HIGH SPEED FLASH CONTROLLERS

摘要

A high speed USB memory controller includes a microprocessor, flash memory, memory buffers directly accessible to the microprocessor and flash memory, and a USB interface for writing data directly into the memory buffers. This allows devices with multiple flash die to operate at full bus speed.

主权项

1. A Universal Serial Bus (USB) flash memory device comprising:
a plurality of flash die; and a memory controller, the memory controller comprising:
a microprocessor;a plurality of memory buffers; a USB interface to directly deposit data from an external bus into the plurality of memory buffers; a flash Direct Memory Access (DMA) module to access data in the plurality of memory buffers and transfer the data from a first memory buffer to a flash die while the USB interface is depositing data from the external bus in a second memory buffer.