Reference frequency setting method, memory controller and memory storage apparatus

摘要

A reference frequency setting method of a memory storage apparatus including the following steps is provided. A setting code is read from a memory module or a storage unit by a first signal transmission path and stored into a register circuit. The setting code includes a first setting information. Whether the data having a specific frequency is inputted is detected. If not, the setting code stored in the register circuit is read, such that an oscillator circuit module of the memory storage apparatus generates a first reference frequency based on the first setting information. If yes, the setting code stored in the register circuit is updated by a second signal transmission path, and the updated setting code is read, such that the oscillator circuit module generates a second reference frequency based on a second setting information. The updated setting code includes the second setting information.

主权项

1. A reference frequency setting method of a rewritable non-volatile memory storage apparatus, wherein the rewritable non-volatile memory storage apparatus comprises a rewritable non-volatile memory module, a storage unit, and an oscillator circuit module, and the oscillator circuit module comprises a register circuit, the rewritable non-volatile memory storage apparatus does not comprise a crystal oscillator, and the reference frequency setting method comprises:
reading a setting code from the rewritable non-volatile memory module or the storage unit by a first signal transmission path, and storing the setting code into the register circuit, wherein the setting code comprises a first setting information; detecting whether a data having a first frequency is inputted; if the data having the first frequency is not inputted, reading the setting code stored in the register circuit, such that the oscillator circuit module generates a first reference frequency based on the first setting information of the setting code; if the data having the first frequency is inputted, updating the setting code stored in the register circuit by a second signal transmission path, wherein the updated setting code comprises a second setting information; and if the data having the first frequency is inputted, reading the updated setting code stored in the register circuit, such that the oscillator circuit module generates a second reference frequency based on the second setting information.