Setting The Fixed-Period Pulse Output Mode And Fixed-Period Interrupt Mode; Resetting The Fixed-Period Pulse Output Mode And Fixed-Period Interrupt Mode - Epson RTC-72421 A Applications Manual

RTC - 72421 / 72423

4. Setting the fixed-period pulse output mode and fixed-period interrupt mode

Mode
Fixed-period pulse output mode
Fixed-period interrupt mode
Fixed-period pulse output
inhibited

5. Resetting the fixed-period pulse output mode and fixed-period interrupt mode

Mode
Fixed-period pulse output mode
MASK=0
ITRPT/STND=0
Fixed-period interrupt mode
MASK=0
ITRPT/STND=1
MASK ITRPT/STND ITRPT/STND
0 0 Set to 1 when
active
0 1
1 0 or 1 "0"
IRQ FLAG
write 0
No write
write 0
No write
Page - 8
STD.P pin
Set low when t1 bit
active
t0 bit
Open-circuit Output period
IRQ FLAG
Reset immediately after the write
("1" "0")
Automatically returned by the set period
("1" "0")
Reset immediately after write
("1" "0")
The interrupt request continues, with no reset. Subsequent interrupt are ignored.
Setting of fixed-period output timing
0 0 1
0 1 0
1/64 s 1 s 1 min. 1 hour
STD.P pin
Reset immediately after the write
("L" "OPEN")
Automatically returned by the set period
("L" "OPEN")
Reset immediately after the write
("L" "OPEN")
MQ - 162 - 03
1
1