Data buffer and data reading method

Abstract

The embodiment of the invention discloses a data buffer and a data reading method, and the method is applied to the data buffer. The data buffer comprises a first register and a second register; the method comprises the steps that a first register receives a data reading signal sent from the outside, wherein the data reading signal is transmitted in a storage space of the first register accordingto a first preset direction and / or a second preset direction, the data is stored in a storage space of the first register, the first preset direction is multiple directions, and the second preset direction is a single direction; and the first register is used for transferring the data flowing in the data reading signal transmission process into the second register. By implementing the data readingmethod, the data in the determined data range can be stored in the second register under the action of one data reading signal, and the data reading logic is simple.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to a data buffer and a data reading method. Background technique [0002] At present, in the current ASIC (Application Specific Integrated Circuit, ASIC) design, the data buffer is usually set by setting an appropriate number of first-in-first-out queue (First Input First Output, FIFO) data buffers to prevent data loss. Or handle data glitches. Specifically, the FIFO data buffer implements a first-in-first-out policy during the data dumping process, for example, the data that enters first is read out from the FIFO data buffer first. [0003] In the prior art, the working principle of FIFO can be described as: using independent read and write pointers to sequentially write data into storage units under the control of read and write pulses, or to sequentially read data from storage units. Taking reading data as an example, when reading data from the FIFO data buffer, sta...

AI Technical Summary

Problems solved by technology

In this implementation, the logic of data reading becomes very complicated

Images