DS directive in 8085 None of these Forces the assembler to reserve one byte of memory Forces the assembler to reserve a specified number of consecutive bytes in the memory Forces the assembler to reserve a specified number of bytes in the memory TRUE ANSWER : ? YOUR ANSWER : ?
In 8086 the number of bytes which can be addressed directly is about 1000 100000 10000 one million TRUE ANSWER : ? YOUR ANSWER : ?
While using a frequency counter for measuring frequency, two modes of measurement are possible: Period time Frequency mode There is a ‘cross-over frequency’ below which the period mode is preferred. Assuming the crystal oscillator frequency to be 4MHz, the crossover frequency is given by 2 Mhz. 8 Mhz. 2 Khz. 1Khz. TRUE ANSWER : ? YOUR ANSWER : ?
Total number of instructions in 8085 microprocessor assembly language is 247 245 244 246 TRUE ANSWER : ? YOUR ANSWER : ?
Which components are NOT found on chip in a microprocessor but may be found on chip in a microcontroller? SRAM & USART EPROM, USART & PORTS SRAM, EPROM & PORTS EPROM & PORTS TRUE ANSWER : ? YOUR ANSWER : ?
In 8085 microprocessor based system maximum possible number of input/output devices can be connected using I/O mapped I/O technique is 65536 64 256 512 TRUE ANSWER : ? YOUR ANSWER : ?
In 8085, the pins for SID and SOD are 4 and 5 respectively 4 and 3 respectively 3 and 4 respectively 5 and 4 respectively TRUE ANSWER : ? YOUR ANSWER : ?
‘Burst refresh’ in DRAM is also called Hidden refresh None of these Distributed refresh Concentrated refresh TRUE ANSWER : ? YOUR ANSWER : ?
Pick up the programmable interrupt controller from the following 8279 8259 8257 8275 TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following statements for intel 8085 is correct? PC specifies the address of the instruction to be executed Program Counter (PC) specifies the address of the instruction last executed PC specifies the address of the instruction being executed PC specifies the number of instructions executed so far TRUE ANSWER : ? YOUR ANSWER : ?