Circuit block for programmable logic devices, configurable as a user-writable memory or a logic circuit
作者： Randy C. Steele
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摘要: A standard logic block, or macrocell, is provided for use on programmable devices. The macrocell uses RAM to perform functions, and further includes circuitry which allows writing of data the during use. Each block can be configured at programming time either a user RAM, allowing write such memory use, as performing functions. contents macrocells providing functions cannot charged except by reprogramming device.
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