Using MDK + ULINK2 and IAR for ARM 7 boards

Hello,

I'm working on ARM9 controller board.(AT91 series)
We need to use a function call to write/read through Address-Data
bus. basically a IOWRITE/IOREAD operation. In IAR, which
function(name) does this address-data bus write/read operation.
Please help in this regard.

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