參數(shù)資料
型號(hào)： S-35380A-J8T1G
元件分類(lèi)： 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取
英文描述： REAL TIME CLOCK, PDSO8
封裝： SOP-8
文件頁(yè)數(shù)： 5/47頁(yè)
文件大小： 504K
代理商： S-35380A-J8T1G
2-WIRE REAL-TIME CLOCK
Rev.2.0_00
S-35380A
Seiko Instruments Inc.
13
4. INT1 register_1 and INT1 register_2
INT1 register_1 and INT1 register_2 are interrupt setting registers that can be set independently. The
interrupts are output from the INT1 pin and INT2 pin. The function is switched by using status register_2.
(1) Alarm interrupt
Data set in INT1 register_1 and INT1 register_2 is considered as alarm time data. Having the same
configuration as the hour and minute registers of the real-time data register, these registers represent
hours and minutes with BCD codes. When setting these registers, do not set any nonexistent day.
Data to be set must be in accordance with the 12-hour or 24-hour expression that is set in status
register_1.
H8
H4
H2
H1
MSB
LSB
A1mE
m8
m4
m2
m1
MSB
LSB
H20 H10
m10
m20
m40
H8
H4
H2
H1
MSB
LSB
A2mE
m8
m4
m2
m1
MSB
LSB
H20 H10
m10
m20
m40
AM/
PM
A1WE
0
W4
W2
W1
MSB
LSB
0
INT1 register_1
0
W4 W2
W1
MSB
LSB
0
INT1 register_2
A2WE
A1HE
A2HE AM/
PM
Figure 11 INT1 Register_1, INT1 Register_2 (Alarm Time Data)
In INT1 register_1, A1WE, A1HE, and A1mE are respectively in the MSB of each byte. By setting
each bit to “1”, the setting of the day of week data, hour data, and minute data in the corresponding
byte becomes valid. A2WE, A2HE, and A2mE of INT1 register_2 are the same.
(2) Selected frequency steady interrupt
Data set in INT1 register_1 and INT1 register_2 is considered as frequency duty data. By setting each
bit from B4 to B0 of the register to “1”, the frequency corresponding to each bit is selected in an
ANDed form. The SC bits configure a 3-bit SRAM type register that can be set freely by users. These
bits can be read and written within the operating voltage range (1.3 to 5.5 V). There is no impact on
the duty function.
B7
LSB
R/W
16 Hz
MSB
B6
B5
B4
B3
B2
B1
B0
4 Hz
8 Hz
SC
R/W
R/W: Read/write-enabled
R/W
2 Hz
1 Hz
SC
Figure 12 INT1 Register_1 and INT1 Register_2 (Frequency Duty Data)
DISCONTINUED
PRODUCT
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S-35390A-J8T1 制造商:Seiko Instruments Inc (SII) 功能描述:
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