A dual-port SRAM access control system and method based on bandwidth expansion cross addressing

The invention discloses a dual-port SRAM access control system and method based on bandwidth expansion cross addressing. The system comprises an on-chip memory bank, two chip selection generating units, a cross addressing access processing unit, a data alignment control unit, a data splicing unit and a variable capacity buffer area. The method comprises a host access control interface access method and a multi-hardware access control interface access method. The on-chip memory bank, the data alignment unit and the cross-addressing access unit realize the parallel access of multiple dual-port SRAM at the same time, save time, realize the compact storage of on-chip memory bank, achieve the most efficient use of memory space, avoid the problem of simultaneous access collision, and ensure theefficient work of the whole system maximally; At that same time, the invention has simple and clear design structure, flexible and efficient control, strong universality of multi-device access cross address, convenient portability of variable bandwidth access and easy implementation, and can be widely used in embed system chips and application specific integrated circuits.