| US 7,352,206 B1 | ||
| Integrated circuit device having state-saving and initialization feature | ||
| Limin Zhu, Fremont, Calif. (US); Theodore Speers, San Jose, Calif. (US); and Gregory Bakker, San Jose, Calif. (US) | ||
| Assigned to Actel Corporation, Mountain View, Calif. (US) | ||
| Filed on May 28, 2004, as Appl. No. 10/857,472. | ||
| Application 10/857472 is a continuation in part of application No. 10/843701, filed on May 10, 2004, granted, now 7,170,315. | ||
| Claims priority of provisional application 60/491788, filed on Jul. 31, 2003. | ||
| Int. Cl. H03K 19/173 (2006.01) | ||
| U.S. Cl. 326—38 [326/39] | 19 Claims |
| 1. An integrated circuit device having a state-saving feature comprising:
a programmable logic block;
at least one volatile data storage unit;
a non-volatile memory block;
a condition-sensing circuit for detecting at least one condition;
a boundary-scan register chain selectively coupleable to said at least one volatile data storage unit; and
a control circuit coupled to and responsive to said condition-sensing circuit, said control circuit operable to selectively
couple said boundary-scan register chain to said at least one volatile data storage unit to write data into said non-volatile
memory block from said at least one volatile data storage unit.
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