| 摘要 |
PROBLEM TO BE SOLVED: To provide a programmable logic device. SOLUTION: The programmable logic device (100) has a plurality of logic blocks (102) and a routing resource for transmitting signals among the blocks. The logic blocks include a plurality of product term circuits and a mode select circuit. Each product term circuit includes a constitution cell and a logic gate. Each logic block is configurable to perform product term functions and memory functions, such as RAM, dual-port RAM, ROM, CAM, FIFO, and a switch. COPYRIGHT: (C)2004,JPO
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