Concatenating secure digital input output (SDIO) interface

Details Concatenating secure digital input output (SDIO) interface Concatenating secure digital input output (SDIO) interface

2008-06-25

2011-11-01

Hafiz, Tariq (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Direct memory accessing

C710S110000

Reexamination Certificate

active

08051222

ABSTRACT:
An apparatus and a process for transferring packet data includes receiving packets from a first interface such as a network interface and transferring data to a second interface such as an SD Bus interface such as SDIO using a protocol such as one described in SDCard.org. The SD Bus second interface operates as a slave device to a master device, and the packet transfer from first interface to second interface includes concatenating length fields and packet data fields from packets received on the first interface to form a superframe which is provided to the second interface at time of data transfer. The formation of each superframe includes starting a timer such that the superframe is transmitted to the second interface by asserting an interrupt on that interface when either the timer expires, the number of packet from the first interface exceeds a threshold, or the amount of data from the first interface exceeds a threshold.

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