Iei-integration PICOe-GM45A Instrukcja Użytkownika Strona 44

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PICOe-GM45A Half-Size CPU Card
Page 44
Figure 2-14: Ethernet Controllers
The Intel® PC82574L controller is a low power 10/100/1000 Mbps PCIe GbE controller
that is ideal for non-managed platforms. Some of the Intel® PC82574L features are listed
below.
2 Gbps peak bandwidth per direction
PCI Express Rev 1.0a specification
Wide, pipelined internal data path architecture
Optimized transmit (Tx) and receive (Rx) queues
32 KB configurable Rx and Tx first-in/first-out (FIFO)
IEEE 802.3x*-compliant flow-control support with software controllable pause
times and threshold values
Programmable host memory Rx buffers (256 B-16 KB)
Descriptor ring management hardware for Tx and Rx
Mechanism for reducing interrupts from Tx/Rx operations
Integrated PHY for 10/100/1000 Mbps (full- and half-duplex)
IEEE 802.3ab* auto-negotiation support
IEEE 802.3ab PHY compliance and compatibility
Tx/Rx IP, TCP, and UDP checksum offloading
Tx TCP segmentation
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