Name: Sun Microsystems SPARCengine Ultra AXi
Brand: Sun Microsystems
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D-4 SPARCengine Ultra AX

OEM Technical Manual • May 1999

D.3 Flash Memory and NVRAM Layout

The Ultra AXi PROM space is arranged as blocks containing headered segments. The

key organizational component is the header. The information content of the PROM

and its headers are shown in

FIGURE D-2.

FIGURE D-2 Ultra AXi CPU PROM Content Layout

POST

Space for optional

drop-ins

Unused

Compressed OBP

Keyboard

Header 0x20 bytes

0x1ff.f000.0000

Reset Vector

Plug-ins

0x1ff.f00.A000

0x1ff.f00f.fff

Fonts

ATI graphics driver 2

ATI graphics driver 1

OBDIAG

320K

180K

250K

1 MB

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