Microprocessors And Microcontrollers - Study Mode
[#66] What is the RAM and ROM size in 8051 microcontroller?
Correct Answer
(C) 128 byte RAM and 4 kB ROM
[#67] What is the maximum number of key codes that can be generated by 8279?
Correct Answer
(A) 64
[#68] 8251 IC is a
Correct Answer
(B) USART
[#69] How many bytes of bit addressable memory is present in 8051 based microcontrollers?
Correct Answer
(C) 16 bytes
[#70] The advantage of cycle stealing in DMA is that 1. It increases the maximum I/O transfer rate. 2. It reduces the interference by the DMA controller in the CPU's memory access. 3. It is beneficially employed for I/O device with shorter bursts of data transfer. Which of the above statements are correct?
Correct Answer
(A) 1 and 2 only