AL-C100-WDE Codec IP

The AL-C100-WDE is the first WiGig/Wi-Fi IEEE 802.11ad WDE Codec designed to implement the Wireless Display Extension Protocol Adaptation Layer (WDE PAL) of the WiGig-(IEEE 802.11 ad) standard. The AL-C100-WDE is a state-of-the-art hardware Intellectual Property solution developed by Allegro DVT. It allows removing all cables and offers high quality/low latency over-the-air transmission of audio/video signals. It is used to build both WDE TX and WDE RX devices and can be configured for use either as a WDE Source (“TX” or “encoder”) or as a WDE Sink (“RX” or “decoder”). It easily interfaces with a DisplayPort or HDMI sink device and a WiGig MAC TX interface when configured in TX mode, and with a WiGig MAC RX interface and a DisplayPort/HDMI source device when configured in RX mode.

In TX configuration, it performs video H.264 encoding, HDCP encryption (content protection), audio/video data encapsulation, and outputs WDE packets to the TX WiGig MAC.

In RX configuration, it performs audio/video WDE packet parsing, HDCP decryption, video H.264 decoding, audio/video synchronization, and outputs audio/video content to the DP/HDMI source device.

Key advantages

• High-performance High-quality H.264 video encoding and decoding,
• Ultra-low latency, in compliance with the WDE specification,
• HDCP 2.x encryption and decryption (for content protection),
• Audio/video data packetization and parsing,
• Low power consumption,
• Fast and easy SoC integration

Block diagram

Features

Supported standards

• WiGig/Wi-Fi IEEE 802.11ad WDE PAL specification

Advanced features:

• HDCP encryption/decryption
• A/V synchronization

Supported tools for Encoding/Decoding :

• H.264/AVC CAVLC 4:4:4 Intra profile
• YCbCr 4:4:4, 8-bit
• Intra4x4, Intra8x8 and Intra16x16 prediction modes
• 4×4 and 8×8 Transform
• Flat and default scaling list
• CAVLC, Lossless and PCM coding modes
• Raw data bypass
• Compressed output bit rate up to >1Gbps
• Ultra low glass-to-glass latency
• VBR rate control

Error resilience

• Supports Error resilience and Error concealment of missing or erroneous packets

Interface

• AMBA APB interface for CPU programming
• AMBA AXI interface for the external memory

Deliverables

• Specification, validation and delivery documents
• Bit accurate executable software reference model
• C control software source code
• RTL source code
• Verification/Integration test suite