Memory controlling method, memory controller and memory storage apparatus

A memory controller for controlling a rewritable non-volatile memory module, wherein the rewritable non-volatile memory module has a plurality of memory dies, the memory controller comprising:

• a host interface, configured to couple to a host system;
• a memory interface, configured to couple to the rewritable non-volatile memory module;
• a micro control unit, coupled to the host interface and the memory interface;
• a memory management unit, coupled to the micro control unit and configured to group the memory dies into a plurality of memory die groups;
• a data transmission mode identifying unit, coupled to the micro control unit and configured to identify whether a transmission mode between the host interface and the host system belongs to a first transmission mode or a second transmission mode;
• and
• a memory erasing unit, coupled to the micro control unit,
• wherein when the transmission mode belongs to the first transmission mode, the memory erasing unit applies a first erasing mode to erase data stored in the memory dies, wherein at least a part of the memory die groups are enabled simultaneously in the first erasing mode,
• wherein when the transmission mode belongs to the second transmission mode, the memory erasing unit applies a second erasing mode to erase the data stored in the memory dies, wherein any two of the memory die groups are not enabled simultaneously in the second erasing mode.

A memory storage apparatus, comprising:

• a connector, configured to couple to a host system;
• a rewritable non-volatile memory module, having a plurality of memory dies;
• and
• a memory controller, coupled to the rewritable non-volatile memory module,
• wherein the memory controller is configured to group the memory dies into a plurality of memory die groups, and identify whether a transmission mode between the connector and the host system belongs to a first transmission mode or a second transmission mode,
• wherein when the transmission mode belongs to the first transmission mode, the memory controller applies a first erasing mode to erase data stored in the memory dies, wherein at least a part of the memory die groups are enabled simultaneously in the first erasing mode,
• wherein when the transmission mode belongs to the second transmission mode, the memory controller applies a second erasing mode to erase the data stored in the memory dies, wherein any two of the memory die groups are not enabled simultaneously in the second erasing mode.

A memory controlling method for a memory storage apparatus, wherein the memory storage apparatus has a rewritable non-volatile memory module, and the rewritable non-volatile memory module has a plurality of memory dies and a plurality of data input/output buses coupled to the memory dies, the memory controlling method comprising:

• identifying whether a transmission mode between the memory storage apparatus and a host system belongs to a first transmission mode or a second transmission mode;
• applying a first erasing mode to erase data stored in the memory dies when the transmission mode belongs to the first transmission mode;
• and
• applying a second erasing mode to erase the data stored in the memory dies when the transmission mode belongs to the second transmission mode,
• wherein an operating current of the first erasing mode is greater than an operating current of the second erasing mode.