Visible to Intel only — GUID: hbe1478076015494
Ixiasoft
Visible to Intel only — GUID: hbe1478076015494
Ixiasoft
3.1.7.1.5. Implementing Page Mode and Option Bits in the CFI Flash Memory Device
The following figure shows a sample layout of a .pof with three pages. The end addresses depend on the density of the flash memory device. For different density devices refer to the Byte Address Range for CFI Flash Memory Devices with Different Densities table below. The option bits follow the configuration data in memory.
The following figure shows the layout of the option bits for a single page. Because the start address must be on an 8 KB boundary, bits 0-12 of the page start address are set to zero and are not stored in the option bits.
CFI Device (Megabit) | Address Range |
---|---|
8 | 0x0000000–0x00FFFFF |
16 | 0x0000000–0x01FFFFF |
32 | 0x0000000–0x03FFFFF |
64 | 0x0000000–0x07FFFFF |
128 | 0x0000000–0x0FFFFFF |
256 | 0x0000000–0x1FFFFFF |
512 | 0x0000000–0x3FFFFFF |
1024 | 0x0000000–0x7FFFFFF |