详细说明：

IP1001 Integrated 10/100/1000 Gigabit Ethernet Transceiver General Description : IP1001 is an integrated physical layer device for 1000BASE-T, 100BASE-TX, and 10BASE-T applications. IP1001 supports MII, GMII and RGMII for different types of 10/100/1000Mb Media Access Controller (MAC). It supports Auto MDI/MDIX function to simplify the network installation and reduce the system maintenance cost. IP1001 supports speed down shift feature for a poor link quality to guarantee data transmission. Cable analysis function “SCA” is supported by programming MII registers of IP1001 through MDC/MDIO. IP1001 supports 3 types of power saving modes; i.e., power down mode defined in IEEE802.3, and APS (auto power saving). Feature : IEEE 802.3 compliant 1000BASE-T, 100BASE-TX, and 10BASE-T Support auto-negotiation Support timing programmable MII/ GMII/ RGMII (delay clock, and driving current etc.) Support 3 power saving modes Support software based Smart Cable Analyzer (SCA) Support auto MDI/MDIX (auto negotiation or force mode) Support auto polarity correction Supports programmable LED modes and LED driving current Supports speed down shift feature Built in synchronization FIFO to support jumbo frame size up to 10KB in giga mode (4KB in 10M/100M mode) Supports 2.1v and 1.2v built-in regulators Provide a 125MHz or 25MHz free running clock Operating voltage 3.3v/ (2.5v option for RGMII)/ 1.8v/ 1.2v 64-pin QFN Supports Lead Free package (Please refer to the Order Information)