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RTL8208 Datasheet(PDF) 9 Page - List of Unclassifed Manufacturers |
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RTL8208 Datasheet(HTML) 9 Page - List of Unclassifed Manufacturers |
9 / 40 page ![]() RTL8208 2001/01/07 9 Rev.1.923 5.5 SMI (Serial Management Interface) Pins Pin Name Pin Type Description MDIO 112 I/O, (Pu) Management Data I/O. Bi-directional data interface. A 1.5K Ω pull-up resistor is required (as specified in IEEE802.3u). The MAC controller access of the MII registers should be delayed at least 700us after completion of the reset because of the internal reset operation of the RTL8208 MDC 113 I, (Pd) Management Data Clock. 0 to 25MHz clock sourced by MAC to sample MDIO. The MAC controller access of the MII registers should be delayed at least 700us after completion of the reset because of the internal reset operation of the RTL8208 5.6 LED Pins Pin Name Pin Type Description LED_DATA/ LEDMODE[1] 49 I/O LED_DATA outputs serial status bits that can be shifted into a shift register to be displayed via LEDs. LED_DATA is output synchronously to LED_CLK. This pin is latched upon reset as LEDMODE[1] LEDMODE[1:0] controls the forms of serial LED statuses. See LED operation mode section. LED_CLK/ LEDMODE[0] 50 I/O LED_CLK outputs the reference clock for the serial LED signals. This pin is latched upon reset as LEDMODE[0] |
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