公开(公告)号：US20050160218A1

公开(公告)日：2005-07-21

申请号：US10761853

申请日：2004-01-20

申请人： Sun-Teck See ,  Tzu-Yih Chu ,  Ben-Wei Chen ,  Horng-yee Chou ,  Szu-Kuang Chou ,  Charles Lee

发明人： Sun-Teck See ,  Tzu-Yih Chu ,  Ben-Wei Chen ,  Horng-yee Chou ,  Szu-Kuang Chou ,  Charles Lee

IPC分类号： G06F3/06 ,  G06F12/00 ,  G06F13/16 ,  G06F13/40

CPC分类号： G06F13/405 ,  G06F3/0601 ,  G06F13/1694 ,  G06F2003/0694

摘要： A FLASH controller is disclosed. The controller comprises a USB interface unit. The USB interface unit implements a USB standard that has a bus speed equal or greater than 12 Mb/s. The controller includes an internal bus coupled to the USB interface unit; and a FLASH interface unit coupled to the internal bus. The FLASH interface unit includes FLASH controller logic that allows the throughput for access to the FLASH memory to match the speed of the USB standard. Advantages of the FLASH controller in accordance with the present invention include (1) utilizing the higher speed USB interface such as the USB 2.0 standard, which substantially increases the serial throughput between USB host and FLASH controller; (2) utilizing more advanced FLASH control logic which is implemented to raise the throughput for the FLASH memory access; (3) utilizing an intelligent algorithm to detect and access the different FLASH types, which broadens the sourcing and the supply of FLASH memory; (4) by storing the software program along with data in FLASH memory which results in the cost of the controller being reduced, and also makes the software program field changeable and upgradeable; and (5) providing high integration, which substantially reduces the overall space needed and reduces the complexity and the cost of manufacturing.

摘要翻译： 公开了一种闪存控制器。 控制器包括USB接口单元。 USB接口单元实现总线速度等于或大于12 Mb / s的USB标准。 该控制器包括耦合到USB接口单元的内部总线; 以及耦合到内部总线的FLASH接口单元。 FLASH接口单元包括FLASH控制器逻辑，允许访问闪速存储器的吞吐量与USB标准的速度相匹配。 根据本发明的闪存控制器的优点包括（1）利用诸如USB 2.0标准的更高速USB接口，其大大增加了USB主机和闪存控制器之间的串行吞吐量; （2）利用更高级的FLASH控制逻辑，其实现以提高FLASH存储器访问的吞吐量; （3）利用智能算法检测和访问不同的FLASH类型，拓宽了FLASH存储器的采购和供应; （4）通过将软件程序与FLASH存储器中的数据一起存储，从而降低控制器的成本，并使软件程序区域可以更改和升级; 和（5）提供高集成度，这大大降低了所需的总体空间并降低了制造的复杂性和成本。