DYNAMIC DRIVE STRENGTH OPTIMIZATION

摘要

A system for optimizing drive strength may be utilized for identifying the maximum data transfer rate for different devices and different device configurations. The drive strength may be optimized for input/output (I/O) devices by measuring voltage drops on I/O power supply using different test patterns. The maximum drive strength is identified that satisfies a limit or threshold for the allowed voltage drop level. The test pattern may include a simultaneous toggling of each I/O device. A slew rate for the device may be utilized along with the drive strength for identifying the maximum data transfer rate.

主权项

1. A flash memory device comprising:
a non-volatile storage having an array of memory blocks; and a controller in communication with the non-volatile storage, wherein the controller is configured to:
optimize drive strength of a plurality of input/output (“I/O”) devices of the controller based on power performance;measure a quality of a data signal; anddetermine a maximum data transfer speed based on the optimized drive strength and the measured data signal quality at different times.