System and method of write posting in a universal serial bus sys

Details System and method of write posting in a universal serial bus sys System and method of write posting in a universal serial bus sys

1997-07-10

2000-06-06

Yoo, Do Hyun

Electrical computers and digital processing systems: memory

Storage accessing and control

711168, 711169, 711147, 710 53, 710 33, 710113, G06F 1314

Patent

active

060732059

ABSTRACT:
An apparatus and method for write posting in a universal serial bus (USB) system includes a host computer connected to USB devices via a USB. The host computer generates requests to write data to memory within the USB device. The host computer includes a queue for posting the write requests on generation thereof. The write requests are posted in the queue until the host computer transmits a single data packet generated from the posted write requests. The Data packet is generated in response to the host computer generating a request to read data from the USB device, the host computer determining that the most recently posted write request is directed to a memory location within the USB device which is nonpostable, or an indication that the queue lacks storage space for subsequent write requests. The USB device receives the transmitted Data packet from the host computer and writes data to internal memory locations in accordance with the received Data packet.

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