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参数资料
| 型号： | YWW7640AF |
| 厂商： | IC MICROSYSTEMS Sdn. Bhd. |
| 英文描述： | Secure SerialFlash |
| 中文描述： | 安全SerialFlash |
| 文件页数： | 11/14页 |
| 文件大小： | 333K |
| 代理商： | YWW7640AF |
X76F400
Characteristics subject to change without notice.
6 of 14
REV 1.0 7/5/00
www.icmic.com
Figure 4. Sector Write Sequence (Password Required)
Figure 5. Acknowledge Polling
Figure 6. Sector Read Sequence (Password Required)
P
Write
Password
7
Write
Password
0
S
SDA
Wait tWC OR
ACK
Password
Command
Password ACK
S
Command
If ACK, then
Password Matches
Command
Host
Commands
Host
Commands
X76F400
Response
X76F400
Response
Wait tWC Data
ACK Polling
8
th CLK of
8
th
Pwd. Byte
‘ACK’
CLK
8
th
CLK
‘ACK’
CLK
‘ACK’
START
Condition
8
th Bit
ACK or
No ACK
SCL
SDA
Data n
P
Read
Password
7
Read
Password
0
Data 0
S
SDA
Wait tWC OR
ACK
Password
Command
Password ACK
S
Command
If ACK, then
Password Matches
Command
Host
Commands
Host
Commands
X76F400
Response
X76F400
Response
A
C
K
S
T
A
R
T
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
S
T
A
R
T
A
C
K
N
o
-A
C
K
S
T
O
P
A
C
K
A
C
K
A
C
K
A
C
K
S
T
A
R
T
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
S
T
A
R
T
A
C
K
N
o
-A
C
K
S
T
O
P
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|---|---|
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