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AL2100-DS00-R 数据表(PDF) 12 Page - Broadcom Corporation. |
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AL2100-DS00-R 数据表(HTML) 12 Page - Broadcom Corporation. |
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12 / 52 page ![]() AL2100 Preliminary Data Sheet 11/11/02 Broa d c om Co rp o r a ti o n Page 4 Document AL2100-DS01-405-R MDIO 43 BU MDIO (input/output): management data I/O. This serial input/output pin is used to read from and write to the MII register. The data value on the MDIO pin is valid, and latched on the rising edge of MDC. This pin requires a 1 K Ohm resistor pull-up. MDC 44 BD MDC (Input): management data clock. The MDC clock input must be provided to allow serial management functions. This pin has a SCHMTT- trigger input. PHYAD1/LED_FX_SD 45 BD PHYAD1 (reset-read input): pull high or low to set PHY address bit 1 for serial management functions. LED_FX_SD (output): LED output for fiber signal detects. The active level is the invert of the reset read value. PHYAD2/Reserved 46 BD PHYAD2 (reset-read input): pull high or low to set PHY address bit 2 for serial management functions. Output function is reserved. PHYAD3/LED4_FDX 47 BD PHYAD3 (reset-read input): pull high or low to set PHY address bit 3 for serial management functions. LED4_FDX (output): The default behavior is on when the result of the auto-negotiation on the twisted pair port is full duplex. This LED pin is fully programmable. The active level is the invert of the reset read value. PHYAD4/FX_DIS 48 BD PHYAD4 (reset-read input): pull high or low to set PHY address bit 4 for serial management functions. FX_DIS (output): disable fiber output. The active level is the invert of the reset read value. Table 1: Pin Descriptions Name Number Type Description |
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