lrs1383 Sharp Microelectronics of the Americas, lrs1383 Datasheet - Page 113

• Manufacturer Part Number: lrs1383
• Description: Stacked Chip 32m Flash And 8m Sram
• Manufacturer: Sharp Microelectronics of the Americas

FUM00701
67
6 Common Flash Interface
This section defines the data structure of the Common
Flash Interface (CFI) code, which is called query code.
Query code can be read by writing the Read Query
command (98H) to the target partition’s CUI. System
software should confirm this code to gain critical
information such as block size, density, bit organization
and electrical specifications. Once this code has been
obtained, the software will understand which command
sets should be used to enable erases, programs and other
operations for the flash memory device. The query code is
part of an overall specification for multiple command set
and control interface descriptions called Common Flash
Interface or CFI.
Common
Flash Interface for
the LH28F320BX/
LH28F640BX series is now under development. Query
code is described in the next version of Appendix.
Rev. 2.20
Appendix to Spec No.: MFM2-J13207
Model No.: LRS1383
March 1, 2001