Automatic switch to single SPI mode when entering UDPD
US10521154B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 16, 2016 |
| Grant date | Dec 31, 2019 |
| Priority date | — |
| Expiry date | Dec 21, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C5/148
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of controlling an ultra-deep power down (UDPD) mode in a memory device, can include: receiving a write command from a host via an interface; beginning a write operation on the memory device to execute the write command; reading an auto-UDPD (AUDPD) configuration bit from a status register; switching the interface to a Single SPI mode in response to the write command and the AUDPD configuration bit being set; completing the write operation on the memory device; automatically entering the UDPD mode upon completion of the write operation in response to the AUDPD configuration bit being set; and entering a standby mode upon completion of the write operation in response to the AUDPD configuration bit being cleared.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.