參數(shù)資料
型號: S-35399A03-J8T2G
元件分類: 時鐘/數(shù)據(jù)恢復(fù)及定時提取
英文描述: 1 TIMER(S), REAL TIME CLOCK, PDSO8
封裝: LEAD FREE, SOP-8
文件頁數(shù): 30/53頁
文件大小: 472K
代理商: S-35399A03-J8T2G
2-WIRE REAL-TIME CLOCK
S-35399A03
Rev.2.0_00
Seiko Instruments Inc.
36
(4) INT1 register access and INT2 register access
In Read/Write the INT1 and INT2 registers, data varies depending on the setting of the status register 2. Be sure to
Read/Write after setting the status register 2. When setting the alarm by using the status register 2, these registers
work as 3-byte alarm time data registers, in other statuses, they work as 1-byte registers. When outputting the
user-set frequency, they are the data registers to set up the frequency.
Regarding details of each data, refer to “4. INT1 register and INT2 register” in “ Configuration of Register”.
Caution Users cannot use both functions of alarm 1 interrupt for the
1
INT
pin and
2
INT
pin and the
output of user-set frequency simultaneously.
36
9
1
AC
K
0
1
0
1
0
ST
A
R
T
SCL
SDA
Day of week data
Minute data
B7
B0
B7
B0
*1
R/W
AC
K
*2
ST
OP
ACK
*3
AC
K
*3
I/O mode switching
27
18
Hour data
B7
B0
Code +
command
*1.
0 : INT1 register selected, 1 : INT2 register selected
*2.
Set NO_ACK = 1 in Read.
*3.
Transmit ACK = 0 from the master device to the S-35399A03 in Read.
Figure 42 INT1 Register Access and INT2 Register Access
18
9
1
AC
K
1
0
1
0
ST
A
R
T
I/O mode switching
SCL
SDA
Frequency
setting data
B7
B0
I/O mode switching
R/W
AC
K
*2
ST
OP
*1
0
Code +
command
*1.
0 : INT1 register selected, 1 : INT2 register selected
*2.
Set NO_ACK = 1 in Read.
Figure 43 INT1 Register and INT2 Register (Data Register for output frequency) Access
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