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參數(shù)資料
| 型號： | INTEL82802AB |
| 廠商： | Intel Corp. |
| 英文描述： | Firmware Hub (FWH) |
| 中文描述： | 固件集線器（固件樞紐） |
| 文件頁數(shù)： | 48/53頁 |
| 文件大?。?/td> | 471K |
| 代理商： | INTEL82802AB |
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Intel
82802AB/AC Firmware Hub
R
48
Datasheet
6.2.4.
Read Identifier Codes Operation
The read identifier codes operation outputs the manufacturer and device codes (see Table 4). Using the
manufacturer and device codes, automated test equipment (ATE) or PROM programmer software can
confirm the proper device ID.
6.2.5.
Write Operation
The CUI does not occupy a specific addressable memory location. It is written to when WE# is active
and OE# = V
IH
. The address previously captured by R/C# transitions and the data needed to execute a
command are latched on the WE# rising edge.
Table 21.
Bus Operations
Mode
Notes
RST#
OE#
WE#
Address
V
PP
DQ[0:7]
Read
1,2,6
V
IH
V
IL
V
IH
X
X
D
OUT
Output Disable
6
V
IH
V
IH
V
IH
X
X
High Z
Read Identifier Codes
3,6
V
IH
V
IL
V
IH
Note 3
X
Note 3
Write
4,5,6
V
IH
V
IH
V
IL
X
X
D
IN
Note:
1. When V
PP
≤
V
PPLK
, the memory contents can be read, but not altered.
2. X can be V
IL
or V
IH
for the control and address input pins and V
PPLK
or V
PPH1
/2
for the V
PP
supply
pin. See the DC characteristics for the V
PPLK
and V
PPH1
/2
voltages.
3. See Table 4 for the read identifier code data and addresses.
4. Command writes involving block erase or program are reliably executed when V
PP
= V
PPH1
/2
and
V
CC
= V
CC
± 0.3 V.
5. Refer to Table 2 for the valid D
IN
during a write operation.
6. V
IH
and V
IL
refer to the DC Characteristics associated flash memory output buffers:
V
IL
min = -0.5V, V
IL
max = 0.8V and V
IH
min = 2.0V, V
IH
max = V
CC
+ 0.5V.
6.3.
Command Definitions
Flash core programming commands in A/A Mux mode are identical to commands for the FWH mode.
Refer to Section 4 of this document.
6.4.
Electrical Characteristics in A/A Mux Mode
Certain specifications differ from the previous sections, when programming in the A/A Mux mode. The
following subsections provide this data. Any information not provided here is not specific to the A/A
Mux mode. Refer to Section 5 of this document and use the Intel FWH mode specifications.
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