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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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USB2640 датащи(PDF) 43 Page - Microchip Technology |
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USB2640 датащи(HTML) 43 Page - Microchip Technology |
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43 / 60 page  2015-2021 Microchip Technology Inc. DS00001947C-page 43 USB2640/USB2641 8.0 PIN RESET STATES 8.1 Pin Reset States FIGURE 8-1: PIN RESET STATES TABLE 8-1: LEGEND FOR PIN RESET STATES TABLE Symbol Description Y Hardware enables function 0 Output low 1 Output high -- Hardware disables function Z Hardware disables output driver (high impedance) PU Hardware enables pull-up PD Hardware enables pull-down HW Hardware controls function, but state is protocol dependent (FW) Firmware controls function through registers VDD Hardware supplies power through pin, applicable only to CARD_PWR pin none Hardware disables pad TABLE 8-2: USB2640 PIN RESET STATES Reset State Pin Pin Name Function Output PU/PD Input 1 USBDN_DM2 USBDN_DM2 0 PD -- 2 USBDN_DP2 USBDN_DP2 0 PD -- 3 USBDN_DM3 USBDN_DM3 0 PD -- 4 USBDN_DP3 USBDN_DP3 0 PD -- 6PRTCTL2 PRTCTL 0 -- -- Voltage Signal (v) Time (t) RESET RESET Hardware Initialization Firmware Operational VDD33 VSS |
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