Visible to Intel only — GUID: sfo1410068469103
Ixiasoft
Visible to Intel only — GUID: sfo1410068469103
Ixiasoft
14.4.4. Local Memory Buffer
The NAND flash controller has three local SRAM memory buffers.
- The write FIFO buffer is a 128 × 32-bit memory (512 total bytes)
- The read FIFO buffer is a 32 × 32-bit memory (128 total bytes)
- The ECC buffer is a 96 × 16-bit memory (1536 total bytes)
Each of these memories is protected by ECC, and by interrupts for single and double-bit errors. The ECC block is integrated around a memory wrapper. It provides outputs to notify the system manager when single-bit correctable errors are detected (and corrected) and when double-bit uncorrectable errors are detected. The ECC logic also allows injection of single- and double-bit errors for test purposes. It must be initialized to enable the ECC function.