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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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AT43USB325 데이터시트(PDF) 87 Page - ATMEL Corporation |
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AT43USB325 데이터시트(HTML) 87 Page - ATMEL Corporation |
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87 / 109 page  87 3355C–USB–4/05 AT43USB325 • Bit 2 – PSSTAT: Port Suspend Status 0 = Port not suspended 1 = Port suspended Set and cleared by the hardware as controlled through Port Control Register. • Bit 1 – PESTAT: Port Enable Status 0 = Port is disabled 1 = Port is enabled Set and cleared by the hardware as controlled through Port Control register. • Bit 0 – PCSTAT: Port Connect Status 0 = No device on this port 1 = Device present on this port Set to 1 for Port 1. Set and cleared by the hardware after sampling of connect status at EOF2. 8.4.4.2 Overcurrent Detect Register – UOVCER • Bit 7..3 – Reserved These bits are reserved in the AT43USB325 and will read as zero. •Bit 2 – OVC 2 Setting this bit enables the hub to detect an overcurrent on a port while the hub is in the suspend state. The overcurrent condition is signalled by a 1 to 0 transition at PD0. • Bit 1, 0 – Reserved These bits are reserved in the AT43USB325 and will read as zero. Bit 7 6 5 4 3 2 1 0 $1FF2 –– – – – OVC2 – – UOVCER Read/Write R R R R R R/W R R Initial Value 0 0 0 0 0 0 0 0 |
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