Epson RX8900SA/CE - 8.12. Flow Chart; 1) An Example of the Initialization

RX8900 SA / CE
Page - 33 ETM45E-01
8.12. Flow chart
The following flow-chart is one instance.
Mention for easy understanding takes precedence over others; therefore there are some inefficient cases for the
actual processing. If you wish to take more efficient process, perform some processes at the same time or try to
confirm and adjust some part where is no hindered from transposing of operation procedure. (Unnecessary
processing may be included in mentioned items according to conditions to use.
To get movement according to your expectation, please surely adjust according to conditions to use
(use environment).
1) An example of the initialization
Ex.1 Initialize
Next processing
Initialization
Set the present time.
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 fixed-cycle 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-c
y
cle timer function b
y
writin
g
"0" to the TE and TIE bits.

Set TE bit to “0”.
Set FSEL1,0 bitoptionally.
Setting the Update function
Set the Update interrupt function.


Reg0D[h]
SET TEST bit to “0”.
Clear VDET, VLF bit to “0”.
Reg0D[h]
Set

AIE,

TIE, UIE bit to “0

"

to prevent unprepared interruption output.
Reg0F[h]
Setting the present time
Reg0[h]6[h]
Temperature compensation
function
 Set the interval of a temperature compensation operation

