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RS5C372A-E2-F Datasheet(PDF) 27 Page - RICOH electronics devices division |
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RS5C372A-E2-F Datasheet(HTML) 27 Page - RICOH electronics devices division |
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27 / 57 page  RS5C372A/B 26 2.7-6 Alarm_B day-of-the-week register (internal address Dh) D7 D6 D5 D4 D3 D2 D1 D0 — BW6 BW5 BW4 BW3 BW2 BW1 BW0 (For write operation) 0 BW6 BW5 BW4 BW3 BW2 BW1 BW0 (For read operation) 0 Undefined Undefined Undefined Undefined Undefined Undefined Undefined Default )The default means read value when XSTP bit is set to “1” by starting up from 0V, or supply voltage drop, etc. Alarm_A, Alarm_B hour register D5 is set to 0 for AM and 1 for PM in the 12-hour display system at AP/ A . The register D5 indicates 10 digit of hour digit in 24-hour display system at AH20. To activate alarm operation, any imaginary alarm time setting should not be left to avoid unmatching. In hour digit display midnight is set to 12, noon is set to 32 in 12-hour display system. (See section 2.2-1) AW 0 to AW6 correspond to the day-of-the-week counter (W4, W2, W1) being set at (0, 0, 0) to (1, 1, 0). No alarm pulses are output when all of AW 0 to AW6 are set to “0”. Example of Alarm Time Settings Alarm Time Settings Day-of-the-week 12-hour system 24-hour system Sun. AW0 Mon. AW1 Tue. AW2 Wed. AW3 Thu. AW4 Fri. AW5 Sat. AW6 10-hour 1-hour 10-min 1-min 10-hour 1-hour 10-min 1-min 00:00 AM every day 1 1 1 1 1 1 1 1 2 0 0 0 0 0 0 01:30 AM every day 1 1 1 1 1 1 1 0 1 3 0 0 1 3 0 11:59 AM every day 1 1 1 1 1 1 1 1 1 5 9 1 1 5 9 00:00 PM on Monday through Friday 0 1 1 1 1 1 0 3 2 0 0 1 2 0 0 01:30 PM on Sunday 1 0 0 0 0 0 0 2 1 3 0 1 3 3 0 11:59 PM on Monday, Wednesday, and Friday 0 1 0 1 0 1 0 3 1 5 9 2 3 5 9 Designation of days of the week and AW0 to AW6 in the above table is an example. |
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