US 12,217,812 B2
Data input verification method and data input verification structure
Feng Lin, Hefei (CN)
Assigned to CHANGXIN MEMORY TECHNOLOGIES, INC., Hefei (CN)
Filed by CHANGXIN MEMORY TECHNOLOGIES, INC., Hefei (CN)
Filed on Aug. 2, 2023, as Appl. No. 18/363,874.
Application 18/363,874 is a continuation of application No. PCT/CN2022/123924, filed on Oct. 8, 2022.
Claims priority of application No. 202210761364.6 (CN), filed on Jun. 29, 2022.
Prior Publication US 2024/0006009 A1, Jan. 4, 2024
Int. Cl. G11C 29/00 (2006.01); G11C 29/36 (2006.01)
CPC G11C 29/36 (2013.01) 14 Claims
OG exemplary drawing
 
1. A data input verification method, comprising:
generating a randomly combined input character string;
generating a test input signal inputted to a receiver of a memory based on the input character string and a simulated inter-symbol interference value, wherein the simulated inter-symbol interference value is an estimated value of inter-symbol interference transmitted from an output end of a memory controller to the receiver;
inputting the test input signal into the receiver and obtaining an output signal of the receiver; and
determining whether a character string represented by the output signal is equal to the input character string, and generating an eye diagram of the output signal;
wherein, in generated test input signal, a consecutive non-initial character “1” corresponds to a preset positive swing amplitude, a non-consecutive character “1” corresponds to an interference positive swing amplitude, a consecutive non-initial character “0” corresponds to a preset negative swing amplitude, and a non-consecutive character “0” corresponds to an interference negative swing amplitude; a value of the preset positive swing amplitude is greater than a value of the interference positive swing amplitude, and a value of the preset negative swing amplitude is less than a value of the interference negative swing amplitude.