Patent ID: 11887682
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 14:
15. The method of reading and writing according to claim 14, wherein the switch module further comprises a third switch unit, wherein the third switch unit has a first terminal, a second terminal and a control terminal, wherein the first terminal of the third switch unit is coupled to the first end of the anti-fuse device, wherein the second end of the third switch unit is coupled to the ground signal, and wherein the control terminal of the third switch unit is coupled to the control module;
wherein the first state of the switch module is when the first switch unit and the second switch unit are open, and the third switch unit is closed;
wherein the second state of the switch module is when the first switch unit and the second switch unit are closed, and the third switch unit is open; and
wherein the third state of the switch module is, if the anti-fuse device is not broken down, the control module controls the first switch unit to turn on and the second switch unit to turn off, and the third switch unit closed; and if the anti-fuse device is broken down, the control module controls the first switching unit to close, the second switching unit to open, and the third switching unit to close.