Epson RX4111CE - Page 52

14. How to use

RX4111CE Jump to Top / Bottom
ETM62E-02 Seiko Epson Corporation 51
2) I
Next procession
Initialization
Bank1, RegFh
Set AIE,TIE, UIE bit to 0"to prevent unprepared interruption output.
Set Time and Date
Bank1, Reg0h6h
Set the time and date.
Setting the present time concerned, please refer to item of [Clock and
calendar writing].
Setting the Alarm function
Set the Alarm interrupt function.
When the alarm interrupt function is not being used, the Alarm registers
can be used as a RAM register. In such cases, be sure to write "0" to the
AIE bit.
Setting the Timer function
Set the Wakeup Timer function.
When the fixed-cycle timer function is not being used, the Timer Counter
register can be used as a RAM register. In such cases,
stop the fixed-cycle timer function by writing "0" to the TE and TIE bits.
When initialization is finished, be sure to set STOP bit to 0.
Bank1, RegDh
Set TE bit to 0.
Set FSEL1,0 bitoptionally.
 Clear various flags to "0".
 VLF and XST retain the state of "1" even if "0" is cleared until oscillation starts.
Bank1, RegEh
Bank3, Reg2h
 Set the Battery backup switchover function.
Figure 40 Flow2