Microprocessor In 8085 microprocessor system with memory mapped I/O, which of the following is true? Devices are accessed using IN and OUT instructions There can be maximum of 256 input devices and 256 output devices Devices have 8-bit address line Arithmetic and logic operations can be directly performed with the I/O data Devices are accessed using IN and OUT instructions There can be maximum of 256 input devices and 256 output devices Devices have 8-bit address line Arithmetic and logic operations can be directly performed with the I/O data ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Assertion(A): Ready signal of microprocessor is used to detect whether a peripheral is ready for the data transfer or not. Reason(R): In the microprocessor during data transfer operations, the wait states are added by forcing the ready signal low. Both A & R are true and R is the correct explanation of A. A is false but R is true. Both A & R are true but R is not the correct explanation of A . A is true but R is false. Both A & R are true and R is the correct explanation of A. A is false but R is true. Both A & R are true but R is not the correct explanation of A . A is true but R is false. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Each instruction in an assembly language program has the following fields 1. Label field 2. Mnemonic field 3. Operand field 4. Comment field What are the correct sequence of these fields? 2, 1, 4 and 3 2, 4, 1 and 3 1, 2, 3 and 4 1, 3, 2 and 4 2, 1, 4 and 3 2, 4, 1 and 3 1, 2, 3 and 4 1, 3, 2 and 4 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor XCHG instruction exchanges the content of H-L with ______ register pair. B-C PSW D-E Stack Pointer B-C PSW D-E Stack Pointer ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The stack pointer register in a microprocessor keeps the address of the next instruction to be fetched holds the address of the top of the stack counts the number of programs being executing on the microprocessor counts the number of instructions being executing on the microprocessor keeps the address of the next instruction to be fetched holds the address of the top of the stack counts the number of programs being executing on the microprocessor counts the number of instructions being executing on the microprocessor ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The relation among IC (Instruction Cycle), FC (Fetch cycle) and EC (Execute Cycle) is IC = FC - EC IC = FC + 2EC EC = IC + FC IC = FC + EC IC = FC - EC IC = FC + 2EC EC = IC + FC IC = FC + EC ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS