1 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, GCMAES-

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

2 Applications

• ADAS

– Radar

• Body Electronics & Lighting

– Body Control Module

– Zone Control Module

• Telematics

3 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.