參數(shù)資料
型號: S-35399A03-J8T2G
元件分類: 時鐘/數(shù)據(jù)恢復(fù)及定時提取
英文描述: 1 TIMER(S), REAL TIME CLOCK, PDSO8
封裝: LEAD FREE, SOP-8
文件頁數(shù): 9/53頁
文件大?。?/td> 472K
代理商: S-35399A03-J8T2G
2-WIRE REAL-TIME CLOCK
Rev.2.0_00
S-35399A03
Seiko Instruments Inc.
17
7. Up counter
The up counter is a 24-bit Read-only register. It starts binary counting from “000000h” from power-on and continues
counting as long as power is being applied. It continues counting when initialization, instead of returning to “000000h”. At
power-on, registers are cleared by the power-on detection circuit so that the up counter is cleared to “000000h”. If the
power-on detection circuit does not operate successfully, the counter may start from the indefinite status. For successful
operation of the power-on detection circuit, refer to “ Power-on Detection Circuit and Register Status”. Regarding
the operation timing of the up counter, refer to “ Up-Count Operation”.
C128
C64
C32
C16
C8
C4
C2
C1
B7
B0
C32k
C16k
C8k
C4k
C2k
C1k
C512
C256
B7
B0
C8M
C4M
C2M
C1M
C512k
C256k
C128k
C64k
B7
B0
Figure 18 Up Counter
Table 12 Example of Count Value and Read Data in Register
Count Value
Read data in register
000001h
000080h
000002h
000040h
EFFFFFh
F7FFFFh
FFFFFFh
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