Version: **
Translation - Japanese: S70FS01GSのセクタドレスマップ - KBA219111 - Community Translated (JA)
Question:
What is the initial sector address map of S70FS01GS?
Answer:
The S70FS01GS package contains two FS512S devices stacked in a dual-die package (DDP); therefore, both the lower and upper address FS512S devices must be configured. Because both devices are initially configured to have hybrid sectors as the default setting, each device has three sector regions with nine non-uniform sectors at the base of each device, as follows:
| Sector Size (KBytes) | Sector Count | Sector Range | Address Range (Byte Address) |
| 4 | 8 | SA0 - SA7 | 00000000h-00007FFFh |
| 224 | 1 | SA8 | 00008000h-0003FFFFh |
| 256 | 255 | SA9 - SA263 | 00040000h-03FFFFFFh |
| 4 | 8 | SA264 - SA271 | 04000000h-04007FFFh |
| 224 | 1 | SA722 | 04008000h-0403FFFFh |
| 256 | 255 | SA273-SA527 | 04040000h-07FFFFFFh |
Per the S70FS01GS datasheet (Document Number. 002-03833, Rev. *B), the following bits for CR1NV and CR3NV must be identical:
- Configuration Register 1 bits 7 to 3 and 1 to 0 in CR1NV[7:3, 1:0]
- Configuration Register 3 bits 7 to 4 and 2 to 0 in CR3NV[7:4, 2:0]
This means that the sector configuration bits CR1NV[2] and CR3NV[3] can be set to any valid combinations you like, but they can be programmed (set to 1) only once since these bits are one-time programmable (OTP). Here are the register definitions from the datasheet:
This means that you have the following options:
| CR1NV[2] low device | CR1NC[2] high device | CR3NV[3] low device | CR3NV[3] high device | |
Default
| 0 | 0 | 0 | 0 |
| 1 | 0 | 0 | 0 |
| 0 | 1 | 0 | 0 |
| 1 | 1 | 0 | 0 |
| 0 | RFU | 0 | 1 |
| 1 | RFU | 0 | 1 |
| RFU | 0 | 1 | 0 |
| RFU | 1 | 1 | 0 |
| RFU | RFU | 1 | 1 |