參數(shù)資料
型號(hào): X76F041P
英文描述: PASS TM SecureFlash
中文描述: 密碼商標(biāo)SecureFlash
文件頁(yè)數(shù): 9/21頁(yè)
文件大?。?/td> 107K
代理商: X76F041P
X76F041
9
READ OPERATION
Random Read with Password
Random read with password operations are initiated
with a START command followed by the read command
and the address of the first byte of the block in which data
is to be read:
Block 0 = 000h
Block 1 = 080h
Block 2 = 100h
Block 3 = 180h
This is followed by the eight byte read password
sequence which includes the 10ms wait time and the
password acknowledge polling sequence. If the pass-
word is accepted an “ACK” will be returned followed by
eight bits of “secure read setup” which is to be ignored. At
this point a START is issued followed by the address and
data to be read within the original 1K block. See figure 8.
Once the first byte has been read, another start can be
issued followed by a new 8-bit address. Random reads
are allowed only within the original 1K-bit block. To
access another 1K-bit block, a stop must be issued fol-
lowed by a new command/block address/password
sequence.
Figure 8. Random Read with Password
S
T
A
R
T
S
C M D A
X
A
X
A
X
A
X
A
8
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
A
C
K
READ
PASSWORD 7
A
C
K
A
C
K
A
C
K
A
C
K
READ
PASSWORD 0
SECURE
READ SETUP
A
C
K
S
T
A
R
T
SDA LINE
IF PASSWORD
MATCH THEN
DATA 0
A
C
K
S
T
A
R
T
S
S
7002 ILL F13
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
WAIT
tWC/ACK POLLIN
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
DATA 1
A
C
K
S
T
O
P
S
FIRST BYTE
BLOCK ADDRESS
X X X X X X X X
相關(guān)PDF資料
PDF描述
X76F041P-3 PASS TM SecureFlash
X76F041PE PASS TM SecureFlash
X76F041W PASS TM SecureFlash
X76F041W-3 PASS TM SecureFlash
X76F041WE PASS TM SecureFlash
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
X76F041P-3 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:PASS TM SecureFlash
X76F041PE 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:PASS TM SecureFlash
X76F041PE-3 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:PASS TM SecureFlash
X76F041W 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:PASS TM SecureFlash
X76F041W-3 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:PASS TM SecureFlash