參數(shù)資料
型號(hào)： M41T93ZQA6F
廠商： STMICROELECTRONICS
元件分類： 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取
英文描述： 1 TIMER(S), REAL TIME CLOCK, PQCC16
封裝： 4 X 4 MM, ROHS COMPLIANT, QFN-16
文件頁(yè)數(shù)： 24/49頁(yè)
文件大?。?/td> 719K
代理商： M41T93ZQA6F
Clock operation
M41T93
Doc ID 12615 Rev 5
3.8.5
TD1/0
These are the timer source clock frequency selection bits (see Table 9). These bits
determine the source clock for the countdown timer (see Table 10). When not in use, the
TD1 and TD0 bits should be set to ‘11’ (1/60 Hz) for power saving.
Note:
Writing to the timer register will not reset the TF bit or clear the interrupt.
Table 9.
Timer source clock frequency selection (244.1 s to 4.25 hrs)
TD1
TD0
Timer source clock frequency (Hz)
0
4096 (244.1 s)
0
1
64 (15.6 ms)
10
1 (1 s)
1
1/60 (60 s)
Table 10.
Timer countdown value register bits (addr 11h)
Bit
Symbol
Description
7 - 0
<timer countdown value>
This register holds the loaded countdown value ‘n.’
Countdown period = n / source clock frequency
相關(guān)PDF資料
PDF描述
M41T93RQA6F 1 TIMER(S), REAL TIME CLOCK, PQCC16
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