Angel is linked to run from DRAM. The top of DRAM is reserved for the MMU Lookup Tables and the boot monitor. The Angel executable occupies the memory below that.
The actual address Angel is linked at is:
0x01FB8000for the IQ80310. This is near the top of the 32MB DRAM region.
0x07FB8000for the IQ80321. This is near the top of the 128MB DRAM region.