1, What is DPM?
2, If i want to use a 300us Access time peripheral with a 24Mhz 8051 then it will not work as 8051 works very fast and there is no way to slow it down without performance loss. while if i use 10ns Access time peripheral with same 8051 then every thing is ok because there is no hurry from peripheral side. Does this same rule also apply for ISA and PCI or not. I mean PC is in my case is 8051 and peripheral is PCI card.

Thanks!