參數(shù)資料
型號(hào)： R2051K01
廠商： RICOH COMPANY LTD
元件分類： 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)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)： 9/53頁
文件大小： 343K
代理商： R2051K01
R2051 Series
12345
Rev.1.04
- 17 -
l
Time Counter (Address 0-2h)
Second Counter (Address 0h)
D7
D6
D5
D4
D3
D2
D1
D0
-
S40
S20
S10
S8
S4
S2
S1
(For Writing)
0
S40
S20
S10
S8
S4
S2
S1
(For Reading)
0
Indefinite
Default Settings *)
Minute Counter (Address 1h)
D7
D6
D5
D4
D3
D2
D1
D0
-
M40
M20
M10
M8
M4
M2
M1
(For Writing)
0
M40
M20
M10
M8
M4
M2
M1
(For Reading)
0
Indefinite
Default Settings *)
Hour Counter (Address 2h)
D7
D6
D5
D4
D3
D2
D1
D0
-
P
/A
or H20
H10
H8
H4
H2
H1
(For Writing)
0
P
/A
or H20
H10
H8
H4
H2
H1
(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.
*
Time digit display (BCD format) as follows:
The second digits range from 00 to 59 and are carried to the minute digit in transition from 59 to 00.
The minute digits range from 00 to 59 and are carried to the hour digits in transition from 59 to 00.
The hour digits range as shown in "P13
l Control Register 1 (ADDRESS Eh) (2) /12
24: /12-24-hour
Mode Selection Bit" and are carried to the day-of-month and day-of-week digits in transition from PM11
to AM12 or from 23 to 00.
*
Any writing to the second counter resets divider units of less than 1 second.
*
Any carry from lower digits with the writing of non-existent time may cause the time counters to
malfunction. Therefore, such incorrect writing should be replaced with the writing of existent time data.
l
Day-of-week Counter (Address 3h)
D7
D6
D5
D4
D3
D2
D1
D0
-
W4
W2
W1
(For Writing)
0
W4
W2
W1
(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 day-of-week counter is incremented by 1 when the day-of-week digits are carried to the
day-of-month digits.
*
Day-of-week display (incremented in septimal notation):
(W4, W2, W1) = (0, 0, 0)
→ (0, 0, 1)→…→(1, 1, 0) → (0, 0, 0)
*
Correspondences between days of the week and the day-of-week digits are user-definable
(e.g. Sunday = 0, 0, 0)
*
The writing of (1, 1, 1) to (W4, W2, W1) is prohibited except when days of the week are unused.
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參數(shù)描述
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