| 摘要 |
A priority encoder having MxN input lines and M output lines included M N-bit input priority encoder units, a precharging device, and a zero detecting device. Each N-bit input priority encoder unit includes an N-bit priority detecting device, a memory, a selector, a carry signal generating device, and a control device. The control device controls the output of the N-bit input prioroity encoder in accordance with the outputs of the N-bit priority detecting device and the carry signal generating device.
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