參數(shù)資料
型號(hào)： X76F041W-3
英文描述： PASS TM SecureFlash
中文描述： 密碼商標(biāo)SecureFlash
文件頁(yè)數(shù)： 4/21頁(yè)
文件大?。?/td> 107K
代理商： X76F041W-3
X76F041
4
Array Control
The four 1K arrays, are each programmable to different
levels of access and functionality. Each array can be pro-
grammed to require or not require the read/write pass-
words. The functional options are:
Read and Write Access.
Read access with all write operations locked out.
Read access and program only (writing a “1” to a
“0”). If an attempt to change a “0” to a “1” occurs the
X76F041 will reset, issue a “no ACK” and enter the
standby power mode.
No read or write access to the memory. Access only
through use of the configuration password.
Array Map
8 Bit Array Control Register 1
8 Bit Array Control Register 2
Functional Bits
Z
0
1
7002 FRM T02
T
0
0
FUNCTIONALITY
READ AND WRITE UNLIMITED
READ ONLY, WRITE LIMITED
PROGRAM & READ ONLY,
ERASE LIMITED
NO READ OR WRITE, FULLY
LIMITED
0
1
1
1
Addresses 000 07F (hex)
Addresses 080 0FF (hex)
Addresses 100 17F (hex)
Addresses 180 1FF (hex)
First ‘1k’
Second ‘1k’
Third ‘1k’
Fourth ‘1k’
High-order
Addresses
7002 ILL F04A
X2
Y2
Z2
T2
X1
Y1
Z1
T1
SECOND 1K
FIRST 1K
ACCESS
MSB
FUNCTION
ACCESS
FUNCTION
LSB
7002 ILL F05A
X4
Y4
Z4
T4
X3
Y3
Z3
T3
UPPER 1K
THIRD 1K
ACCESS
MSB
FUNCTION
ACCESS
FUNCTION
LSB
7002 ILL F05B
Access Bits
7002 FRM T03
8-Bit Configuration Register
Unauthorized Access Bits (UA1, UA2):
1 0
Access is forbidden if retry register equals the retry
counter (provided that the retry counter is enabled) and
no further access of any kind will be allowed.
0 1, 0 0, 1 1
Only configuration operations are allowed if the retry reg-
ister equals the retry counter (provided that the retry
counter is enabled).
Retry Counter Reset Bit (RCR):
If the retry counter reset bit is a “1” then the retry counter
will be reset following a correct password, provided the
retry counter is enabled.
If the retry counter reset bit is a “0” then the retry counter
will not be reset following a correct password, provided
the retry counter is enabled.
Retry Counter Enable Bit (RCE):
If the Retry counter enable bit is a “1”, then the retry
counter is enabled. An initial comparison between the
retry register and retry counter determines whether the
number of allowed incorrect password attempts has
been reached. If not, the protocol continues and in case
of a wrong password, the retry counter is incremented by
one. If the password is correct then the retry counter will
either be reset or unchanged, depending on the reset bit.
X
Y
READ
PASSWORD
WRITE
PASSWORD
0
0
NOT REQUIRED
NOT REQUIRED
1
0
NOT REQUIRED
REQUIRED
0
1
REQUIRED
NOT REQUIRED
1
1
REQUIRED
REQUIRED
UA1
UA2
1
0
RCR
RCE
0
0
RESERVED
RETRY COUNTER RESET
RESERVED
RESERVED
UNAUTHORIZED ACCESS BIT 2
UNAUTHORIZED ACCESS BIT 1
RETRY COUNTER ENABLE
MSB
LSB
7002 ILL F06
相關(guān)PDF資料
PDF描述
X76F041WE PASS TM SecureFlash
X76F100 1K 128 x 8 Bit
X76F100M8 1K 128 x 8 Bit
X76F100M8-3.0 1K 128 x 8 Bit
X76F100M8I 1K 128 x 8 Bit
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
X76F041WE 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:PASS TM SecureFlash
X76F041WE-3 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:PASS TM SecureFlash
X76F100 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:1K 128 x 8 Bit
X76F100M8 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:1K 128 x 8 Bit
X76F100M8-3.0 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:1K 128 x 8 Bit
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