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DM504 Datasheet(PDF) 164 Page - Texas Instruments |
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DM504 Datasheet(HTML) 164 Page - Texas Instruments |
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164 / 211 page  164 DM504 SPRS977A – NOVEMBER 2016 – REVISED JANUARY 2017 www.ti.com Submit Documentation Feedback Detailed Description Copyright © 2016–2017, Texas Instruments Incorporated • Internal Loopback mode for self-test • Maskable interrupts, two interrupt lines • Two clock domains (CAN clock/Host clock) • Parity/ECC support - Message RAM single error correction and double error detection (SECDED) mechanism • Local power-down and wakeup support • Timestamp Counter For more information, see section MCAN in chapter Serial Communication Interfaces of the device TRM. 6.10.13 GMAC_SW The three-port gigabit ethernet switch subsystem (GMAC_SW) provides ethernet packet communication and can be configured as an ethernet switch. It provides the reduced gigabit media independent interface (RGMII), and the management data input output (MDIO) for physical layer device (PHY) management. The GMAC_SW subsystem provides the following features: • Two Ethernet ports (port 1 and port 2) with RGMII interfaces plus internal Communications Port Programming Interface (CPPI 3.1) on port 0 • Synchronous 10/100/1000 Mbit operation • Wire rate switching (802.1d) • Non-blocking switch fabric • Flexible logical FIFO-based packet buffer structure • Four priority level Quality Of Service (QOS) support (802.1p) • CPPI 3.1 compliant DMA controllers • Support for Audio/Video Bridging (P802.1Qav/D6.0) • Support for IEEE 1588 Clock Synchronization (2008 Annex D and Annex F) – Timing FIFO and time stamping logic embedded in the subsystem • Device Level Ring (DLR) Support • Energy Efficient Ethernet (EEE) support (802.3az) • Flow Control Support (802.3x) • Address Lookup Engine (ALE) – 1024 total address entries plus VLANs – Wire rate lookup – Host controlled time-based aging – Multiple spanning tree support (spanning tree per VLAN) – L2 address lock and L2 filtering support – MAC authentication (802.1x) – Receive-based or destination-based multicast and broadcast rate limits – MAC address blocking – Source port locking – OUI (Vendor ID) host accept/deny feature – Remapping of priority level of VLAN or ports • VLAN support – 802.1Q compliant • Auto add port VLAN for untagged frames on ingress • Auto VLAN removal on egress and auto pad to minimum frame size • Ethernet Statistics: – EtherStats and 802.3Stats Remote network Monitoring (RMON) statistics gathering (shared) – Programmable statistics interrupt mask when a statistic is above one half its 32-bit value |
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