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NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 836 -
Revision V1.30
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Flash Memory Interface (FMI)
5.25
5.25.1 Overview
The Flash Memory Interface (FMI) of this Chip has DMA unit and FMI unit. The DMA unit provides a
DMA (Direct Memory Access) function for FMI to exchange data between system memory (ex.
SDRAM) and shared buffer (128 bytes), and the FMI unit control the interface of eMMC or NAND
flash. The interface controller can support eMMC and NAND-type flash and the FMI is cooperated with
DMAC to provide a fast data transfer between system memory and cards.
5.25.2 Features
Support single DMA channel and address in non-word boundary.
Support hardware Scatter-Gather function.
Support 128Bytes shared buffer for data exchange between system memory and flash
device. (Separate into two 64 bytes ping-pong FIFO).
Support eMMC Flash device.
Supports SLC and MLC NAND type Flash.
Adjustable NAND page sizes. (512B+spare area, 2048B+spare area, 4096B+spare area
and 8192B+spare area).
Support up to 4bit/8bit/12bit/15bit/24bit hardware ECC calculation circuit to protect data
communication.
Support programmable NAND timing cycle.