參數(shù)資料
型號(hào): X4C105
元件分類: CPU監(jiān)測(cè)
英文描述: RTC Module With CPU Supervisor
中文描述: 時(shí)鐘模塊CPU監(jiān)控
文件頁數(shù): 9/18頁
文件大?。?/td> 93K
代理商: X4C105
X4C105
9
S
t
o
p
A
C
K
A
C
K
A
C
K
Data
(2)
Slave
Address
Data
(n)
A
C
K
SDA Bus
Signals from
the Slave
Signals from
the Master
1
Data
(n-1)
(n is any integer greater than 1)
Data
(1)
Figure 11. Sequential Read Sequence
After loading the entire Slave Address Byte from the SDA
bus, the device compares the device select bits with the
status of the Device Select pins. Upon a correct
compare, the device outputs an acknowledge on the
SDA line.
Figure 12. Slave Byte
Word Address
The word address is either supplied by the master or
obtained from an internal counter. The internal counter is
undefined on a power up condition.
Write Protect Operations
The WP pin provides write protection. The WP pin
protects the upper half of the array.
Table 1. Write protected areas
1
0
1
0
S2
S1
A8
R/W
WP Pin
LOW
Serial Memory Write Protection
Writes possible to all locations
No writes to 100H-1FFH,
Writes possible to 000H to 0FFH
HIGH
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