AM263Px MCU+ SDK: Dual EMAC and Switch

| AM263Px MCU+ SDK 26.00.00 |

Dual EMAC and Switch

# Introduction

The ICSS FIRMWARES serves as example to implement various network functionalities. Package includes source release for DUAL EMAC and basic Switch firmwares.

# DUAL_EMAC

ICSS DUAL EMAC FIRMWARE is a single port Ethernet MAC (Media Access Control) i.e. Layer 2 of OSI Model. It implements a 2 port ethernet mac supporting 10/100 Mbps. DUAL EMAC FIRMWARE is standardized to IEEE 802.1 Ethernet Standards. Primary use case of the protocol is to demonstrate basic ethernet functionality via both PRU cores on 10/100 Mbit Ethernet cable. ICSS DUAL EMAC FIRMWARE can be used independently on two PRU’s to implement two independent MAC’s with two different MAC addresses and two different IP addresses. To provide an analogy, this is somewhat similar to a two port Ethernet PCIe NIC card on a PC.Ethernet interface in this case is available along with Host processor on a single SoC. Following are high level features:

Requirements | Remarks
--- | ---
1 ms buffering per port | Supported
Host IRQ | Supported
Ethernet QoS | With 2 queues instead of 8. So, it is not a standard Ethernet QoS implementation.
Statistics | Supported
Storm Prevention | Supported
Promiscuous Mode | Experimental Feature which is to be tested extensively
TTS (Time Triggered Send) | Not Supported
Error Handling | Supported
Multicast filtering | Supported
VLAN filtering | Experimental Feature which is to be tested extensively

# SWITCH

ICSS SWITCH FIRMWARE is a three port learning Ethernet switch i.e. Layer 2 of OSI Model. It implements a 2 port cut through ethernet switch supporting at 100 Mbps. SWITCH FIRMWARE is standardized to IEEE 802.1 Ethernet Standards. The primary use case of the protocol is to use Ethernet to automate applications which require short cut-through latency and low hardware costs. ICSS SWITCH FIRMWARE uses two PRU to implement three port Ethernet switch with one single MAC and IP address. To provide an analogy, this is somewhat standard network switch only here the network functionality is available to the host core within the single SOC. The following are the high level features it supports:

Requirements | Remarks
--- | ---
Cut-Through | Supported
Store and Forward | Supported
1 ms buffering per port | Supported
Host IRQ | Supported
Ethernet QoS | With 4 queues instead of 8. So, it is not a standard Ethernet QoS implementation.
802.1 learning switch | Supported
Statistics | Supported
Queue-Contention Handling on each port | Supported
Three-Port Switch | Supported
Storm Prevention | Not Supported
Error Handling | Supported