14. How to use
RX4111CE
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ETM62E-02
Seiko Epson Corporation
53
4)
The reading of the clock and calendar
Next process
Reading of the clock
Read clock
Please complete access within 0.95 seconds
The STOP bit holds "0".
(It causes the clock delay to set STOP bit to
“1”)
At the time of a communication start, the Clock & Calendar data are fixed
(hold the carry operation), and it is automatically revised at the time of the
communication end.
The access to a clock calendar recommends to have access to continuation
by a auto increment function.
Figure 43 Flow5
5)
Setting example of the Wake-up timer interrupt function
Next process
Bank2 - 1Ah
1Ch
Set initial value of down counter.
Start count
Set TE bit to "1" to start timer interrupt function.
When start timers interrupt function, please surely set/reset
2) initial value of down counter in advance.
Fh
Set the / INT output at event occurrence by setting the TIE bit.
1 Countdown is suspended with TSTP,
"
0
"
"
1
"
and countdown is
performed again with TSTP,
"
1
"
"
0
"
2 When you want to restart from a pre-set value, please set a TE bit to
“1”
again after setting a TE bit to
“0”.
Timer setting
Clear TE bit to
“0” to stop timer-interrupt function.
The countdown period is fixed by the combination of the TSEL1, TSEL0 bit.
Clear TF bit to
“0” to cancel last timer interrupt output (/INT output).
Bank1 - Dh
Eh
Figure 44 Flow6
