Broadcom BCM5722 Programmer's Manual page 165

Programmer's Guide BCM5722
10/15/07
* Indirect access via Memory Window Base Address and Memory Window Data register pair
** Indirect access via Register Window Base Address and Register Window Data register pair
Note: Reads to unmapped space return all zero. Writes to unmapped space are dropped internally.
Bro adco m Co rp or atio n
Document 5722-PG101-R Memory Maps and Pool Configuration Page 106