參數(shù)資料
型號： GE28F640W30T70
英文描述： EEPROM|FLASH|4MX16|CMOS|BGA|56PIN|PLASTIC
中文描述： 的EEPROM | FLASH動(dòng)畫| 4MX16 |的CMOS | BGA封裝| 56PIN |塑料
文件頁數(shù)： 81/91頁
文件大?。?/td> 994K
代理商： GE28F640W30T70
1.8 Volt Intel
Wireless Flash Memory with 3 Volt I/O
Datasheet
81
B.2
Query Structure Overview
The Query command causes the flash component to display the Common Flash Interface (CFI)
Query structure or “database.” The structure sub-sections and address locations are summarized
below.
Table 28. Query Structure
NOTES:
1. Refer to the Query Structure Output section and offset 28h for the detailed definition of offset address as a
function of device bus width and mode.
2. BA = Block Address beginning location (i.e., 08000h is block 1’s beginning location when the block size is
32K-word).
3. Offset 15 defines “P” which points to the Primary Intel-specific Extended Query Table.
B.3
Block Status Register
The Block Status Register indicates whether an erase operation completed successfully or whether
a given block is locked or can be accessed for flash program/erase operations.
Block Erase Status (BSR.1) allows system software to determine the success of the last block erase
operation. BSR.1 can be used just after power-up to verify that the VCC supply was not
accidentally removed during an erase operation.
Table 29. Block Status Register
NOTES:
1. BA = Block Address beginning location (i.e., 08000h is block 1’s beginning location when the block size is
32K-word).
B.4
CFI Query Identification String
The Identification String provides verification that the component supports the Common Flash
Interface specification. It also indicates the specification version and supported vendor-specified
command set(s).
Offset
00000h
00001h
(BA+2)h
(2)
Block Status register
00004-Fh Reserved
00010h
CFI query identification string
0001Bh
System interface information
00027h
Device geometry definition
Primary Intel-specific Extended Query Tableto the Primary Vendor Algorithm
Sub-Section Name
Description
(1)
Manufacturer Code
Device Code
Block-specific information
Reserved for vendor-specific information
Command set ID and vendor data offset
Device timing & voltage information
Flash device layout
P
(3)
Offset
(BA+2)h
(1)
Length
1
Description
Add.
BA+2
BA+2 (bit 0): 0 or 1
Value
--00 or --01
Block Lock Status Register
BSR.0 Block lock status
0 = Unlocked
1 = Locked
BSR.1 Block lock-down status
0 = Not locked down
1 = Locked down
BA+2 (bit 1): 0 or 1
BSR 2–7: Reserved for future use
BA+2
(bit 2–7): 0
相關(guān)PDF資料
PDF描述
GE28F640W30T85 EEPROM|FLASH|4MX16|CMOS|BGA|56PIN|PLASTIC
GF4435 TRANSISTOR | MOSFET | P-CHANNEL | 30V V(BR)DSS | 8A I(D) | SO
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