The basic logic unit, a
¡°tile¡±, is very similar to a gate array gate and is basically a programmable
3-input, 1-output cell. Each input may be programmed for signal inversion,
eliminating the wasteful use of cells as inverter elements. |
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Virtually any 3-input logic
function, including flip-flops and latches, can be programmed (excluding
XOR). This extraordinary flexibility allows a programming range from 100%
combinatorial to 100% sequential and any combination of both. As a result,
device resources are used as efficiently as possible, allowing for smaller
die sizes, higher performance and lower power. |