FLASH MULTIPLE-PASS WRITE WITH ACCURATE FIRST-PASS WRITE

摘要

An indication to store a data value in Flash memory is received. An accurate coarse write is performed on the Flash memory, including by: storing a first voltage level in the Flash memory and setting a configuration setting of the Flash memory to a first setting. The first voltage level, when interpreted using the configuration setting at the first setting, corresponds to the data value. A fine write is performed on the Flash memory, including by: storing a second voltage level in the Flash memory and setting the configuration setting of the Flash memory to a second setting. The second voltage level, when interpreted using the configuration setting at the second setting, corresponds to the data value.

主权项

1. A system, comprising:
a Flash controller configured to:
receive an indication to store a data value in a Flash memory;perform an accurate coarse write on the Flash memory, including by:
storing a first voltage level in the Flash memory; andsetting a configuration setting of the Flash memory to a first setting, wherein the first voltage level, when interpreted using the configuration setting at the first setting, corresponds to the data value; andperform a fine write on the Flash memory, including by:
storing a second voltage level in the Flash memory; andsetting the configuration setting of the Flash memory to a second setting, wherein the second voltage level, when interpreted using the configuration setting at the second setting, corresponds to the data value; and is the Flash memory.