RC28F128J3F75 View Datasheet(PDF) - Micron Technology
Part Name
Description
MFG CO.
'RC28F128J3F75' PDF : 66 Pages View PDF
Numonyx® Embedded Flash Memory (J3 65 nm) Single Bit per Cell (SBC)
Table 35: Summary of Query Structure Output as a Function of Device and Mode
Device
Type/
Mode
Query start location in
maximum device bus
width addresses
Query data with maximum device
bus width addressing
Hex
Offset
Hex Code
ASCII
Value
Query data with byte addressing
Hex
Offset
Hex Code
ASCII
Value
x8 mode
N/A(1)
N/A(1)
21:
51
“Q”
22:
52
“R”
Note:
1.
The system must drive the lowest order addresses to access all the device's array data when the device is configured in
x8 mode. Therefore, word addressing, where these lower addresses are not toggled by the system, is "Not Applicable"
for x8-configured devices.
Table 36: Example of Query Structure Output of a x16- and x8-Capable Device
Word Addressing
Byte Addressing
Offset
Hex Code
Value
Offset
Hex Code
Value
A15–A0
0010h
0011h
0012h
0013h
0014h
0015h
0016h
0017h
0018h
...
0051
0052
0059
P_IDLO
P_IDHI
PLO
PHI
A_IDLO
A_IDHI
...
D15–D0
“Q”
“R”
“Y”
PrVendor
ID #
PrVendor
TblAdr
AltVendor
ID #
...
A7–A0
20h
21h
22h
23h
24h
25h
26h
27h
28h
...
51
51
52
52
59
59
P_IDLO
P_IDLO
P_IDHI
...
D7–D0
“Q”
“Q”
“R”
“R”
“Y”
“Y”
PrVendor
PrVendor
ID #
...
13.2
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. See AP-646 Common Flash Interface (CFI) and
Command Sets (order number 292204) for a full description of CFI.
The following sections describe the Query structure sub-sections in detail.
Table 37: Query Structure
Offset
00h
01h
(BA+2)h(2)
04-0Fh
10h
1Bh
Sub-Section Name
Identification Code
Identification Code
Block Status Register
Reserved
CFI Query Identification String
System Interface Information
Description
Manufacturer Code
Device Code
Block-Specific Information
Reserved for Vendor-Specific Information
Reserved for Vendor-Specific Information
Command Set ID and Vendor Data Offset
Notes
1
1
1,2
1
1
1
Datasheet
58
Jan 2011
208032-03
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