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參數(shù)資料
| 型號： | R2051K02 |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 時鐘/數(shù)據(jù)恢復(fù)及定時提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, QCC12 |
| 封裝： | 2 X 2 MM, 0.85 MM PITCH, ULTRA-COMPACT, FFP, 12 PIN |
| 文件頁數(shù)： | 14/53頁 |
| 文件大?。?/td> | 343K |
| 代理商： | R2051K02 |
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R2051 Series
12345
Rev.1.04
- 21 -
Example of Alarm Time Setting
Alarm
Day-of-week
12-hour mode
24-hour mode
Preset alarm time
Sun.
Mon.
Tue.
Wed.
Th.
Fri.
Sat.
10
hr.
1
hr.
10
min.
1
min.
10
hr.
1
hr.
10
min.
1
min.
WW0
WW1
WW2
WW3
WW4
WW5
WW6
00:00 a.m. on all days
1
2
0
01:30 a.m. on all days
1
0
1
3
0
1
3
0
11:59 a.m. on all days
1
5
9
1
5
9
00:00 p.m. on Mon. to Fri.
0
1
0
3
2
0
1
2
0
01:30 p.m. on Sun.
1
0
2
1
3
0
1
3
0
11:59 p.m.
on Mon. ,Wed., and Fri.
0
1
0
1
0
1
0
3
1
5
9
2
3
5
9
Note that the correspondence between WW0 to WW6 and the days of the week shown in the above table is
only an example and not mandatory.
l
Alarm_D Register (Address B-Ch)
Alarm_D Minute Register (Address Bh)
D7
D6
D5
D4
D3
D2
D1
D0
-
DM40
DM20
DM10
DM8
DM4
DM2
DM1
(For Writing)
DM40
DM20
DM10
DM8
DM4
DM2
DM1
(For Reading)
0
Indefinite
Default Settings *)
Alarm_D Hour Register (Address Ch)
D7
D6
D5
D4
D3
D2
D1
D0
-
DH20
DP
/A
DH10
DH8
DH4
DH2
DH1
(For Writing)
0
DH20
DP
/A
DH10
DH8
DH4
DH2
DH1
(For Reading)
0
Indefinite
Default Settings *)
*) Default settings: Default value means read / written values when the PON bit is set to “1” due to VDD
power-on from 0 volts.
*
The D5 bit represents DP/A when the 12-hour mode is selected (0 for a.m. and 1 for p.m.) and DH20
when the 24-hour mode is selected (tens in the hour digits).
*
The Alarm_D registers should not have any non-existent alarm time settings.
(Note that any mismatch between current time and preset alarm time specified by the Alarm_D registers
may disable the alarm interrupt circuit.)
*
When the 12-hour mode is selected, the hour digits read 12 and 32 for 0a.m. and 0p.m., respectively.
(See "P13
lControl Register 1 (ADDRESS Eh) (2) /12
24: 12-/24-hour Mode Selection Bit")
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| R2051K02-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function |
| R2051S01-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function |
| R2051S02-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function |
| R2051S03-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function |
| R2051T01-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function |
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