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PT7C4372A Datasheet(PDF) 7 Page - Pericom Semiconductor Corporation |
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PT7C4372A Datasheet(HTML) 7 Page - Pericom Semiconductor Corporation |
7 / 30 page |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 12-07-0001 PT0150-8 07/04/12 7 PT7C4372A/4372C Real-time Clock Module (I 2C Bus) Registers Allocation of registers Addr. Function Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 0 Second - *5 S40 S20 S10 S8 S4 S2 S1 1 Minutes - M40 M20 M10 M8 M4 M2 M1 2 Hours - - H20 or P, /A H10 H8 H4 H2 H1 3 Days of the week - - - - - W4 W2 W1 4 Days - - D20 D10 D8 D4 D2 D1 5 Months - - - M10 M8 M4 M2 M1 6 Years Y80 Y40 Y20 Y10 Y8 Y4 Y2 Y1 7 Time Trimming /XSL F6 F5 F4 F3 F2 F1 F0 8 Alarm_A: Minute - AM40 AM20 AM10 AM8 AM4 AM2 AM1 9 Alarm_A: Hour - - AH20 or AP, /A AH10 AH8 AH4 AH2 AH1 A Alarm_A: Day - AW6 AW5 AW4 AW3 AW2 AW1 AW0 B Alarm_B: Minute - BM40 BM20 BM10 BM8 BM4 BM2 BM1 C Alarm_B: Hour - - BH20 or BP, /A BH10 BH8 BH4 BH2 BH1 D Alarm_B: Day - BW6 BW5 BW4 BW3 BW2 BW1 BW0 E Control 1 AALE BALE SL2 SL1 TEST *2 CT2 CT1 CT0 F Control 2 - - /12, 24 ADJ or XSTP *3 /CLEN CTFG AAFG BAFG Caution points: *1. All bits marked with "-" are read-only bits. Their value when read is always "0". *2. The TEST bit is used by the manufacturer for testing. Be sure to set "0" for this bit. *3. ADJ is for write and XTSP is for read operation. The XTSP bit is set to “0” by writing data into the control register 2 for normal oscillation. When XSTP is set to “1”, the Time Trimming register, Control 1 register, /CLEN and TEST bits are reset to “0”. *4. All bits marked with "-" are read-only bits. Their value when read is always "0". |
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