Storage unit and processing system

Embodiments of the invention disclose a storage unit. The storage unit comprises at least one single-bit storage structure, wherein each single-bit storage structure comprises four random access memories RAM: a first RAM, a second RAM, a third RAM and a fourth RAM, two read-out ports and two write-in ports; the two read-out ports comprise a first read-out port and a second read-out port; the two write-in ports comprise a first write-in port and a second write-in port; the first read-out port is connected with each of the first RAM and the second RAM, and is used for reading data stored in the first RAM and the second RAM; the second read-out port is connected with each of the third RAM and the fourth RAM, and is used for reading data stored in the third RAM and the fourth RAM; the first write-in port is connected with each of the first RAM and the third RAM, and is used for writing data into the first RAM and the third RAM; and the second write-in port is connected with each of the second RAM and the fourth RAM, and is used for writing data into the second RAM and the fourth RAM. Meanwhile, the embodiments of the invention furthermore disclose a processing system.