One instance of the 3-port Gigabit
Ethernet Switch (CPSW) subsystem provides Ethernet packet communication for the
device. The CPSW subsystem provides the following main features:
- Two Ethernet ports (Port
1/Port 2) with selectable MII, RMII, and RGMII interfaces and a single
internal Communications Port Programming Interface (CPPI) port (Port 0)
- Synchronous 10/100/1000 Mbit
operation with Flexible logical FIFO-based packet buffer structure
- Full duplex mode
supported in 10/100/1000 Mbps modes
- Half-duplex mode
supported in 10/100 Mbps modes only
- Maximum frame size of 3024
bytes
- Management Data Input/Output
(MDIO) module for PHY Management with Clause 45 support
- Programmable interrupt
control with selected interrupt pacing
- One CPDMA CPPI 3.0 DMA Host
Interface (Port 0)
- Emulation Mode, Digital
loopback, and FIFO loopback modes supported
- RAM Error Detection and
Correction (SECDED)
- Eight priority level Quality
Of Service (QOS) support (802.1p)
- Support for Audio/Video
Bridging (P802.1Qav/D6.0)
- Support for IEEE 1588 Clock
Synchronization (2008 Annex D, Annex E and Annex F)
- DSCP Priority Mapping (IPv4
and IPv6)
- Energy Efficient Ethernet
(EEE) support (802.3az)
- Non-Blocking switch fabric
with Flow Control Support (802.3x) and Wire rate switching (802.1d)
- Time Sensitive Network (TSN)
Support
- IEEE 802.1Qbv
Enhancements for Scheduled Traffic
- Address Lookup Engine (ALE)
with 512 ALE table entries
- EtherStats and 802.3 Stats
Remote Network Monitoring (RMON) statistics gathering (per port
statistics)
- Support for Ethernet MAC
transmit to MAC receive digital loopback mode