參數(shù)資料
型號(hào)： S-35L32AEFSG
元件分類： 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取
英文描述： REAL TIME CLOCK, PDSO10
封裝： 0.50 MM PITCH, PLASTIC, SSOP-10
文件頁數(shù)： 15/37頁
文件大小： 502K
代理商： S-35L32AEFSG
REAL-TIME CLOCK
S-35L32A
Rev.1.3_00
22
Seiko Instruments Inc.
5. Interrupt
There are different five output formats from the INT1 and INT2 pin, which are chosen by the INTxAE,
INTxME and INTxFE bits of the status register (x: 1 or 2).
(1) Alarm interrupt output
Alarm interrupt is enabled by setting hour and minute data to the INT1 register (or INT2 register)
and turning the status register's INT1AE to "1" and INT1ME and INT1FE to "0" (or INT2AE to "1" and
INT2ME and INT2FE to "0"). When set hour data is met, “K” is output from the INT1 pin (or INT2 pin).
Since the output is held, rewrite INT1AE (or INT2AE) of the status register to "0" through serial
communication to turn the output to high (OFF state).
The coincidence signal is set when minute changes from 59 seconds to 0 second and outputs the
“L” signal from the INT1 pin (or INT2 pin). When you perform disable or enable communication within
the coincidence period (1 minute), pay attention that INT1 pin (or INT2 pin) remains “H” level (OFF
state).
(2) Selected frequency steady interrupt output
When you set frequency/duty data to the INT1 register (or INT2 register) and turn the status
register's INT1ME to "0" and INT1FE to "1" (or INT2ME to "0" and INT2FE to "1"), clock set at the INT1
register (or INT2 register) is output from the INT1 pin (or INT2 pin).
(3) Per-minute edge interrupt output
When a first minute carry is performed after the status register's INT1ME is set with "1" and INT1FE
with "0" (or INT2ME with "1" and INT2FE with "0"), “L” is output from the INT1 pin (or INT2 pin). Since
the output is held, rewrite INT1AE, INT1ME and INT1FE (or INT2AE, INT1ME and INT2FE) of the
status register to "0" through serial communication to turn the output to high (OFF state). When you
perform disable or enable communication while the minute carry processing signal is being retained
(for 123
s), "L" signal is output from the INT1 pin (or INT2 pin) again.
(4) Per-minute steady interrupt output
When a first minute carry is performed after the status register's INT1ME and INT1FE are set with
"1" (or INT2ME and INT2FE with "1"), clock is output from the INT1 pin (or INT2 pin) with a period of
one minute (50% duty).
When you perform disable or enable communication while the INT1 pin (or INT2 pin) is at "L," "L"
signal is output from the INT1 pin (or INT2 pin) again.
Caution 1. If changing an output mode, give care to the state of the INT1and INT2 registers and
output.
2. If per-minute-edge-interrupt-output or per-minute-steady-interrupt-output is chosen, the
INT1 and INT2 registers have no meaning.
DISCONTINUED
PRODUCT
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