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參數(shù)資料
| 型號(hào)： | RP5C01A |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | XO, clock |
| 英文描述： | REAL-TIME CLOCK WITH INTERNAL RAM |
| 中文描述： | 0 TIMER(S), REAL TIME CLOCK, PDIP18 |
| 封裝： | DIP-18 |
| 文件頁數(shù)： | 6/10頁 |
| 文件大小： | 124K |
| 代理商： | RP5C01A |
RP/RF5C01A
6
MODE register (Address Dh)
D
3
D
2
Timer EN
Alarm EN
*
) When the Timer EN is set to 0, the 1-second counter and higher-order counters than the 1-second counter stop . If any carrying occurs in the lower-order
counters than the 1 second counter while the Timer EN is 0, carrying will be held and avoided when the Timer EN changes from 0 to 1. Thus, no appar-
ent delay is produced when the duration of the Timer EN = 0 is less than one second.
D
1
M1
D
0
M0
ˉ
0
0
1
1
ˉ
0
1
0
1
MODE00 : Setting and read out of time
MODE01 : Setting and read out of alarm, 12-hour/24-hour and leap year
Read and Write of RAM of BLOCK10
Read and Write of RAM of BLOCK11
1 : Alarm output enabled
0 : Alarm output disabled
(Note that 16Hz or 1Hz signals are not affected.)
1 : Counting time starts; 0 : the 1-second counter and higher-order than
the 1-second counter stop
12/24 select register (MODE01, Address Ah)
D
0
=1 sets to 24-hour system ; D
0
=0 sets to 12-hour system.
Set the 10-hour counter as D
1
=1 for p.m., D
1
=0 for a.m.
Leap year counter (MODE01, Address Bh)
(D
1
, D
0
)=(0, 0) sets the counter for leap years. The counter value changes in order of (0, 0) (0, 1) (1, 0) (1, 1) (0, 0)
repeatedly in the same timing as the year counter.
RESET controller/16Hz
·
1Hz clock register. (Address Fh)
D
0
=1 : Resets all alarm registers.
D
1
=1 : Resets divider stages for seconds or smaller units.
D
2
=0 : 16Hz clock pulse ON.
D
3
=0 : 1Hz clock pulse ON.
*
) Addresses 0h to Dh are applicable both for Read and Write.
*
) Addresses Eh to Fh are applicable only for Write.
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