參數(shù)資料
型號: S-35L32AEFSG
元件分類: 時鐘/數(shù)據(jù)恢復(fù)及定時提取
英文描述: REAL TIME CLOCK, PDSO10
封裝: 0.50 MM PITCH, PLASTIC, SSOP-10
文件頁數(shù): 6/37頁
文件大小: 502K
代理商: S-35L32AEFSG
REAL-TIME CLOCK
S-35L32A
Rev.1.3_00
14
Seiko Instruments Inc.
1.8 Data writing
After a start condition is detected from the outside, the device code and command are received. At
this point, the real-time-data-writing mode or other register-writing mode is entered when the read/write
bit is "0". Data must be entered in the order from LSB of the real-time data writing mode or status
register-writing mode. In real-time data writing, the counter of a calendar and time is reset when the
ACK signal rises following the real-time writing command, and any update operation is disabled. After a
minute data is received, the end of a month is corrected while a second data is imported. Then, the
count-up is started when the ACK signal rises after the second data is received.
(1) Real-time data writing 1
S
T
A
R
T
0 1 1 0
W
R
I
T
E
S
T
O
P
DEVICE
ADDRESS
R
/
W
M
S
B
SDA LINE
0
1 0
A
C
K
L
S
B
A
C
K
A
C
K
0
Command
Real-time data
access 1 command
Year data
L
S
B
M
S
B
L
S
B
M
S
B
Second data
(2) Real-time data writing 2
S
T
A
R
T
0 1 1 0
S
T
O
P
DEVICE
ADDRESS
R
/
W
M
S
B
SDA LINE
0
1 1
A
C
K
L
S
B
A
C
K
A
C
K
0
Command
Real-time data
access 2 command
Hour data
L
S
B
M
S
B
L
S
B
M
S
B
Second data
W
R
I
T
E
(3) Status register writing
S
T
A
R
T
0 1 1 0
DEVICE
ADDRESS
R
/
W
M
S
B
SDA LINE
0
1
A
C
K
L
S
B
A
C
K
0
Command
Status register
access command
Status data
L
S
B
M
S
B
0
S
T
O
P
W
R
I
T
E
Figure 11 Write communication
DISCONTINUED
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