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參數(shù)資料
| 型號： | R2025S |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | XO, clock |
| 英文描述： | High precision I2C-Bus Real-Time Clock Module |
| 中文描述： | REAL TIME CLOCK, PDSO14 |
| 封裝： | 10.10 X 7.40 MM, 3.10 MM HEIGHT, SOP-14 |
| 文件頁數(shù)： | 11/47頁 |
| 文件大?。?/td> | 524K |
| 代理商： | R2025S |
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R2025S/D
11
Register Settings
Control Register 1 (ADDRESS Eh)
D7
D6
WALE
DALE
WALE
DALE
0
0
*) Default settings: Default value means read / written values when the PON bit is set to “1” due to VDD
power-on from 0 volts.
(1) WALE, DALE
Alarm_W Enable Bit, Alarm_D Enable Bit
WALE,DALE
0
Disabling the alarm interrupt circuit (under the control of the settings
of the Alarm_W registers and the Alarm_D registers).
1
Enabling the alarm interrupt circuit (under the control of the settings
of the Alarm_W registers and the Alarm_D registers)
(2) /12
24
/12-24-hour Mode Selection Bit
/12
24
0
Selecting the 12-hour mode with a.m. and p.m. indications.
1
Selecting the 24-hour mode
Setting the /12
24 bit to 0 and 1 specifies the 12-hour mode and the 24-hour mode, respectively.
24-hour mode
12-hour mode
00
12 (AM12)
01
01 (AM 1)
02
02 (AM 2)
03
03 (AM 3)
04
04 (AM 4)
05
05 (AM 5)
06
06 (AM 6)
07
07 (AM 7)
08
08 (AM 8)
09
09 (AM 9)
10
10 (AM10)
11
11 (AM11)
Setting the /12
24 bit should precede writing time data
(3) /CLEN2
32-kHz Clock Output Bit2
/CLEN2
0
Enabling the 32-kHz clock output
1
Disabling the 32-kHz clock output
Setting the /CLEN2 bit or the /CLEN1 bit (D3 in the control register 2) to 0 specifies generating clock pulses
with the oscillation frequency of the 32.768-kHz crystal oscillator for output from the 32KOUT pin.
Conversely, setting both the /CLEN1 and the /CLEN2 bit to 1 specifies disabling (“L”) such output.
(4) TEST
Test Bit
TEST
0
Normal operation mode.
1
Test mode.
The TEST bit is used only for testing in the factory and should normally be set to 0.
D5
/12
24
/12
24
0
D4
D3
TEST
TEST
0
D2
CT2
CT2
0
D1
CT1
CT1
0
D0
CT0
CT0
0
/CLEN2
/CLEN2
0
(For Writing)
(For Reading)
Default Settings *)
Description
(Default)
Description
(Default)
24-hour mode
12
13
14
15
16
17
18
19
20
21
22
23
12-hour mode
32 (PM12)
21 (PM 1)
22 (PM 2)
23 (PM 3)
24 (PM 4)
25 (PM 5)
26 (PM 6)
27 (PM 7)
28 (PM 8)
29 (PM 9)
30 (PM10)
31 (PM11)
Description
(Default)
Description
(Default)
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