Epson RX4111CE - Wake-Up Timer Start Timing; Interruption Period of Wake-Up Timer; Table 27 Wake-Up Timer Interrupt Cycles

14. How to use

RX4111CE Jump to Top / Bottom
ETM62E-02 Seiko Epson Corporation 30
14.2.2. Wake-up Timer Start Timing
The timer source clock selects bits (TSEL1, TSEL0) are also fixed at the rising edge of CLK.
The timer countdown starts after the data is fixed at the rising edge of CLK of the 8th data bit (D0).
TSEL0
TE
TSEL2
1
TSEL1
Count down
DI
CLK
Internal timer
WADA
A
/ INT pin
Figure 22 Wake-up Timer Start Sequence
14.2.3. Interruption period of wake-up Timer.
The combination of the source clock settings and Wake-up timer countdown value sets interrupt interval, as shown in the
following examples.
Table 27 Wake-up Timer Interrupt Cycles
Timer Counter
setting
116777216
Source clock
4096 Hz
0=0,0
64 Hz
0=0,1
1Hz
0=1,0
1/60Hz
0=1,0
0




1
244.14 s
15.625 ms
1 s
1 min










410
100.10 ms
6.406 s
410 s
410 min










3840
0.9375 s
60.000 s
3840 s
3840 min










4096
1.0000 s
64.000 s
4096 s
4096 min










16777216
1.13 h
72.81 h
4660 h
31.9 Year
When the all counter value is set to 0b, the timer will not work.