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): 5/37頁
文件大?。?/td> 502K
代理商: S-35L32AEFSG
REAL-TIME CLOCK
Rev.1.3_00
S-35L32A
Seiko Instruments Inc.
13
1.7 Data reading
After a start condition is detected from the outside, the device code and command are received. At
this point, the real-time reading mode or status register reading mode is entered when the read/write bit
is "1". In either the real-time reading mode or status register reading mode, data are output in the order
from LSB.
(1) Real-time data reading 1
Command
S
T
A
R
T
0 1 1 0
R
E
A
D
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
1
Real-time data
access 1 command
Year data
L
S
B
M
S
B
L
S
B
M
S
B
Second data
A
C
K
NO ACK from
Master Device
(2) Real-time data reading 2
S
T
A
R
T
0 1 1 0
R
E
A
D
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
1
Command
Real-time data
access 2 command
Hour data
L
S
B
M
S
B
L
S
B
M
S
B
Second data
A
C
K
NO ACK from
Master Device
(3) Status register reading
S
T
A
R
T
0 1 1 0
R
E
A
D
DEVICE
ADDRESS
R
/
W
M
S
B
SDA LINE
0
1
A
C
K
L
S
B
1
Command
Status register
access command
Status data
L
S
B
M
S
B
0
S
T
O
P
NO ACK from
Master Device
Figure 10 Read communication
Caution
ACK Upside:
Generate from the master device
ACK Downside:
Generate from the S-35L32A
DISCONTINUED
PRODUCT
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