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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT56RB688 датащи(PDF) 35 Page - Holtek Semiconductor Inc |
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HT56RB688 датащи(HTML) 35 Page - Holtek Semiconductor Inc |
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35 / 164 page  Pull-high Resistors Many product applications require pull-high resistors for their switch inputs usually requiring the use of an external resistor. To eliminate the need for these external resistors, all I/O pins, when configured as an input have the capability of being connected to an internal pull-high resistor. These pull-high resistors are selected using registers PAPU, PBPU, PCPU, PDPU, PEPU and PFPU and are implemented using weak PMOS transistors. PAWU, PAPU, PA, PAC, PBPU, PB, PBC, PCPU, PC, PCC, PDPU, PD, PDC, PEPU, PE, PEC, PFPU, PF and PFC Registers Register Name POR Bit 76543210 PAWU 00H PAWU7 PAWU6 PAWU5 PAWU4 PAWU3 PAWU2 PAWU1 PAWU0 PA FFH PA7 PA6 PA5 PA4 PA3 PA2 PA1 PA0 PAC FFH PAC7 PAC6 PAC5 PAC4 PAC3 PAC2 PAC1 PAC0 PAPU 00H PAPU7 PAPU6 PAPU5 PAPU4 PAPU3 PAPU2 PAPU1 PAPU0 PB FFH PB7 PB6 PB5 PB4 PB3 PB2 PB1 PB0 PBC FFH PBC7 PBC6 PBC5 PBC4 PBC3 PBC2 PBC1 PBC0 PBPU 00H PBPU7 PBPU6 PBPU5 PBPU4 PBPU3 PBPU2 PBPU1 PBPU0 PC FFH PC7 PC6 PC5 PC4 PC3 PC2 PC1 PC0 PCC FFH PCC7 PCC6 PCC5 PCC4 PCC3 PCC2 PCC1 PCC0 PCPU 00H PCPU7 PCPU6 PCPU5 PCPU4 PCPU3 PCPU2 PCPU1 PCPU0 PD FFH PD7 PD6 PD5 PD4 PD3 PD2 PD1 PD0 PDC FFH PDC7 PDC6 PDC5 PDC4 PDC3 PDC2 PDC1 PDC0 PDPU 00H PDPU7 PDPU6 PDPU5 PDPU4 PDPU3 PDPU2 PDPU1 PDPU0 PE FFH PE7 PE6 PE5 PE4 PE3 PE2 PE1 PE0 PEC FFH PEC7 PEC6 PEC5 PEC4 PEC3 PEC2 PEC1 PEC0 PEPU 00H PEPU7 PEPU6 PEPU5 PEPU4 PEPU3 PEPU2 PEPU1 PEPU0 PF FFH PF7 PF6 PF5 PF4 PF3 PF2 PF1 PF0 PFC FFH PFC7 PFC6 PFC5 PFC4 PFC3 PFC2 PFC1 PFC0 PFPU 00H PFPU7 PFPU6 PFPU5 PFPU4 PFPU3 PFPU2 PFPU1 PFPU0 PAWUn: PA wake-up function enable 0: disable 1: enable PAPUn/PBPUn/PCPUn/PDPUn/PEPUn/PFPUn: Pull-high function enable 0: disable 1: enable PAn/PBn/PCn/PDn/PEn/PFn: I/O port data bit PACn/PBCn/PCCn/PDCn/PECn/PFCn: I/O port type selection bit 0: output 1: input Port A Wake-up The HALT instruction forces the microcontroller into a Power Down condition which preserves power, a feature that is important for battery and otuher low-power applications. Various methods exist to wake-up the microcontroller, one of which is to change the logic condition on one of the Port A pins from high to low. After a HALT instruction forces the microcontroller into entering a Power Down condition, the processor will remain in a low-power state until the logic condition of the selected wake-up pin on Port A changes from high to low. This function is especially suitable for applications that can be woken up via external switches. Each pin on Port A can be selected individually to have this wake-up feature using the PAWU register. HT56RB688 TinyPowerTM A/D type Smart Card OTP MCU with LCD, DAC, ISO 7816 and USB Interfaces Rev. 1.10 35 April 15, 2013 |
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