ZT5515A-1BW Intel, ZT5515A-1BW Datasheet - Page 52

• Manufacturer Part Number: ZT5515A-1BW
• Manufacturer: Intel

Specifications of ZT5515A-1BW

• Lead Free Status / Rohs Status: Supplier Unconfirmed

System BIOS
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Table 17. Detailed Structure Element Descriptions
Intel
If an area of flash is decoded at more than one address range, the address value given in the table will
be the address where the flash image should be programmed. For example, a 256 Kbyte BIOS area
using Mechanism 1 would be listed in the paged area at 0xfff80000, page 15. It would not be listed at
0xfffc0000, which might contain either the flash BIOS or a FRED device.
The value of an address field and its corresponding page field are undefined if the corresponding size
field is zero. For example, if the BootBlockSize field is zero, then the values in BootBlockAddr and
BootBlockPage are invalid, and whatever memory space they point to should not be accessed.
In this case, the “first” block of the flash drive is actually at the top of the flash drive address space,
directly below the BIOS and other related areas. The flash drive area will normally grow downward,
starting at this block, and the logical blocks of the flash drive are normally numbered with this block as
block zero.
The bottom of the flash drive address space would be calculated by taking the ending address of this
block, subtracting the size of the flash drive, and then performing any necessary paging calculations.
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ZT 5515 Compute Processor Board Technical Product Specification