I am developing the IDE controller programme about pdc20262, which need to
work in PIO or DMA. I have finished the part of intel's IDE controller--82801BA_9,
However, I don't develop the pdc20262 by simulating 82801BA_9's method. I doubted that
pdc20262 is different from the 82801BA_9. I want to know how to use its PCI
configuration. Now my computer's status about pdc20262 is
Region 0: I/O ports at cff0
Region 1: I/O ports at cfe4
Region 2: I/O ports at cfa8
Region 3: I/O ports at cfe0
Region 4: I/O ports at ce80
if I define DATA_REG1=cff0, should (DATA_REG1+7) be the status register.
At the same time, I don't know that how every bit of status register(8bit)
is defined!!! Can you tell some information about PIO or DMA in developing
pdc20262 ?
I am looking forward to your answer!!!
Thank you very much!!!
My email: z1j2t3@163.com
zjt757678@sohu.com