The common register(s) for all the four channels of 8257 is
(a) DMA address register
(b) Terminal count register
(c) Mode set register and status register
(d) None of the mentioned
This question was addressed to me by my school principal while I was bunking the class.
My question is based upon DMA Controller 8257 in section DMA, Floppy Disk and CRT Controllers of Microprocessor