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VSC8541-02 Datasheet(PDF) 61 Page - Microchip Technology |
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VSC8541-02 Datasheet(HTML) 61 Page - Microchip Technology |
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61 / 101 page  Registers VMDS-10513 VSC8541-02 Datasheet Revision 4.1 52 4.4.3 RGMII Control The following table shows the register settings for the RGMII controls at address 20E2. 11:10 Invert LED polarity R/W Sticky bit. Invert polarity of LED signals. Default is to drive an active low signal on the LED pins. For more information, see Extended LED Modes, page 22. 00 9 Reserved RO Reserved. 8 Link status RO 1: Link is up. 0 7 1000BASE-T EEE enable RO 1: EEE is enabled for 1000BASE-T. 0 6 100BASE-TX EEE enable RO 1: EEE is enabled for 100BASE-TX. 0 5 Enable 1000BASE-T force mode R/W Sticky bit. 1: Enable 1000BASE-T force mode to allow PHY to link-up in 1000BASE-T mode without forcing master/slave when register 0, bits 6 and 13 are set to 2’b10. 0 4 Force transmit LPI1 R/W Sticky bit. 1: Enable the EPG to transmit LPI on the MDI, ignore data from the MAC interface. 0: Transmit idles being received from the MAC. 0 3 Inhibit 100BASE-TX transmit EEE LPI R/W Sticky bit. 1: Disable transmission of EEE LPI on transmit path MDI in 100BASE-TX mode when receiving LPI from MAC. 0 2 Inhibit 100BASE-TX receive EEE LPI R/W Sticky bit. 1: Disable transmission of EEE LPI on receive path MAC interface in 100BASE-TX mode when receiving LPI from the MDI. 0 1 Inhibit 1000BASE-T transmit EEE LPI R/W Sticky bit. 1: Disable transmission of EEE LPI on transmit path MDI in 1000BASE-T mode when receiving LPI from MAC. 00 0 Inhibit 1000BASE-T receive EEE LPI R/W Sticky bit. 1: Disable transmission of EEE LPI on receive path MAC interface in 1000BASE-T mode when receiving LPI from the MDI. 0 1. 17E2 bits 4:0 are for debugging purposes only, not for operational use. Table 60 • RGMII Control, Address 20E2 (0x14) Bit Name Access Description Default 15 FLF2 enable R/W Fast Link Failure 2 indication enable. 0: Disabled. 1: Enabled. 0 14:13 Reserved RO Reserved. Table 59 • EEE Control, Address 17E2 (0x11) (continued) Bit Name Access Description Default |
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