參數(shù)資料
型號: S-35390A-J8T1G
元件分類: 時鐘/數(shù)據(jù)恢復及定時提取
英文描述: 1 TIMER(S), REAL TIME CLOCK, PDSO8
封裝: LEAD FREE, SOP-8
文件頁數(shù): 15/56頁
文件大小: 529K
代理商: S-35390A-J8T1G
2-WIRE REAL-TIME CLOCK
S-35390A
Rev.3.0_00
Seiko Instruments Inc.
22
Alarm setting of “H (hour)”
mx
Comparator
Hx
Wx
Dx
Mx
Yx
OFF
*1
INT1AE/INT2AE
INT1 pin/INT2 pin
Alarm interrupt
Second
Real-time data
Minute
INT1 register
INT2 register
Year
Hour
Day of
the week
Day
Month
Change by program
Alarm time matches
Period when alarm time matches
Change by program
Real-time data
Alarm time
matches*2
01 s
59 s
H h 00 m 00 s
H h 59 m 59 s
H h 01 m 00 s
(H + 1) h 00 m 00 s
(H
1) h 59 m 59 s
Change by program
INTx register alarm enable flag
AxHE = AxmE = AxWE = "1"
Status register 2 setting
INT1 pin output mode
32kE = 0, INT1ME = INT1FE = 0
INT2 pin output mode
INT2ME = INT2FE = 0
*1. If users clear INT1AE/INT2AE once; “L” is not output from the
1
INT
/
2
INT
pin by setting INT1AE/INT2AE enable
again, within a period when the alarm time matches real-time data.
*2. If turning the alarm output on by changing the program, within the period when the alarm time matches real-time data,
“L” is output again from the
1
INT /
2
INT
pin when the minute is counted up.
Figure 25
Alarm Interrupt Output Timing (2/2)
2.
Output of user-set frequency
The output of user-set frequency is the function to output the frequency which is selected by using data, from the
1
INT
/
2
INT
pin, in the AND-form. Set up the data of frequency in the INT1/INT2 register.
Refer to “4. INT1 register and INT2 register” in “
Configuration of Register”.
OFF
INT1FE/INT2FE
INT1 pin/INT2 pin
Change by program
Free-run output starts
Status register 2 setting
INT1 pin output mode
32kE = 0, INT1AE = Don’t care (0 or 1), INT1ME = 0
INT2 pin output mode
INT2AE = Don’t care (0 or 1), INT2ME = 0
Figure 26
Output Timing of User-set Frequency
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