Automotive Ethernet Bridge ICs

More and more road vehicles now have on-board connectivity, equipping them with internet and cellular access, and allowing information to be shared among on-board systems and devices and with external systems and services. On top of this, low latency communications are essential for advanced driver assistance systems (ADAS) and autonomous driving technologies. These developments all require more complex automotive communication systems supported by reliable transmission standards with real-time data delivery. The Ethernet TSN standard was developed expressly to meet these needs.
TC956x Series, that are an Ethernet bridge IC for an next generation of in　the　car network system, are the products
which supports Ethernet AVB/TSN to be performed the high speed and synchronous network system for Automotive.

An automotive Ethernet bridge IC connects a host processor or SoC to an in-vehicle Ethernet network and supports the interfaces and timing functions required for high-speed automotive communications. Toshiba’s TC956x series supports Ethernet AVB/TSN for applications that require synchronized, low-latency data delivery, including IVI and telematics systems.

Automotive Ethernet is used as vehicle networks move toward higher-bandwidth and lower-latency communications. Toshiba’s TC956x lineup supports AVB/TSN Ethernet and provides host connectivity through interfaces such as PCIe, with the TC9563 adding two Ethernet ports capable of up to 10Gbps and PCIe Gen3 switch connectivity for a host SoC and additional PCIe devices.

This figure shows the roadmap of Automotive Ethernet Bridge ICs

Automotive Ethernet Bridge ICs FAQs

What is an automotive Ethernet bridge IC?

An automotive Ethernet bridge IC connects a host processor or SoC with an automotive Ethernet network. Toshiba’s TC956x series supports Ethernet AVB/TSN and provides interfaces that allow audio, video, and data to move between the host system and the in-vehicle network.

Why is Ethernet used in automotive networks?

Vehicle systems increasingly need to share larger amounts of data with predictable timing. Toshiba identifies low-latency communication as important for advanced driver assistance systems and autonomous-driving technologies, while IVI and telematics also require higher-speed data exchange. Automotive Ethernet provides a standards-based path for these higher-bandwidth, real-time communications.

What is TSN in automotive Ethernet?

Time-Sensitive Networking (TSN) refers to Ethernet standards that support time-aware and predictable data delivery. Toshiba’s automotive Ethernet bridge products support TSN standards including IEEE 802.1Qbv, IEEE 802.1Qbu, and IEEE 802.3br, helping support synchronized and low-latency in-vehicle communications.

What is the difference between Ethernet AVB and TSN on Toshiba automotive bridge ICs?

Toshiba lists support for both Ethernet AVB and TSN standards. The TC956x family supports AVB standards such as IEEE 802.1AS and IEEE 802.1Qav, while TSN support includes standards such as IEEE 802.1Qbv, IEEE 802.1Qbu, and IEEE 802.3br. The page should explain both as standards used for time-sensitive automotive Ethernet traffic.

How does a Toshiba automotive Ethernet bridge connect to the host SoC?

The connection depends on the device. Toshiba’s TC9560/TC9562 series can connect to a host through interfaces including PCIe, while the TC9563 provides PCIe Gen3 switch ports for communication with the host SoC and additional PCIe devices. The TC9563 also provides two automotive Ethernet ports with speeds up to 10Gbps.

Lineup

Product name TC9560XBG TC9560BXBG TC9562XBG TC9562AXBG TC9562BXBG

TC9563XBG*
Application Ethernet AVB/TSN bridge solution for automotive application
Functions and Feature Ethernet feature Up to 1Gbps: 1 port Up to 10Gbps: 2 ports
Host (External application) I/F PCIe® I/F [Gen2 (5GT/s), Gen1 (2.5GT/s), Endpoint, Single lane]
 - PCIe® I/F [Gen2 (5GT/s), Gen1 (2.5GT/s), Endpoint, Single lane]
 PCIe® I/F [Gen3 (8GT/s), Gen2 (5GT/s), Gen1 (2.5GT/s), Endpoint, Up to 4 lanes]
- HSIC I/F (480 Mbps) -
PCIe® switch feature - Gen3 (8GT/s), Gen2 (5GT/s), Gen1 (2.5GT/s), Port 1: Up to 2 lanes, Port 2: 1 lane
Automotive I/F Ethernet AVB [IEEE802.1AS, IEEE802.1Qav] MAC
- Ethernet TSN [IEEE802.1Qbv,
IEEE802.1Qbu, IEEE802.3br] MAC
Ethernet PHY I/F RGMII/RMII/MII RGMII/RMII/MII/SGMII

Port A: USXGMII/XFI/SGMII

Port B: USXGMII/XFI/SGMII/RGMII
Audio I/F I2S/TDM -
Peripheral I/F I2C/SPI, Quad SPI, UART, GPIO, INT I2C/SPI, UART, GPIO, INT
CPU Core Arm®Cortex®-M3
Package (Pitch) PLFBGA170 (0.65) PLFBGA120 (0.65) PLFBGA220 (0.65)
Supply Voltage (V) 1.8/3.3 for IO 1.8/2.5/3.3 for RGMII/RMII/MII 1.1 for Core 1.8/3.3 for IO 1.2 for HSIC 1.8/2.5/3.3 for RGMII/RMII/MII 1.1 for Core 1.8/3.3 for IO
1.8 for SGMII
1.8/2.5/3.3 for RGMII/RMII/MII
1.1 for Core		 1.8/3.3 for
IO 1.8 for USXGMII/XFI/SGMII/RGMII 0.9 for Core

*: New Product

TC9560/TC9562 series features

Related information

  • The TC9560/9562 series supports standards such as IEEE 802.1AS and IEEE 802.1Qav generally referred to as Ethernet-AVB, and such as IEEE 802.1Qbv, IEEE 802.1Qbu and IEEE 802.3br generally referred to as Ethernet TSN. Connected to an application processor or other SoC host, the TC9560/9562 series allows the host device to deliver audio, video, and data through the 10/100/1000 Ethernet network in an automotive environment.
  • The connection to the host is via PCIe® running at 2.5/5.0 GT/s (PCIe Gen1.0/2.0), 480 Mbps HSIC or TDM (Time Division Multiplex)/I2S for audio traffic.
  • Provides an Ethernet PHY interface selectable from SGMII, RGMII, RMII and MII.
  • The design target is to achieve a low-power mode that typically consumes 1 mW at room temperature (measured by Toshiba). The TC9560/9562 series typically takes only 100 ms to return to normal operation (measured by Toshiba) in order to meet the market need. The TC9560/9562 series is scheduled to obtain AEC-Q100 Grade 3 qualification.

TC9563 features

  • The TC9563 supports standards such as IEEE 802.1AS and IEEE 802.1Qav generally referred to as Ethernet-AVB, and such as IEEE 802.1Qbv, IEEE 802.1Qbu and IEEE 802.3br generally referred to as Ethernet TSN.
    Provides 2-port 10Gbps Ethernet PHY interface selectrable from USXGMII, XFI, SGMII, and RGMII.
  • The TC9563 has three PCIe® running at 2.5/5.0/8.0 GT/s (PCIe Gen1.0/2.0/3.0) switch ports for communications with the host SoC and connection to devices equipped with PCIe interfaces.
  • The PCIe switch part is configured with one 4-lane upstream port for connection with the host SoC and two 1-lane downstream ports for connection to devices with a PCIe interface.

Recommended product

Automotive Ethernet Bridge ICs TC9563XBG
Ethernet AVB/TSN Interface Bridge IC for Next IVI, Telematics System
Details
Automotive Ethernet Bridge ICs TC9563XBG

Applications

IVI (In-vehicle Infotainment)
Such as information sharing and reduction of power consumption are important in designing IVI. Toshiba provides information on a wide range of semiconductor products suitable for display and audio output section, video and voice input section, wireless communications section, etc., along with circuit configuration examples.
Details

Technical topics

Product

Automotive Ethernet Architectures: High-quality in-car audio with Ethernet-AVB/TSN

With In-vehicle Infotainment (IVI) and telematics systems poised to grow rapidly, the usage of Automotive Interface Bridge ICs is expected to rise significantly. Automotive systems are now becoming more sophisticated, requiring greater functionality and higher performance, while new interface standards for in-vehicle equipment have increased. To solve the interface gap between peripheral devices and systems-on-chip (SoCs), Toshiba offers both Automotive Peripheral Bridge ICs and Automotive Ethernet Bridge ICs. Toshiba's Automotive Ethernet Bridge ICs are designed to achieve the highest performance in our next generation of in car network systems by supporting Ethernet AVB/TSN to empower the high speedperformance.

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