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HT46R01B-1 Datasheet(PDF) 19 Page - Holtek Semiconductor Inc |
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HT46R01B-1 Datasheet(HTML) 19 Page - Holtek Semiconductor Inc |
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19 / 71 page  HT46R01B-1/HT46R01N-1 HT48R01B-1/HT48R01N-1 Rev.1.00 19 June 9, 2011 · CTRL0 Register - HT48R01B-1/HT48R01N-1 Bit 76543210 Name ¾ PFDCS ¾¾¾ PFDC LXTLP CLKMOD R/W ¾ R/W ¾¾¾ R/W R/W R/W POR ¾ 0 ¾¾¾ 000 Bit 7 unimplemented, read as ²0² Bit 6 PFDCS: PFD clock source selection 0: Timer 0 1: Timer 1 Bit 5~3 unimplemented, read as ²0² Bit 2 PFDC: I/O or PFD selection 0: I/O 1: PFD Bit 1 LXTLP: LXT oscillator low power control function 0: LXT oscillator quick start-up mode 1: LXT oscillator low power mode Bit 0 CLKMOD: system clock mode selection 0: High speed - HIRC oscillator used as system clock 1: Low speed - LXT oscillator used as system clock, HIRC oscillator stopped. · CTRL1 Register Bit 76543210 Name INTEG1 INTEG0 TBSEL1 TBSEL0 WDTEN3 WDTEN2 WDTEN1 WDTEN0 R/W R/W R/W R/W R/W R/W R/W R/W R/W POR 10001010 Bit 7, 6 INTEG1, INTEG0: External interrupt edge type 00: disable 01: rising edge trigger 10: falling edge trigger 11: dual edge trigger Bit 5, 4 TBSEL1, TBSEL0: Time base period selection 00: 2 10 ´ (1/fTP) 01: 2 11 ´ (1/fTP) 10: 2 12 ´ (1/fTP) 11: 2 13 ´ (1/fTP) Bit 3~0 WDTEN3, WDTEN2, WDTEN1, WDTEN0: WDT function enable 1010: WDT disabled Other values: WDT enabled - Recommended value is 0101 If the ²watchdog timer enable² configuration option is selected, then the watchdog timer will always be enabled and the WDTEN3~WDTEN0 control bits will have no effect. Note: The WDT is only disabled when both the WDT configuration option is disabled and when bits WDTEN3~WDTEN0=1010. The WDT is enabled when either the WDT configuration option is enabled or when bits WDTEN3~WDTEN0 ¹1010. |
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