Bus system and retry method

Details Bus system and retry method Bus system and retry method

2006-07-11

2006-07-11

Lamarre, Guy (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S043000, C714S056000

Reexamination Certificate

active

07076719

ABSTRACT:
A slave interface is equipped with a register that stores a retry set value SRI that is unique for a slave device and a pseudo random number generator that generates a random number value RN, and when a non-acknowledgement response is sent corresponding to a transmission request REQb from a master device, the slave interface transmits non-acknowledgement response incidental information NAINFb that includes the retry set value SRI and the random number value RN to the master interface2a. The master interface2aextracts the retry set value SRI and the random number value RN from the non-acknowledgement response incidental information NAINFb, calculates a retry interval value by adding these, and when the interval time according to the retry interval value has passes, resends the transmission request REQb to the slave device. Since the retry interval time is independently set every time, live-lock may be prevented.

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Copy of Japanese Office Action dated Jun. 1, 2004 (and English translation of relevant portion).
Copy of Japanese Office Action dated Jan. 4, 2005 (and English translation of relevant portion).

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