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28F128 Datasheet(PDF) 20 Page - Intel Corporation

Part # 28F128
Description  3 Volt Intel StrataFlash Memory
PDF  58 Pages
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Manufacturer  INTEL [Intel Corporation]
Direct Link  http://www.intel.com
Logo INTEL - Intel Corporation

28F128 Datasheet(HTML) 20 Page - Intel Corporation

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28F128J3A, 28F640J3A, 28F320J3A
14
Preliminary
In all of the following tables, addresses and data are represented in hexadecimal notation, so the
“h” suffix has been dropped. In addition, since the upper byte of word-wide devices is always
“00h,” the leading “00” has been dropped from the table notation and only the lower byte value is
shown. Any x16 device outputs can be assumed to have 00h on the upper byte in this mode.
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.
4.2.2
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 5.
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
Query data with byte
addressing
Hex
Offset
Hex
Code
ASCII
Value
Hex
Offset
Hex
Code
ASCII
Value
x16 device
10h
10:
0051
“Q”
20:
51
“Q”
x16 mode
11:
0052
“R”
21:
00
“Null”
12:
0059
“Y”
22:
52
“R”
x16 device
20:
51
“Q”
x8 mode
N/A(1)
N/A(1)
21:
51
“Q”
22:
52
“R”
Table 6.
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
D15–D0
A7–A0
D7–D0
0010h
0051
“Q”
20h
51
“Q”
0011h
0052
“R”
21h
51
“Q”
0012h
0059
“Y”
22h
52
“R”
0013h
P_IDLO
PrVendor
23h
52
“R”
0014h
P_IDHI
ID #
24h
59
“Y”
0015h
PLO
PrVendor
25h
59
“Y”
0016h
PHI
TblAdr
26h
P_IDLO
PrVendor
0017h
A_IDLO
AltVendor
27h
P_IDLO
ID #
0018h
A_IDHI
ID #
28h
P_IDHI
ID #
...
...
...
...
...
...



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