Memory Control Circuit Sleep Pin Flag Logic

The patent applies preliminary action by setting a sleep pin connecting flag to a first value before the device sleep function is enabled. This flag is configured in advance to indicate that the device sleep signal pin is initially at a first logic level, preventing premature or incorrect entry into sleep mode. The flag serves as a preliminary state marker that ensures the device only enters sleep mode when proper connection and protocol support are confirmed, thus resolving the contradiction between power saving and reliable sleep mode entry.

The patent implements feedback by using the sleep pin connecting flag to monitor and confirm the connection status of the device sleep signal pin before enabling the device sleep function. The flag provides feedback information about whether the pin is correctly connected and at the expected logic level. This feedback mechanism ensures that the device only enters sleep mode when proper connection is confirmed, preventing mistaken sleep mode entry while still allowing power savings when conditions are appropriate.

The patent applies self-service by having the memory control circuit unit automatically configure and manage the sleep pin connecting flag without requiring external intervention or complex control logic. The circuit serves itself by internally tracking the logic level state of the device sleep signal pin and maintaining the flag in the appropriate state. This self-managing approach improves sleep mode entry accuracy while minimizing the increase in device complexity, as the flag management is handled autonomously by the existing control circuitry.