tc83230-0021 TOSHIBA Semiconductor CORPORATION, tc83230-0021 Datasheet - Page 13

• Manufacturer Part Number: tc83230-0021
• Description: Single-chip Cmos Lsi For Calculators With Printers
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Explanation of Functions
(1)
(2)
Auto power-off function
HOLD state. The [ON] key is used to cancel HOLD mode or to drive higher frequency (4 MHz) mode.
When power is turned on by the [ON] key, cancels all arithmetic instructions and errors, stores states
before power off in memory and GT memory, and clears all other contents in the RAM. If any key is
pressed within 10 minutes, the automatic power-off timer is cleared and resumes counting. Auto
power-off functions even though a lock key is kept being pressed (under off-chatter).
Clock function
hours and minutes blink. In date display, a hyphen “-” between month and day does not blink.
1)
2)
3)
4)
When the [TMR] lock key is on and there is no key input for 10 minutes, automatically enters
Time is input and displayed using a 24-hour clock. In clock display mode, a hyphen “-” between
To set or change the time or date, use the [TIME] key to enter clock/date setting mode.
CLOCK function is only available when [ CLOCK ] lock key is off.
How to set or change time and date
a)
b)
c)
d)
e)
Clock/date input error
setting error occurs. When an error occurs, the cursor returns to the beginning of the position
where the error occurred and the system stands by for fresh input. The error mark is not
displayed on LCD.
Clear or mode key operation during clock/date setting
mode. While clock function is operative, the [OFF] or auto power-off function cannot be used.
Initial values at reset
01 01-01 (YY MM/DD), 00: 00: 00 (HH: MM: SS)
If a value which does not exist is specified for the month, day, hour, or minute, a clock/date
Pressing the [C] or [C/CE] key cancels clock/date setting mode and returns to clock display
Enter clock display mode using the [TIME] key. (the current time is displayed.)
Press the [TM/S] key to set to clock/date setting mode. (year and data setting when the
[TM/S] key is pressed the first time.) At that time, the cursor blinks at the year. In
clock/date setting mode, the display is not zero-suppressed.
Move the cursor using the cursor keys to the position where the data are to be changed.
Input the year, month, day, hour, or minute to be changed using numeric data keys. After
a numeral is input, the cursor automatically moves to the next position.
After inputting the year and date, pressing the [TM/S] key a second time ends date setting
and clock setting mode is entered. Input numerals for time the same way as year or date.
Pressing the [TM/S] key a third time sets the hours and minutes, then returns to clock
display mode.
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TC83230-0021/JTC83230-0021S
2003-03-24