Inventors:
Wei Han - Beaverton OR, US
Zheng Chen - Upper Macungie PA, US
Warren Juenemann - Cornelius OR, US
Eric Lee - Allentown PA, US
Assignee:
Lattice Semiconductor Corporation - Hillsboro OR
International Classification:
H03K 19/173
Abstract:
In one embodiment, a programmable logic device such as an FPGA includes a programmable fabric adapted to operate normally and in a sleep mode, and a general purpose input/output port (I/O). The I/O port is adapted to function in conventional fashion during normal operation of the programmable fabric and as a wakeup control port during the sleep mode.