IP1001C consists of the physical layer device for 1000Base-T, 100Base-TX, and 10Base-Te and SERDES for 1000Base-X, 100Base-FX applications. IP1001C offers RGMII connecting the 10/100/1000 Mbps Media Access Controller (MAC) .

IP1001C supports TP and Fiber auto selection, TTL level signal for SD detection, WOL, and Green Power. For power saving option, IP1001C supports 3 types of power saving modes: IEEE802.3az (EEE), Smart EEE, APS (auto power saving). IP1001C also provides IEEE 1588 stamp function for precision time application. In addition, IP1001C have a built-in high efficiency switching regulator, this feature minimizes the power dissipation from the power conversion, simplifies the power plane and reduces the system cost.

IP1001C also supports 3.3V/2.5V/1.8V, and DDR for RXCLK timing, TXCLK and RXCLK delay option for RGMII, This feature allows IP1001C to adapt to different chips seamlessly and get the EMI lower when needed.

IP1001C supports useful tools to assist user in designing, tools included the loopback mode, RX counter, and CRC counter, etc.