Integrated circuit with shared hotsocket architecture

Details Integrated circuit with shared hotsocket architecture Integrated circuit with shared hotsocket architecture

2006-08-01

2006-08-01

Cottingham, John R. (Department: 2111)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus expansion or extension

Reexamination Certificate

active

07085870

ABSTRACT:
Integrated circuits such as programmable logic devices are provided with hotsocket detection circuitry. The hotsocket detection circuitry monitors signals on data pins and power supply voltages. If the data pins become active before the power supply voltages have reached appropriate levels, a hotsocket condition is identified. When a hotsocket condition is identified, driver circuitry on the integrated circuit can be disabled by a hotsocket signal. Conductive paths may be used to share hotsocket detectors among multiple blocks of input-output circuitry.

REFERENCES:
patent: 6040712 (2000-03-01), Mejia
patent: 6549032 (2003-04-01), Shumarayev et al.
patent: 6630844 (2003-10-01), Chong et al.
patent: 6870400 (2005-03-01), Chong et al.
patent: 6972593 (2005-12-01), Wang et al.
U.S. Appl. No. 10/635,625, filed Aug. 5, 2003.

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