.
B. It has a 16-bit address bus, allowing it to access 64 KB of memory.
C. It has 40 pins.
D. It uses a multiplexed address/data bus.
Choose the correct answer from the options given below :
8085 Microprocessor Statements Analysis
This section analyzes the given statements about the 8085 microprocessor to determine their accuracy.
Statement A: 8-bit Microprocessor
The 8085 is indeed an 8-bit microprocessor. This designation refers to the size of its data bus and the internal registers, which are typically 8 bits wide.
Statement B: Address Bus and Memory Access
The 8085 possesses a 16-bit address bus. This allows it to generate unique addresses for memory locations. With 16 address lines, it can access $2^{16}$ unique memory locations.
Calculating the total memory capacity:
- Number of locations = $2^{16}$ = 65,536
- Memory Capacity = 65,536 Bytes = 64 KB
Therefore, the statement that it can access 64 KB of memory is accurate.
Statement C: Pin Count
The standard package for the 8085 microprocessor has 40 pins. These pins are used for various functions including address, data, control signals, power, and clock.
Statement D: Multiplexed Address/Data Bus
The 8085 utilizes a multiplexed address/data bus. The lower 8 bits of the address bus (lines AD0 to AD7) are shared (multiplexed) with the 8-bit data bus (lines D0 to D7). This multiplexing reduces the number of pins required on the chip.
Conclusion
All four statements (A, B, C, and D) regarding the 8085 microprocessor are correct.
Similar Questions
- If 8085 microprocessor adds 87H and 79H, then :
- The content of register (B) and register (C) of 8085 microprocessor are 0AH and 0BH. It is desired to multiply the content of register B and register C and store the results in accumulator. A part of 8085 program for this purpose is given as :
MVI A, 00H
LOOP ; _ _ _ _ _
_ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _
HLT END
A sequence of instructions to complete the program would be : - The sequence of steps performed by microprocessor to fetch the data byte from memory :
A. The byte is placed in the instruction decoder of the microprocessor.
B. The byte from the memory location is placed on data bus.
C. The control unit sends the control signal $\overline{\text{RD}}$ to enable the memory chip.
D. The microprocessor places the 16-bit memory address from program counter on the address bus.
Choose the correct answer from the options given below : - Sequence of steps in 8085 microprocessor interrupt execution :
A. Interrupt acknowledged
B. Program counter content saved
C. Control transfered to ISR
D. Interrupt vector is read
Choose the correct answer from the options given below : - In 8085 microprocessor, which of the following are 2-byte instructions ?
A. MOV C, A
B. MVI A, 32H
C. LDA 2050H
D. JMP 2085H
E. ADD B
Choose the correct answer from the options given below : - Match List - I with List - II.Choose the correct answer from the options given below :
List - I
(Addressing Modes)List - II
(Instruction)A. Immediate Addressing I. LDAX B B. Register Addressing II. OUT 01H C. Direct Addressing III. MVI B, 37H D. Indirect Addressing IV. MOV A, B - Match List - I with List - II.
List - I List - II (Memory) (Characteristic) A. ROM I. Volatile, Fast, Expensive B. EPROM II. UV erasable C. EEPROM III. Electrically erasable D. SRAM IV. Non-Volatile, permanent data
Choose the correct answer from the options given below : - Match List - I with List - II.
List - I List - II (Bus/Logic) (Function/Characteristic) A. Address bus I. Carries read/write signals, timing signals, and interrupt signals B. Data bus II. A three-state output that can be high, low, or high-impedance C. Control bus III. Unidirectional lines used by CPU to point to a memory location or I/O device D. Tristate logic IV. Bidirectional lines used for transferring data between the CPU and memory
Choose the correct answer from the options given below : - The most fundamental physical principle that allows light to be transmitted along the optical fiber without significant loss :
- The energy-momentum (E-K) relationship in a crystalline solid is usually obtained by solving :
Important Questions from Miscellaneous
- Which of the following scheduler/schedulers is/are also called CPU scheduler ?
(A). Short Term Scheduler
(B). Long Term Scheduler
(C). Medium Term Scheduler
(D). Asymmetric Scheduler
Choose the correct answer from the options given below: - A situation where two or more processes are blocked, waiting for resources held by each other is called:
- External fragmentation occurs ________.
- Which disk scheduling algorithm looks for the track closest to the current head position?
- Which CPU scheduling algorithm prefers the process with the shortest burst time?
