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TLK105 Datasheet(PDF) 34 Page - Texas Instruments |
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TLK105 Datasheet(HTML) 34 Page - Texas Instruments |
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34 / 104 page  34 TLK105 TLK106 SLLSEB8C – AUGUST 2012 – REVISED APRIL 2016 www.ti.com Submit Documentation Feedback Product Folder Links: TLK105 TLK106 Reset and Power Down Operation Copyright © 2012–2016, Texas Instruments Incorporated 6.4 Power Save Modes The TLK10x supports three types of power-save modes. The lowest power consumption is achieved in IEEE power down mode. To enter IEEE power down mode, pull the INT/PWDN pin to LOW or program bit 11 in the Basic Mode Control Register (BMCR), address 0x0000. In this mode all internal circuitry except SMI functionality is shut down (Register access is still available). To enable and activate all other power save modes through register access, use register PHYSCR (0x0011h). Setting bit 14 enables all power-save modes; bits [13:12] select between them. Setting bits [13:12] to “01” powers down the PHY, forcing it into IEEE power down mode (Similar to BMCR bit 11 functionality). Setting bits [13:12] to “10” puts the PHY in Low Power Active Energy Saving mode. Setting bits [13:12] to “11” puts the PHY in Low Power Passive Energy Saving mode. When these bits are cleared, the PHY powers up and returns to the last state it was in before it was powered down. |
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