Flash ROM
From xboxdevwiki
Revision as of 04:15, 21 February 2024 by Prehistoricman (talk | contribs) (Fix information about MCPX connection)
The Flash is a 256 kiB or 1 MiB non-volatile TSOP ROM chip and connected to the MCPX via a parallel bus on hardware revisions 1.0 to 1.4. The ROM on revision 1.6 is stored in the Xcalibur chip, not a flash chip, and is connected to the MCPX via the LPC bus (Xbox revision 1.6).
The Flash ROM is mapped at 0xFFF00000 (if the ROM is 1 MiB; 0xFFFC0000, if the ROM is 256 kiB) in the Xbox kernel.
For the content of the Microsoft flash images see BIOS.
