Abstract:

Dual-space memory is a new type of storage system invented in 2013. The key is to map the memory space of CPU to the huge dual-space memory, called the pulling memory mapping theory. This paper proposes the first physical equipment of the dual-space memory and implementation of the pulling memory mapping technique. Design of an experimental system including the dual-space memory and latch group is discussed, and a practical experiment is completed. An operation for mapping the memory space to the huge dual-space memory is achieved on an experimental system. Correctness of the proposed technique is shown in mapping operations. By solving the problem of connecting memory space to the huge dual-space memory, a foundation for building dual-space memories has been laid and the pulling memory mapping technique has been used. The experiment system is made of a TQ2440 Core 2.0 core board, a 1 GB dual-space memory and a latch group consisting of eight 12-bit latches. The core board has 2 MB internal memory space. All access to the 2 MB internal memory space are converted automatically to a local range of a 1 GB dual-space memory by one of the eight 12-bit latches. The local range can be moved in the 1 GB dual-space memory by a pushing command.

Key words: dual-space memory, non-volatile random access memory (NVRAM), pulling memory mapping theory, unclosable window, ternary optical computer (TOC)