djm@etive.ed.ac.uk (D Murphy) (04/14/89)
Hello everybody.
Does anyone out there have an online copy of the data sheet for the DMA
controller used in the IBM PC ? I think this is an Intel 8237 (the number
may be wrong here but the idea is the same).
We did have a real paper copy here but have lost track of it. The information
I need is the method of telling the controller the memory address at which to
start a DMA operation. I think the registers for this are at I/O ports 0x00 to
0xFF, but I'm not certain and don't know which of these are used.
Thanks,
Murff....
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D.J. Murphy
Chemistry Dept.
Univ. of Edinburgh
"I don't want to achieve immortality through my work,
I want to achieve it throught not dying."
Woody Allen