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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LAN89730 датащи(PDF) 104 Page - Microchip Technology |
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LAN89730 датащи(HTML) 104 Page - Microchip Technology |
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104 / 218 page  LAN89730 DS60001348A-page 104 2013-2015 Microchip Technology Inc. 4.12 Wake Events The following events can wake up/enable the device, depending on the power state. • USB host Resume • Wake On LAN (Wakeup Frame, Magic Packet, Perfect Destination Address Frame, and Broadcast Frame) • Reception of a Good Frame - a frame received when no Wake On LAN events are enabled in the Wakeup Control and Status Register (WUCSR) that meets the filtering requirements configured in the MAC Control Register (MAC_CR). • PHY Energy Detect • PHY Link Up • GPIO[10:0] Table 4-63 illustrates the wake events permitted in each of the power states. The occurrence of a GPIO wake event causes the corresponding bit in the Interrupt Status Register (INT_STS) to be set. Before suspending the device, the host must ensure that any pending wake events are cleared. Otherwise, the device will immediately be awakened after being suspended. Note: The Wake On LAN bit of the Wakeup Status (WUPS) is used to signal both Wake On LAN events and wakeup from SUSPEND3 state due to reception of frames passing the filtering constraints set by the MAC Control Register (MAC_CR). In order to interpret the Wakeup Status (WUPS) without ambiguity, the soft- ware driver may examine the Suspend Mode (SUSPEND_MODE) field of the Power Management Control Register (PMT_CTL) to determine the SUSPEND state it is coming out of. TABLE 4-63: POWER STATE/WAKE EVENT MAPPING Power State USB Host Resume Signaling WOL Good Frame PHY Energy Detect PHY Link Up GPIO[10:0] SUSPEND0 YES YES NO NO YES YES SUSPEND1 YES NO NO YES NO YES SUSPEND2 YES NO NO NO NO YES SUSPEND3 YES NO YES NO YES YES |
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