External Bus to Avalon Bridge - Address Width

Datasheet provided says this:

Address—k bits (up to 32). The address of the data to be transferred. The address is aligned to the data size. For 32-bit data, the address bits Address 1−0 are equal to 0. The ByteEnable signals can be used to transfer less than 4 bytes.

However, what I could get is Address Range 1024 MBytes, which is only 30-bit address.

Is there any way to get 32-bit address width?