Appendix B: About The Flash Boot Device; Figure B-1. Epc-6A Fbd Memory Map - RadiSys EPC - 6A Hardware Reference Manual

Appendix B
About the Flash Boot Device
This appendix describes how to reflash the Flash Boot Device (FBD) which contains the
EPC-6A System BIOS and the picoFlash BIOS extension.The FBD's memory map is
shown below:
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
3FFFFFFh
(FFFFFh)
3FFC000h
(FC000h)
3FFBFFFh
(FBFFFh)
3FFA000h
(FA000h)
3FF9FFFh
(F9FFFh)
3FF8000h
(F8000h)
3FF7FFFh
(F7FFFh)
3FE0000h
(FE000h)
3FDFFFFh
(N/A)
Pico Flash BIOS extension
3FC0000h
(N/A)
3FBFFFFh
(N/A)
CMOS save and restore
3FA0000h
(N/A)
3F9FFFFh
(N/A)
3F80000h
(N/A)

Figure B-1. EPC-6A FBD Memory Map

16KB boot block
8KB parameter block 2
8KB parameter block 1
96KB Main block 4
System BIOS
128KB main block 3
BIOS extensions
MFG BIOS
Reserved
128KB main block 2
128KB main block 1
Reserved
B
7FFFFh
7C000h
7BFFFh
7A000h
79FFFh
7A000h
79FFFh
60000h
5FFFFh
4E000h
4A000h
48000h
40000h
20000h
1FFFFh
00000h
47