Embedded memorizer and embedded memorizer system
The embed memorizer and the embedded memorizer system can avoid poor memorizer capacity expansion caused by the fact that theembed memorizer has no redundant NAND flash memory interface to be connected with the off-chip Nand flash memory.
Abstract
The invention discloses an embedded memorizer and an embedded memorizer system. The embedded memorizer comprises an on-chip NADN flash memory, a flash memory control unit, a multimedia card (MMC) interface unit, an on-chip flash memory interface unit and an off-chip flash memory interface. The embedded memorizer system comprises the embedded memorizer and one or a plurality of extended NAND flash memories. The extended NAND flash memories exchange data with the flash memory control unit through the off-chip flash memory interface. The embedded memorizer and the embedded memorizer system can avoid poor memorizer capacity expansion caused by the fact that the embedded memorizer has no redundant NAND flash memory interface to be connected with the off-chip NAND flash memory. Integral memorizer costs of products can be reduced through combination of the NAND flash memories of various types.