Specifications

Appendix C: Flash Boot Device
Page C-9
CC
PicoCard Flash File System
The EPC-5A contains a BIOS used to access the Flash as a read/write disk. If the user
selects shadowing of the PicoCard memory region, the extension is loaded to initialize
the disk.
Figure C-3. PicoCard Flash File System.
The Setup field named “BIOS
Extension Offset in FBD” in the
Advanced menu selects a starting
address of one of these blocks.
The Setup field named “BIOS Extension Size”
in the Advanced menu selects the ending
address when added to the “BIOS Extension.
Offset in FBD”.
BIOS Extension Offset in FBD [40000h]
BIOS Extension Size [2000h]
The image contained in this
block is shadowed into
DRAM at the address selected
in by the “Destination
Address” Setup field.
MFG BIOS
vROM
40000h
48000h
4A000h
System
BIOS
5E000h
Addresses listed are
offsets from the base
of the FBD.
FBD
Destination address [D8000h]