SPC58NH84C3 datasheet(14/147 Pages) STMICROELECTRONICS

14 / 147 page

Description

SPC58EHx, SPC58NHx

14/147

DS12304 Rev 5

VLAN tag-based: Perfect match and Hash-based filtering. Filtering based on

either outer or inner VLAN tag is possible.

Layer 3 and Layer 4-based: TCP or UDP over IPv4 or IPv6

Extended VLAN tag based filtering with 16 filters

– IEEE 802.1Q VLAN tag detection

–

DMA block features:

– 64-bit data transfers

– 2-channel Transmit and Receive engines

– Separate DMA channel in the Transmit path for each queue

– Single or multiple DMA channels for any number of queues in Receive path

– Optimization for packet-oriented DMA transfers with packet delimiters

– Byte-aligned addressing for data buffer support

– Dual-buffer (ring) descriptor support

– Descriptor architecture to allow large blocks of data transfer with minimum

CPU intervention (each descriptor can transfer up to 32 KB of data)

–

Audio and video features:

Ethernet0 can be used in Audio Video (AV) mode, and the supported features are

compliant to the industry standards for AV traffic:

– Separate channels or queues for AV data transfer in 100 Mbps

– Up to 2- queues on the Receive paths for AV traffic and 1-queue on the

Transmit path for AV traffic

– IEEE 802.1-Qav specified credit-based shaper (CBS) algorithm for Transmit

channels

•

One ethernet controller 10/100/1000 Mbps (Ethernet 1)

Features changes on top of Ethernet 0:

–

RGMII PHY interface with DoS on TX clock

–

Transaction layer supports 3-TX queues and 3 RX queues

–

DMA supports 3 TX and 3-RX channels

–

Checksum offload engine on TX Queue0 only

–

16 KB each for both TX and RX FIFOs

–

2 AV queues on TX and 3 AV queues on RX

–

MAC does not support half duplex operations

–

Flexible Receive Parsing based filtering mode:

Programmable lookup table based flexible Parser for filtering all incoming packets

as per the programmable instructions in the memory. partial/group DA/SA match

(bit mask instead of byte mask). partial/group VLAN match (Only perfect match in

fixed/register filter) link DA/SA filter with VLAN filter; fixed/register filter does not

give that flexibility (sequential links) can do any of the fixed/register filter functions;

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