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USB OTG transceiver allows DRD operation

Posted: 07 Feb 2005 ?? ?Print Version ?Bookmark and Share

Keywords:micrel semiconductor? mic2555? usb otg transceiver? transceiver?

Micrel Semiconductor's MIC2555 USB OTG transceiver is engineered to enable intelligent self-powered devices to communicate on a peer-to-peer basis with other USB and USB OTG enabled devices.

Designed to perform as a PHY for USB Serial Interface Engines (SIE), the MIC2555 is compatible with a wide variety of stand-alone OTG SIE chips, OTG IP cores (used in ASIC and COT designs) and ASSPs.

The new transceiver is fully compliant to USB-IF's USB Specification 2.0 and the OTG Supplement Rev 1.0a, for low speed and full speed operation, and allows dual-role device (DRD) operation via an I?C based controller interface. The controller's robust register set permits full control over bus and interface activity for transacting Session Request Protocol (SRP) and Host Negation Protocol (HNP) sequences.

Messaging between Host and Target devices can utilize any of 2 signaling methods: USB or UART, and MIC2555 permits audio signaling on its D+, D- and ID lines in full support of analog car kit applications, Micrel explained.

Rated for operation offer the full industrial temperature range, the MIC2555 is offered in a 4-by-4mm 24-pin MLF package.




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