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USB 2.0 PHY For On-The-Go Controller
The Arasan ACS-AIP-USB2 USB 2.0 PHY IP core is a Transceiver compliant with the USB 2.0 Transceiver Macrocell Interface Plus (UTMI+) level 3 specification, for use with host, embedded host, On-the-Go (OTG) and function controllers. Its high speed, mixed-signal circuitry supports 480 Mb/s USB 2.0 High Speed (HS) traffic, while remaining backward compatible with USB 1.1 legacy protocol for 12Mb/s Full Speed (FS) traffic and 1.5Mb/s Low Speed (LS) traffic.
The USB 2.0 PHY performs low-level protocol and signaling functions. While transmitting, the PHY serializes data, generates Synchronize (SYNC) and End-of-Packet (EOP) packet fields, and performs bit stuffing and Non-Return-to-Zero Inverted (NRZI) encoding. While receiving data, the PHY recovers incoming data and clock, de-serializes data, strips SYNC and EOP fields, and performs bit unstuffing and NRZI decoding.
The USB 2.0 PHY is a full-featured on-chip physical transceiver. It has Electro Static Discharge (ESD) protection and fully supports all OTG and host functionality. An optional charge pump generates a 5V supply to power external USB peripherals while in host mode. On-board clock generation and PLL blocks provide for accurate, high-speed data transmission from and to the transceiver. When this USB PHY core is used, a minimal number of external components is required.
The USB 2.0 PHY performs low-level protocol and signaling functions. While transmitting, the PHY serializes data, generates Synchronize (SYNC) and End-of-Packet (EOP) packet fields, and performs bit stuffing and Non-Return-to-Zero Inverted (NRZI) encoding. While receiving data, the PHY recovers incoming data and clock, de-serializes data, strips SYNC and EOP fields, and performs bit unstuffing and NRZI decoding.
The USB 2.0 PHY is a full-featured on-chip physical transceiver. It has Electro Static Discharge (ESD) protection and fully supports all OTG and host functionality. An optional charge pump generates a 5V supply to power external USB peripherals while in host mode. On-board clock generation and PLL blocks provide for accurate, high-speed data transmission from and to the transceiver. When this USB PHY core is used, a minimal number of external components is required.
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Block Diagram of the USB 2.0 PHY For On-The-Go Controller
