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TUSB3410 데이터시트(PDF) 39 Page - Texas Instruments |
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TUSB3410 데이터시트(HTML) 39 Page - Texas Instruments |
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39 / 92 page ![]() 5–7 5.1.14 SERNUM0: Device Serial Number Register (Byte 0) (Addr:FFE8) The device serial number register utilizes (mirrors) this unique 64-bit serial die id number. After power-up reset, this read-only register (SERNUM0) contains byte 0 of the complete 64-bit device serial number. The USB reset cannot reset this register. 765 4 3 2 1 0 D7 D6 D5 D4 D3 D2 D1 D0 R/O R/O R/O R/O R/O R/O R/O R/O BIT NAME RESET FUNCTION 7–0 D[7:0] Device serial number byte 0 value Device serial number byte 0 value NOTE: See the same procedure described in SERNUM7 register for procedure to load device serial number into the shared RAM. 5.1.15 Function Reset And Power-Up Reset Interconnect Figure 5–1 represents the logical connection of the USB-function reset (USBR) and power-up reset (RESET) pins. The internal RESET signal is generated from the RESET pin (PURS signal) or from the USB reset (USBR signal). The USBR can be enabled or disabled by the FRSTE bit in the USBCTL register (on power up, FRSTE = 0). The internal RESET is used to reset all registers and logic, with the exception of the USBCTL and GLOBCTL registers which are cleared by the PURS signal only. USBCTL Register GLOBCTL Register PURS USBR RESET MCU FRSTE USB Function Reset To Internal MMRs RESET G2 WDD[4:0] WDT Reset Figure 5–1. Reset Diagram |
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