Microprocessor A sequence of two registers that multiplies the content of DE register pair by two and stores the result in HL register pair (in 8085 assembly language) is XCHG & DAD H XTHL & DAD H PCHL & DAD D XCHG & DAD B XCHG & DAD H XTHL & DAD H PCHL & DAD D XCHG & DAD B ANSWER DOWNLOAD EXAMIANS APP
Microprocessor HLDA signal in 8085 performs the following operation: Hold the data in the accumulator until the microprocessor is turned OFF. Indicates that the CPU has not received the HOLD request. Indicates that the CPU has received the HOLD request and that it will relinquish the bus in the next clock cycle. Indicates that another master is requesting the use of the address and data buses. Hold the data in the accumulator until the microprocessor is turned OFF. Indicates that the CPU has not received the HOLD request. Indicates that the CPU has received the HOLD request and that it will relinquish the bus in the next clock cycle. Indicates that another master is requesting the use of the address and data buses. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor For a memory with a 16-bit address space, the addressability is 2^16 bits Cannot be determined 16 bits 8 bits 2^16 bits Cannot be determined 16 bits 8 bits ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Which one of the following ICs is used to interface keyboard and display? 8253 8251 8259 8279 8253 8251 8259 8279 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The address bus width of a microprocessor which is capable of addressing 64 Kbytes of the memory is 12 20 16 8 12 20 16 8 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The 8085 microprocessor uses a crystal of frequency 6.25 Mhz. The T-state value is 640ns 1280ns 320ns 960ns 640ns 1280ns 320ns 960ns ANSWER DOWNLOAD EXAMIANS APP
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