參數(shù)資料
型號: X46402V8E-2.9
元件分類: CPU監(jiān)測
英文描述: RTC Module With CPU Supervisor
中文描述: 時鐘模塊CPU監(jiān)控
文件頁數(shù): 14/23頁
文件大小: 102K
代理商: X46402V8E-2.9
X46402
Preliminary Information
14
Figure 15. Non-Password Protected Random Read
Figure 16. Non-Password Protected Sequential Read
Figure 17. Change Passwords
S
A
S
A
A
A
A
A
A
A
A
Data 0
S
S
S
COMMAND
A
S
SDA
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Data 0
No-Password
Data X
A
S
S
COMMAND
A
S
SDA
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Data 0
S
No-Password
S
COMMAND
A
A
A
A
Old
Password
7
Old
Password
0
S
SDA
A
A
A
New
Password
7
Password
0
A
A
A
New
Password
7
New
Password
0
A
S
S
If ACK, then
Password Matches
A
Two bytes of “0”
Wait t
WC
OR
Repeated
S
ACK POLLING
COMMAND
A
S
ACK Polling
Command
N
If immediate ACK,
then New Password error
Data ACK
Polling
If immediate NACK,
followed by ACK after ~5ms
then New Password OK
*
*
ACK for correct password, No ACK for incorrect password
New
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