As SMB networks and industrial backbones migrate towards Wi-Fi 6 and Multi-Gigabit speeds, the demand for switches that bridge the gap between 1G edge devices and 10G core networks has skyrocketed. The Marvell Link Street® 88E6393XA0-BXB2C000 (codenamed "Peridot") is the ideal engine for this transition.
Featuring 8 integrated Gigabit PHYs and 3 flexible 10G uplinks, this chip allows designers to build high-performance gateways and industrial switches with a minimal footprint. Combined with robust Time Sensitive Networking (TSN) support, it is a powerhouse for modern real-time applications.
Table of Contents
- 88E6321-A0-NAZ2C000 Datasheet & Key Specs
- Interface Configuration: RGMII, SerDes, and PHYs
- Software Integration: Linux DSA Driver
- Hardware Design & Package
- Conclusion
88E6393XA0-BXB2C000 Datasheet & Key Specs
The 88E6393XA0-BXB2C000 is a member of the high-end Link Street family.
- 88E6393X: Peridot Family, 11-Port Switch.
- A0: Silicon Revision.
- BXB2: Package Code (Green/RoHS).
- C000: Commercial Temperature.
Port Configuration Matrix
The defining feature of the 88E6393X is its high-bandwidth uplink capability integrated with standard access ports:
| Port Type | Quantity | Capabilities |
|---|---|---|
| Integrated PHYs | 8 | 10/100/1000BASE-T (Copper) |
| High-Speed SerDes | 3 | 10G (XFI/USXGMII), 2.5G (SGMII/2500BASE-X), 1G (SGMII) |
| Total Ports | 11 | Non-blocking architecture |
The "Peridot" Advantage: 10GbE & Multi-Gig
Unlike older generations limited to 1G uplinks, the 88E6393X supports 10 Gigabit Ethernet (10GbE).
- Application: This is perfect for Wi-Fi 6 access point aggregation where the backhaul exceeds 1Gbps, or for NAS (Network Attached Storage) switches requiring 10G connectivity to the server.
- 2.5G Support: The SerDes ports also support 2.5G, aligning perfectly with the Multi-Gigabit Ethernet ecosystem.
Price Analysis & Stock Availability
This is a high-value component often subject to allocation.
Note: Secure your supply chain. [Check Stock for 88E6393XA0-BXB2C000 at Aichiplink] to browse inventory from authorized global distributors.
Time-Sensitive Networking (TSN) Features
The 88E6393X is fully compliant with IEEE 802.1 Time Sensitive Networking (TSN) standards, making it suitable for automotive and industrial automation.
Key TSN Standards Supported
- IEEE 802.1AS: Precision Time Protocol (PTP) for sub-microsecond time synchronization.
- IEEE 802.1Qbv: Time-Aware Shaper (TAS) to schedule critical traffic flows.
- IEEE 802.1Qav: Forwarding and Queuing for Time-Sensitive Streams (Credit-Based Shaper).
Real-Time Applications in Industry 4.0
By utilizing TSN, the 88E6393X ensures that control data (like robot arm instructions) arrives with deterministic latency, even when the network is congested with video or logging data. For a deeper dive into TSN, refer to the Wikipedia article on Time-Sensitive Networking.
Software Integration: Linux DSA (mv88e6xxx)
The 88E6393X is natively supported by the Linux kernel's Distributed Switch Architecture (DSA) via the mv88e6xxx driver.
Device Tree Configuration
Integration is handled primarily through the Device Tree (DTS).
&mdio {
switch0: switch@0 {
compatible = "marvell,mv88e6190"; /* Peridot family ID */
reg = <0>;
ports {
/* Ports 1-8: Integrated GPHYs */
port@1 { reg = <1>; label = "lan1"; };
/* ... */
/* Port 9, 10, 11: 10G SerDes */
port@9 {
reg = <9>;
label = "uplink1";
phy-mode = "10gbase-r"; /* Configure as 10G XFI */
};
};
};
};
Configuring the 10G SerDes Ports
The software flexibility allows the SerDes ports (Ports 9, 10, 11) to be runtime-configured. You can switch them between SGMII (1G), 2500BASE-X (2.5G), or XFI (10G) depending on the SFP+ module inserted or the connected PHY.
Hardware Design & Package
- Package: BXB2 typically denotes a high-density BGA package.
- Thermal Design: With 3x 10G ports and 8x GPHYs active, the power dissipation is significant. A dedicated heat sink is almost always required.
- PCB Layout: Routing 10G XFI traces requires strict impedance control (typically 100Ω differential) and careful layer stack-up planning to minimize insertion loss and crosstalk. For guidelines on high-speed routing, check EEPower's High-Speed PCB Design Guide.
Conclusion
The Marvell 88E6393XA0-BXB2C000 is a cornerstone for next-generation wired networks. Its unique combination of high port density, 10G capabilities, and TSN features makes it the go-to solution for advanced Wi-Fi 6 gateways and industrial automation hubs.
Sourcing Marvell Link Street Components High-performance switch silicon is in high demand. Visit Aichiplink.com to search for 88E6393XA0-BXB2C000 and other Marvell networking solutions.
Written by Jack Elliott from AIChipLink.
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