PCI express-compatible controller and interface that...

Details PCI express-compatible controller and interface that... PCI express-compatible controller and interface that...

2008-10-20

2010-12-07

Peyton, Tammara (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral adapting

C710S005000, C710S008000, C710S009000, C710S010000, C710S013000, C710S072000, C710S073000, C711S103000

Reexamination Certificate

active

07849242

ABSTRACT:
A PCI Express-compatible flash device can include one or more flash memory modules, a controller, and an ExpressCard interface. The controller can advantageously provide PCI Express functionality as well as flash memory operations, e.g. writing, reading, or erasing, using the ExpressCard interface. A PIO interface includes sending first and second memory request packets to the flash device. The first memory request packet includes a command word setting that prepares the flash device for the desired operation. The second memory request packet triggers the operation and includes a data payload, if needed. A DMA interface includes sending the second memory request from the flash device to the host, thereby triggering the host to release the system bus for the DMA operation.

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