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UCS81003 数据表(PDF) 82 Page - Microchip Technology |
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UCS81003 数据表(HTML) 82 Page - Microchip Technology |
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82 / 108 page  UCS81003 DS20005334A-page 82 2014 Microchip Technology Inc. bit 3-0 CS_S1_R1<3:0>: Defines the stimulus response as shown below: 0000 = Remove previous response on DPOUT and DMOUT. 0001 = Apply voltage on DPOUT (Note 1). 0010 = Apply voltage on DMOUT (Note 2). 0011 = Apply voltage on DPOUT and DMOUT. 0100 = Connect resistor from DPOUT to GND (Note 1). 0101 = Do not use. 0110 = Connect voltage divider from VBUS to GND with “center” at DPOUT (Note 1). 0111 = Connect resistor form DMOUT to GND (Note 2). 1000 = Do not use. 1001 = Connect voltage divider from VBUS to GND with “center” at DMOUT (Note 2). 1010 = Connect 200resistor from D POUT to DMOUT. 1011 = Do not use. 1100 = Connect voltage divider from VBUS to GND with ‘center’ at DPOUT and DMOUT. 1101 = Connect resistor from DPOUT to GND and DMOUT to GND. 1110 = If CS_STIM1 = 000, the 15 k pull down resistors applied to D POUT and DMOUT during emu- lation reset are not removed. If CS_STIM1 = 111, the 15 k pull down resistors applied to DPOUT and DMOUT during emulation reset are removed. For all other CS_STIM1 settings, whatever was applied is not changed. 1111 = Same as 1110 case above. Note 1: If CS_STIM1<2:0> = 000b and no other response was applied to the DPOUT pin, the 15 k pull-down resistor applied to the DPOUT pin during emulation reset is not removed. Otherwise, the previous response is left on the DPOUT pin (if applicable) or the 15 k pull-down resistor is removed. 2: If CS_STIM1<2:0> = 000b and no other response was applied to the DMOUT pin, the 15 k pull-down resistor applied to the DMOUT pin during emulation reset is not removed. Otherwise, the previous response is left on the DMOUT pin (if applicable) or the 15 k pull-down resistor is removed. REGISTER 10-38: CUSTOM EMULATION STIMULUS 1 CONFIGURATION 3 REGISTER (ADDRESS 43H)(Note 1) U-x U-x R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 — — CS_S1_PUPD<1:0> CS_S1_TH<3:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 7-6 Unimplemented bit 5-4 CS_S1_PUPD<1:0>: Determines the magnitude of the pull-down current applied on the DPOUT and DMOUT pins when the stimulus response is to apply a voltage and the voltage magnitude is set at pull- down (0000b). The bit decode is given below. 00 = 10 µA 01 = 50 µA 10 = 100 µA 11 = 150 µA REGISTER 10-37: CUSTOM EMULATION STIMULUS 1 CONFIGURATION 2 REGISTER (ADDRESS 42H) (CONTINUED) |
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