DP83TC817S-Q1中文资料符合 TC-10 和 MACsec 标准且具有精密时间的汽车级 100BASE-T1 以太网 PHY数据手册TI规格书

描述 Description

The DP83TC817-Q1 device is an IEEE 802.3bw automotive Ethernet physical layer transceiver. The device provides all physical layer functions needed to transmit and receive data, and xMII interface flexibility. DP83TC817-Q1 is compliant to Open Alliance EMC and interoperable specifications over unshielded single twisted-pair cable. DP83TC817-Q1 supports OA TC-10 low power sleep feature with wake forwarding for reduced system power consumption when communication is not required.

The DP83TC817-Q1 integrates IEEE 802.1AE line rate security with authentication and optional encryption support, to secure communication over the network. The PHY supports up to 16 secure association (SA) channels with automatic SAK rollover and extended packet numbering support. DP83TC817-Q1 offers ingress classification to filter the unwanted packets & supports WAN MACsec for end-to-end security.

DP83TC817-Q1 also integrates 1588v2/802.1AS to enable highly accurate time synchronization and hardware timestamping for ADAS applications. DP83TC817-Q1 also offers precise time stamping and synchronization with encrypted PTP packets.

DP83TC817-Q1 is footprint compatible to TI’s 100BASE-T1 PHYs and 1000BASE-T1 PHYs enabling design scalability with a single board for different speeds and features.

特性 Features

IEEE 802.1AE MACsec

MACsec frame expansion: Inbuilt buffering and flow control support to handle 12 byte IPG ethernet frames

Authentication, encryption at line rate

Cipher suites: GCM-AES-XPN-128/256, GCM-AES-128/256

Secure Channel: Total 16 SAK enabling 8 Tx/Rx SC

Auto rollover support for SAK

Ingress/Egress classification for Ethertype, VLAN, DMAC: up to 8 parallel rules

Window replay protection



IEEE 802.1AS time synchronization

Highly accurate 1pps signal < +/-5 ns

Precise time stamping for MACsec encoded PTP packets

Multiple IOs for event capture and trigger



IEEE 802.3bw & OA 100BASE-T1 compliant

TC-10 compliant

< 20µA sleep current

Fast wake from sleep by retaining PHY configuration during sleep (optional)



MAC Interfaces: MII, RMII, RGMII, SGMII

Pin compatible with TI’s 1000BASE-T1 PHY

Single board design for 100BASE-T1 and 1000BASE-T1 with required BOM change



Diagnostic tool kit

Signal Quality Indication (SQI) & Time Domain Reflectometry (TDR)

Voltage, Temperature & ESD sensors



AEC-Q100 qualified for Automotive Applications:

Temperature grade 1: –40°C to +125 °C