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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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AT83SND1C 데이터시트(PDF) 99 Page - ATMEL Corporation |
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AT83SND1C 데이터시트(HTML) 99 Page - ATMEL Corporation |
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99 / 212 page  99 4109J–8051–10/06 AT8xC51SND1C Reset Value = 0000 0000b Table 82. USBINT Register USBINT (S:BDh) – USB Global Interrupt Register Reset Value = 0000 0000b Table 83. USBIEN Register USBIEN (S:BEh) – USB Global Interrupt Enable Register Bit Number Bit Mnemonic Description 7FEN Function Enable Bit Set to enable the function. The device firmware should set this bit after it has received a USB reset and participate in the following configuration process with the default address (FEN is reset to 0). Cleared by hardware at power-up, should not be cleared by the device firmware once set. 6 - 0 UADD6:0 USB Address Bits This field contains the default address (0) after power-up or USB bus reset. It should be written with the value set by a SET_ADDRESS request received by the device firmware. 7654 3210 - - WUPCPU EORINT SOFINT - - SPINT Bit Number Bit Mnemonic Description 7 - 6 - Reserved The value read from these bits is always 0. Do not set these bits. 5WUPCPU Wake Up CPU Interrupt Flag Set by hardware when the USB controller is in SUSPEND state and is re- activated by a non-idle signal from USB line (not by an upstream resume). This triggers a USB interrupt when EWUPCPU is set in the USBIEN. Cleared by software after re-enabling all USB clocks. 4 EORINT End of Reset Interrupt Flag Set by hardware when a End of Reset has been detected by the USB controller. This triggers a USB interrupt when EEORINT is set in USBIEN. Cleared by software. 3 SOFINT Start of Frame Interrupt Flag Set by hardware when an USB Start of Frame packet (SOF) has been properly received. This triggers a USB interrupt when ESOFINT is set in USBIEN. Cleared by software. 2 - 1 - Reserved The value read from these bits is always 0. Do not set these bits. 0SPINT Suspend Interrupt Flag Set by hardware when a USB Suspend (Idle bus for three frame periods: a J state for 3 ms) is detected. This triggers a USB interrupt when ESPINT is set in USBIEN. Cleared by software. 7654 3210 - - EWUPCPU EEORINT ESOFINT - - ESPINT |
유사한 부품 번호 - AT83SND1C_06 |
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유사한 설명 - AT83SND1C_06 |
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