RV5C386A-E2 Просмотр технического описания (PDF) - RICOH Co.,Ltd.
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RV5C386A-E2 Datasheet PDF : 42 Pages
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PRELIMINARY
RV5C386A
13.2.5. Calendar Counter (Address 4-6h)
• Day-of-month Counter (Address 4h)
D7
D6
D5
D4
D3
D2
D1
D0
-
-
D20 D10
D8
D4
D2
D1 (For Writing)
0
0
D20 D10
D8
D4
D2
D1 (For Reading)
0
0
Indefinite Indefinite Indefinite Indefinite Indefinite Indefinite Default Settings *)
• Month Counter + Century Bit (Address 5h)
D7
D6
D5
D4
D3
D2
D1
D0
/19⋅20
-
-
MO10 MO8 MO4 MO2 MO1 (For Writing)
/19⋅20
0
0
MO10 MO8 MO4 MO2 MO1 (For Reading)
Indefinite
0
0
Indefinite Indefinite Indefinite Indefinite Indefinite Default Settings *)
• Year Counter (Address 6h)
D7
D6
D5
D4
D3
D2
D1
D0
Y80
Y40 Y20 Y10
Y8
Y4
Y2
Y1 (For Writing)
Y80
Y40 Y20 Y10
Y8
Y4
Y2
Y1 (For Reading)
Indefinite Indefinite Indefinite Indefinite Indefinite Indefinite Indefinite Indefinite Default Settings *)
*) Default settings: Default value means read/written values when the XSTP bit is set to “1” due to power-on
from 0 volts or supply voltage drop.
* The calendar counters are configured to display the calendar digits in BCD format by using the automatic
calendar function as follows:
The day-of-month digits (D20 to D1) range from 1 to 31 for January, March, May, July, August, October, and
December; from 1 to 30 for April, June, September, and November; from 1 to 29 for February in leap years;
from 1 to 28 for February in ordinary years. The day-of-month digits are carried to the month digits in
reversion from the last day of the month to 1. The month digits (MO10 to MO1) range from 1 to 12 and are
carried to the year digits in reversion from 12 to 1.
The year digits (Y80 to Y1) range from 00 to 99 (00, 04, 08, …, 92, and 96 in leap years) and are carried to the
/19⋅20 digits in reversion from 99 to 00.
The /19⋅20 digits cycle between 0 and 1 in reversion from 99 to 00 in the year digits.
* Any carry from lower digits with the writing of non-existent calendar data may cause the calendar counters to
malfunction. Therefore, such incorrect writing should be replaced with the writing of existent calendar data.
13.2.6. Oscillation Adjustment Register (Address 7h)
D7
D6
D5
D4
D3
D2
D1
D0
-
F6
F5
F4
F3
F2
F1
F0 (For Writing)
0
F6
F5
F4
F3
F2
F1
F0 (For Reading)
0
0
0
0
0
0
0
0 Default Settings *)
*) Default settings: Default value means read/written values when the XSTP bit is set to “1” due to power-on
from 0 volts or supply voltage drop.
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