AN39: USB Interface Description
1 Introduction
6
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HC15_USB_Interface_v02 Page 6 of 28 2007-04-05
Confidential / Preliminary
1 Introduction
This document describes HC15’s USB interface. Its purpose is to support application engineers
in developing a USB host driver for the module’s USB interface.
1.1 Related Documents
Documents supplied with your Siemens cellular engine
[1] AT Command Set supplied with your Siemens cellular engine
[2] Hardware Interface Description supplied with your Siemens cellular engine
[3] Release Notes supplied with your Siemens cellular engine
[4] Getting Started with HC15
Other related documents
[5] Universal Serial Bus Specification Revision 2.0 April 27, 2000,
[6] USB Class Definitions for Communication Devices Version 1.1 January 19, 1999
1.2 Abbreviations
Abbreviation Description
CDC ACM Communication Device Class Abstract Control Model
GPRS General Packet Radio Service
HSDPA High-Speed Downlink Packet Access
ME Mobile Equipment
MO Mobile Originated
MT Mobile Terminated
SE0 Single ended 0
SOF packet Start of Frame packet
URC Unsolicited Result Code
USB Universal Serial Bus
VCOM port Virtual Communication port
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