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S29GL01GT12TFByyx Datasheet(Fiches technique) 9 Page - Cypress Semiconductor

Numéro de pièce S29GL01GT12TFByyx
Description  1 Gbit (128 Mbyte), 512 Mbit (64 Mbyte)
Télécharger  105 Pages
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Fabricant  CYPRESS [Cypress Semiconductor]
Site Internet  http://www.cypress.com
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Document Number: 002-00247 Rev. *G
Page 9 of 105
S29GL01GT, S29GL512T
Like the Device ID information, CFI information is structured to work with any memory data bus width e. g. x8, x16, x32. The code
values are always byte wide but are located at data bus width address boundaries such that incrementing the device address reads
successive byte, word, or double word locations with the codes always located in the least significant byte location of the data bus.
Because the data bus is word wide each code byte is located in the lower half of each word location and the high order byte is
always 0.
For further information, please refer to the CFI Specification, Version 1.4 (or later), and the JEDEC publications JEP137-A and
JESD68.01. Please contact JEDEC (www.jedec.org) for their standards and the CFI Specification may be found at the Cypress Web
site (www.cypress.com/spansionappnotes at the time of this document's publication) or by contacting a local Cypress sales office
listed on the web site.
2.3
Status Register ASO
The Status Register ASO contains a single word of registered volatile status for Embedded Algorithms. When the Status Register
read command is issued, the current status is captured (by the rising edge of WE#) into the register and the ASO is entered. The
Status Register content appears on all word locations. The first read access exits the Status Register ASO (with the rising edge of
CE# or OE#) and returns to the address space map in use when the Status Register read command was issued. Write commands
will not exit the Status Register ASO state.
2.4
Data Polling Status ASO
The Data Polling Status ASO contains a single word of volatile memory indicating the progress of an EA. The Data Polling Status
ASO is entered immediately following the last write cycle of any command sequence that initiates an EA. Commands that initiate an
EA are:
Word Program
Program Buffer to Flash
Chip Erase
Sector Erase
Erase Resume / Program Resume
Program Resume Enhanced Method
Blank Check
Lock Register Program
Password Program
PPB Program
All PPB Erase
Evaluate Erase Status
The Data Polling Status word appears at all word locations in the device address space. When an EA is completed the Data Polling
Status ASO is exited and the device address space returns to the address map mode where the EA was started.
2.5
Secure Silicon Region ASO
The Secure Silicon Region (SSR) provides an extra memory area that can be programmed once and permanently protected from
further changes, i. e., it is a One Time Program (OTP) area. The SSR is
2048 bytes in length. It consists of 512 bytes for Factory Locked Secure Silicon Region (SSR0), 1024 bytes for Customer Locked
Secure Silicon Regions (SSR1 and SSR2), and 512 bytes for Customer Locked Secure Silicon Region with Read password (SSR3).
SSR0 is shipped locked, preventing further programming. SSR1 and SSR2 are OTP with each having separate lock bits and once
locked no further programming is allowed for that region. SSR3 is an OTP and requires a SSR3 password to read or program that
region. Once SSR3 is locked no further programming is allowed for that region.




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