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2-9. USB 2.0 EHCI Controller
• Internal Rate Matching Hub to support USB 1.1 to 2.0 devices
• Four Ports multiplexed with xHCI controller
2-10. Audio Controllers
2-10.1 Low Power Engine (LPE) Audio
LPE is a complete audio solution based on an internal audio processing engine, which
includes three I2S output ports. See Chapter 19, “Low Power Engine (LPE) for Audio
(I2S)” for more details.
LPE supports:
• MP3, AAC, AC3/DD+, WMA9, PCM (WAV)
Note: Codecs supported depend on software and may be different.

2-10.2 Intel High Definition Audio (Intel® HD Audio)
See Chapter 18, “Intel® High Definition Audio” for more details.
• Four in + four out streams (Only 3 used)
• One stream for each DDI, available for HDMI and DP
• No wake on audio (modem) support

Dept : #41B研發服務部 By: Engineering