CPC G11C 11/4076 (2013.01) [G06F 3/0604 (2013.01); G06F 3/0653 (2013.01); G06F 3/0659 (2013.01); G06F 3/0673 (2013.01); G11C 7/222 (2013.01); G11C 11/409 (2013.01)] | 20 Claims |
1. A method for performing a duty adjustment operation in a memory system, the method comprising:
performing a first duty adjustment operation on a write clock, the first duty adjustment operation including:
transmitting, by a memory controller, the write clock to a synchronous dynamic random access memory (SDRAM) device;
performing a first duty monitoring operation on the write clock to generate a first duty monitoring information and transmitting the first duty monitoring information to the memory controller; and
adjusting a duty cycle of the write clock based on the first duty monitoring information; and
performing a second duty adjustment operation on a read clock, the second duty adjustment operation including:
generating, by the SDRAM device, the read clock based on the write clock and transmitting the read clock to the memory controller;
performing a second duty monitoring operation on the read clock to generate a second duty monitoring information and transmitting the second duty monitoring information to the memory controller; and
adjusting a duty cycle of the read clock based on the second duty monitoring information.
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