Product Summary

The RC82540EM is a Gigabit Ethernet Controller. It is a single, compact component with an integrated Gigabit Ethernet Media Access Control (MAC) and physical layer (PHY) functions. For desktop, workstation and mobile PC Network designs with critical space constraints, the Intel RC82540EM allows for a Gigabit Ethernet implementation in a very small area that is footprint compatible with current generation 10/100 Mbps Fast Ethernet designs

Parametrics

RC82540EM absolute maximum ratings: (1)VDD, DC supply voltage: -0.3 to 7.0 V; (2)VIN, Input voltage: -1.0 to VDD + 0.3 V; (3)IIN, DC input pin current: -10 to 10 mA; (4)Tstg, Storage temperature: -40 to 125℃.

Features

RC82540EM features: (1)Low-latency transmit and receive queues; (2)IEEE 802.3×-compliant flow-control support with software-controllable thresholds; (3)Caches up to 64 packet descriptors in a single burst; (4)Programmable host memory receive buffers (256 B to 16 KB) and cache line size (16 B to 256 B); (5)Wide, optimized internal data path architecture; (6)64 KB configurable Transmit and Receive FIFO buffers; (7)Transmit and receive IP, TCP, and UDP checksum off-loading capabilities; (8)Transmit TCP segmentation; (9)Advanced packed filtering; (10)Jumbo frame support up to 16 KB; (11)IEEE 802.1q VLAN support with VLAN tag insertion, stripping and packet filtering for up to 4096 VLAN tags; (12)Descriptor ring management hardware for transmit and receive; (13)Interrupt coalescing (multiple packets per interrupt); (14)Jumbo frame support.

Diagrams

RC82540EM block diagram

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