Sandisk Technologies Inc.

Western Digital Technologies, Inc.

Eitan Lerner

Doron Ganon

Baruch Boris Cohen

Efraim Dalumi

Rather than waiting on a squelch to detect the difference in the state from steady to floating, this disclosure suggests using the time from when a reference clock is turned on to begin the process to exit the hibernation state. The reference clock is turned off while a data storage device is in the hibernation state to save power. Once the host is ready for the device to exit the hibernation state, the reference clock is turned on. The reference clock is monitored for the change. Once the reference clock is on, the data storage device returns to a steady state. In the ready state, the data storage device has a shortened ready time. Once the ready time is complete, the data storage device may now exit the hibernation state without waiting on squelch detection or a hibernation exit request from the host.

Hiberate (HIB8) exit time for universal flash storage (UFS) devices by monitoring when to enable or disable low power states without waiting on squelch detection

The present disclosure generally relates to an embedded physical layer (EPHY) for a field programmable gate array (FPGA). The EPHY for the FPGA is for a testing device that can receive and transmit in both the high speed PHYs, as well as low speed PHYs, such as MIPI PHYS (MPHYs), to meet universal flash storage (UFS) specifications. The testing device with the EPHY for the FPGA provides flexibility to support any specification updates without the need of application specific (ASIC) production cycles.

Embedded PHY (EPHY) IP core for FPGA

The present disclosure generally relates to an embedded physical layer (EPHY) for a field programmable gate array (FPGA). The EPHY for the FPGA is for a testing device that can receive and transmit in both the high speed PHYs, as well as low speed PHYs, such as MIPI PHYs (MPHYs), to meet universal flash storage (UFS) specifications. The testing device with the EPHY for the FPGA provides flexibility to support any specification updates without the need of application specific (ASIC) production cycles.

A dynamic bus inversion (DBI) circuit disposed between a transmitter and a receiver for generating an inversion control signal that is communicated to the receiver and used to perform inversion control on data communicated along a data path between the transmitter and the receiver includes a delay data setup circuit to receive the data from the transmitter. A majority vote function circuit is used to perform majority voting for consecutive bits of data output by the delay data setup circuit to generate majority data output. An inversion control circuit receives the majority data output, retrieves feedback data from a preceding inversion control output and interprets the two data to generate inversion control signal, which is used to perform inversion control on data along the data path before being communicated to the receiver. The inversion control signal is used by the receiver to interpret the data received from the data path.

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Karmiel, Israel

Eitan Lerner