This application note provides overview changes implemented between ve

The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers.

This application note provides overview changes implemented between ve

Datasheet Thumbnail

Top Searches for this datasheet

Common Flash Interface Version Vendor Specific Extensions
This application note provides overview changes implemented between versions SpansionFlash memory Common Flash Interface (CFI) implementation. JEDEC standard database that read from Flash memory. allows Flash driver software query installed device determine proper configuration, e.g. memory size, speed, special features, other characteristics. JEDEC standard provides vendor specific extensions basic device information. These extensions provide information about optional device features. successive device generations features fields added vendor specific extensions area.
Publication Number
Revision
Amendment
Issue Date March 2004
Benefit
There main benefits using Ease upgrading memory density features Second source availability CFI-compliant Flash allows system designer upgrade memory without inconvenience modifying Flash driver software adapt each device product family. This holds true devices higher density different sector architecture than available time initial system driver development.
Data Structure
From mode user access following information (Note, subsequent data tables provided examples only. productspecific data, refer Spansion Datasheet):
Identification String standard string characters that compliant device will display that Flash driver software confirm that device use. Table System Interface String Information device voltage timing parameter. Table Device Geometry Definition Information command protocol, device size, sector sizes. Table Primary Vendor-Specific Extended Query Information vendor device specific features that supported. Table Table
Addresses (x16) Data 0051h 0052h 0059h 0002h 0000h 0040h 0000h 0000h 0000h 0000h 0000h
Query Identification String
Description Query Unique ASCII String "QRY"
Primary Command Address Primary Extended Table Alternate Command (00h none exists) Address Alternate Extended Table (00h none exists)
Table System Interface String
Addresses (x16) Data 0027h 0036h Min. (Write/Erase) D7-D4: volt, D3-D0: Max. (Write/Erase) D7-D4: volt, D3-D0: Description
Common Flash Interface Version Vendor Specific Extensions
Table
Addresses (x16) Data 0000h 0000h 0007h 0007h 0000h 0000h 0001h 0005h 0004h 0000h
System Interface String (Continued)
Description
Min. voltage (00h present) Max. voltage (00h present) Typical timeout single byte/word Typical timeout Min. size buffer write (00h supported) Typical timeout individual block erase Typical timeout full chip erase (00h supported) Max. timeout byte/word write times typical Max. timeout buffer write times typical Max. timeout individual block erase times typical Max. timeout full chip erase times typical (00h supported)
Table
Addresses (x16) Data 0018h 0002h 0000h 0005h 0000h 0001h 00FFh 0000h 0000h 0001h 0000h 0000h 0000h 0000h 0000h 0000h 0000h 0000h 0000h 0000h 0000h 0000h
Device Geometry Definition
Description
Device size byte
Flash device interface description (refer publication 100) Max. number multi-byte write (00h supported) Number erase block regions within device (01h uniform device, boot device) Erase block region information (refer specification publication 100)
Erase block region information (refer publication 100)
Erase block region information (refer publication 100)
Erase block region information (refer publication 100)
March 2004 Flash Interface Version Vendor Specific Extensions
Table Primary Vendor-Specific Extended Query
Addresses (x16) Data 0050h 0052h 0049h 0031h 0033h 0004h Query-unique ASCII string "PRI" Major version number, ASCII Minor version number, ASCII Address Sensitive Unlock (Bits 1-0) Required, Required Silicon Technology (bits 5-2) 0001 0.17 Erase Suspend Supported, Read Only, Read Write Sector Protect Supported, Number sectors group Sector Temporary Unprotect Supported, Supported Sector Protect Unprotect scheme 29LV800 mode Simultaneous Operation Number sectors banks except boot block Burst Mode Type Supported, Supported Page Mode Type Supported, Word Page, Word Page (Acceleration) Supply Minimum Supported, D7-D4: Volt, D3-D0: 100mV (Acceleration) Supply Maximum Supported, D7-D4: Volt, D3-D0: 100mV Top/Bottom Boot Sector Flag Bottom Boot Device, Boot Device Program Suspend. supported Bank Organization: Number Banks Bank Region Information. Number sectors bank Bank Region Information. Number sectors bank Bank Region Information. Number sectors bank Bank Region Information. Number sectors bank Description
0002h 0001h 0000h 0005h 0063h 0001h 0000h 0085h 00C5h 00xxh 0000h 0004h 0023h 0020h 0020h 0023h
Changes
major difference between Spansionmemory specific extensions version version addition these features Primary Vendor-Specific Extended Query section: Unlock Bypass SecSi Sector size Hardware Reset Time-out during embedded algorithm
Common Flash Interface Version Vendor Specific Extensions
Hardware Reset Time-out during embedded algorithm Erase Suspend Time-out Maximum Program Suspend Time-out Maximum Increased Bank region information from four bank thirty-two bank These changes will implemented SpansionFlash devices. added features highlighted Table Features highlighted bold face type.
Table
Address (byte mode) Data
Updated Primary Vendor-Specific Extended Query
Description query-unique ASCII string "PRI" Major version number ASCII Minor version ASCII Address Sensitive Unlock (DQ1,DQ0) 0000 (Hex) required, 0001 (Hex) Required Process Technology (DQ5-DQ2) 0001 (Hex) 170-nm Floating Gate technology 0010 (Hex) 230-nm MirrorBittechnology 0011 (Hex) 130-nm Floating Gate technology 0100 110-nm MirrorBittechnology 0101 90-nm Floating Gate technology 0110 90-nm MirrorBittechnology Erase Suspend Supported, read only, read write Sector Protect Supported, Number sectors group Sector Temporary Unprotect Supported, Supported Sector Protect/Unprotect scheme 29F040 mode 29F016 mode 29F400 mode 29LV800 mode RESET# =Vid Software command sector locking Sector Protect RESET# =Vid Sector Protect Advanced Sector Protect Simultaneous Operation Supported, Total number sectors banks except BOOT BANK Burst Mode Type Supported, 01=Supported Page Mode Type Supported, word Page, word Page, word Page (Acceleration) Supply Minimum Value Volts Value Millivolts
March 2004 Flash Interface Version Vendor Specific Extensions
Table
Address (byte mode)
Updated Primary Vendor-Specific Extended Query (Continued)
Data Description (Acceleration) Supply Maximum Value Volts Value Millivolts Top/Bottom Sector Flag Boot 8x8kb, Sectors Bottom Bottom Boot Device Boot Device Uniform Bottom Boot Device Uniform Boot Device Program Suspend Supported, 01=Supported Unlock Bypass Supported, Supported SecSi Sector (Customer Area) Size (Bytes) Embedded Hardware Reset Timeout Maximum (ns) Non-Embedded Hardware Reset Timeout Maximum (ns) Erase Suspend Timeout Maximum (us) Program Suspend Timeout Maximum (us) Bank Organization data Zero Number banks Bank1 Region Information Number sectors Bank Bank2 Region Information Number sectors Bank Bank3 Region Information Number sectors Bank Bank4 Region Information Number sectors Bank Bank5 Region Information Number sectors Bank Bank6 Region Information Number sectors Bank Bank7 Region Information Number sectors Bank Bank8 Region Information Number sectors Bank Bank9 Region Information Number sectors Bank Bank10 Region Information Number sectors Bank Bank11 Region Information Number sectors Bank
Common Flash Interface Version Vendor Specific Extensions
Table
Address (byte mode)
Updated Primary Vendor-Specific Extended Query (Continued)
Data Bank12 Region Information Number sectors Bank Bank13 Region Information Number sectors Bank Bank14 Region Information Number sectors Bank Bank15 Region Information Number sectors Bank Bank16 Region Information Number sectors Bank Bank17 Region Information Number sectors Bank Bank18 Region Information Number sectors Bank Bank19 Region Information Number sectors Bank Bank20 Region Information Number sectors Bank Bank21 Region Information Number sectors Bank Bank22 Region Information Number sectors Bank Bank23 Region Information Number sectors Bank Bank24 Region Information Number sectors Bank Bank25 Region Information Number sectors Bank Bank26 Region Information Number sectors Bank Bank27 Region Information Number sectors Bank Bank28 Region Information Number sectors Bank Bank29 Region Information Number sectors Bank Bank30 Region Information Number sectors Bank Bank31 Region Information Number sectors Bank Bank32 Region Information Number sectors Bank Description
March 2004 Flash Interface Version Vendor Specific Extensions
Conclusion
These changes enable updated Flash driver software recognize make device features.
Common Flash Interface Version Vendor Specific Extensions
Revision Summary
Revision (March 2004)
Initial Release.
Trademarks Notice This document contains FASL confidential information. contents this document copied duplicated form, whole part, without prior written consent from FASL. information this document subject change without notice. Product Company names trademarks registered trademarks their respective owners Copyright 2004 FASL LLC. rights reserved.
March 2004 Flash Interface Version Vendor Specific Extensions

This application note provides overview changes implemented between ve

Top Searches for this datasheet

Other recent searches