Epson RX801SJ Applications Manual page 32

RX8010 SJ
Ex.2 This example is use only for clock functions.
START
Setting the reserved bits
Reg − 17[h], 30[h]∼ 32[h]
Reg − 1D[h]
Reg − 1E[h]
Reg − 1F[h]
Setting the present time
( Reg − 10[h] ∼ 16[h] )
Setting the Alarm function
( Reg −18[h] ∼ 1A[h] )
Setting the Timer function
( Reg − 1B[h] ∼ 1C[h] )
Stop cancellation
( Reg − 1F[h] )
Start clock
3) The setting of a clock and calendar
START
STOP ← " 1 "
Write time
STOP ← " 0 "
Next process
• Reserved bits have to write in specified fixed value in the case
of initialization by all means.
• Write 04[h]
• Write 00[h]
• Write 40[h]
Set STOP bit to "1" to prevent timer update in time setting.
•Set the present time.
• The alarm function stops by initialization of Reg 1F[h].
Reg - 18h to 1Ah can be used as a RAM register.
•The Timer function stops by initialization of Reg - 1E[h] and Reg – 1F[h].
Reg – 1Bh to 1Ch can be used as a RAM register.
• Write 00[h]
Cancel STOP bit to "0" and start (restart) clock.
∗ When initialization is finished, be sure to set STOP bit to "0".
• Set STOP bit to "1" to prevent timer update in time setting.
• Write information of [ year / month /date [day of the week] hour:
minute: second ] which is necessary to set (or reset).
In case of initialization, please initialize all data.
• Cancel STOP bit to "0" and start (restart) timer movement.
Timer is started when set STOP bit to "0".
∗ It is able to set time even if not combined use of STOP bit.
Please note that [ clock is started at the time of writing [second ] ] in
case STOP bit is not used.
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