BL3501 View Datasheet(PDF) - Shanghai Belling Co., Ltd.
Part Name
Description
MFG CO.
'BL3501' PDF : 19 Pages View PDF
Ϟ⍋䋱ኁⷑ߯ᖂ⬉ᄤ᳝䰤݀ৌ
Shanghai Belling-Systron Microelectronics Co., Ltd.
ԡᏺ57&ⱘ0$6.ऩ⠛ᴎ㢃⠛%/
Ң㗠ৃҹࡴ䗳 RTC ⱘ⌟䆩䖛DŽ㋏㒳ԡᯊˈRTCT ⏙䳊DŽ
F38KEĔ38KHz Modulation Enable
1ܕ˖䆌 38KHz 䇗ࠊ
0˖ϡܕ䆌 38KHz 䇗ࠊDŽ
F38KE އᅮᰃ৺ OUT ᓩ㛮ⱘ䕧ߎֵোϞࡴ䕑 38KHz ⱘ䇗ࠊ⊶DŽ㋏㒳ԡᯊˈF38KE
⏙䳊DŽ
3.2.11 RTC ࣅᄥޗӉ୶ RCRďRTC Control RegisterĐ
RCR ᰃϔϾ⫼Ѣࠊ RTC ഫᎹᮍᓣⱘᆘᄬ఼DŽ
Address bit 7 bit 6 bit 5 bit 4
bit 3 bit 2 bit 1 bit 0
RCR $90 RTCIF RTCIE
ADJ/XSTP FLAG
CT1 CT0
RTCIFĔRTC Interrupt Flag
1˖⏙ RTC Ёᮁ䫕ᄬֵোDŽ
Reset
0101 00-0
0˖ֱ⬭ RTC Ёᮁ䫕ᄬֵোDŽ
㋏㒳ԡᯊˈRTCIF ⏙䳊DŽRTC ѻ⫳ЁᮁৢˈЁᮁֵোᇚ㹿䫕ᄬˈᔧ RTCIF=1 ᯊˈ⏙
RTC Ёᮁ䫕ᄬֵো˗RTCIF=0 ᯊˈRTC Ёᮁ䫕ᄬֵোϡবDŽડᑨ RTC ЁᮁПৢˈЁᮁ
໘⧚ᄤᑣЁᑨᇍ RTCIF ݭĀ1āˈ৺߭ᇚϡᮁડᑨ RTC ЁᮁDŽ䇏 RTCIF 㒧ᵰྟ㒜ЎĀ0āDŽ
RTCIEĔRTC Interrupt Enable
1˖⽕ℶ RTC ЁᮁDŽ
0ܕ˖䆌 RTC ЁᮁDŽ
RTCIE ᰃ RTC ЁᮁՓ㛑ԡˈЁᮁֵোḍ CT1:CT0 ⱘ㓪ⷕϡৠ䕧ߎϡৠⱘ਼ᳳᗻЁᮁDŽ
㋏㒳ԡᯊˈRTCIE 㕂 1ˈ⽕ℶ RTC ЁᮁDŽ
ADJ/XSTPĔClock Adjust or Crystal Oscillator Stop
ADJ/XSTP ᰃϔԡ⫼ԡˈܹݭᯊᰃ ADJ˄ᯊ䩳᷵ℷԡ˅ˈ䇏ߎᯊᰃ XSTP˄RTC
ᤃذᤃẔ⌟ԡ˅DŽᇍ ADJ 㕂Ā1āৢˈབᵰ⾦㑻ⱘ䅵᭄Ѣ 30ˈ߭ߚ䩳ⱘ䅵᭄ࡴϔˈ䱣ৢ
⾦䅵᭄㹿⏙䳊ˈПৢ ADJ 䖨ಲॳ⢊ᗕDŽXSTP˖া㛑䇏ߎˈ᮴ࡳݭ㛑DŽᯊ䩳ഫϞ⬉ৢЎ 1ˈ
ᇍᅗᅲ⦄߱ྟ࣪˄ݭ᪡˅ৢˈবЎ 0DŽབᵰ XSTP さ✊বЎ 1ˈ䇈ᯢϞϔ䇏᪡ৢˈ
RTC ⱘ 32KHz ᤃ᳒㒣ذᤃˈᯊ䯈᭄ϡᇍˈᦤ⼎ᮄᯊ䯈᭄DŽ
FLAGĔRTC R/W Enable Flag
1˖⽕ℶ䇏ݭ᪡DŽ
0ܕ˖䆌䇏ݭ᪡DŽ
FLAG ᰃ䇏ܕݭ䆌ᷛᖫԡˈᰃা䇏ⱘDŽ⬅Ѣ RTC ЁᄬѨ㑻䅵఼᭄ˈⳌѦП䯈ᄬ䖯
⬉䆱˖Ӵⳳ˖㔥ഔ ZZZV\VWURQVKFQRI
Share Link: 
