HFC-S USB  


The HFC-S USB is not recommended for new projects.
Please contact the Sales team of Cologne Chip for further information and for a discussion about alternative components.
 

Functions

The HFC-S USB is an ISDN S/T HDLC basic rate controller for single-chip USB applications.
It is based on Cologne's innovative "passive USB" technology: As the USB protocol engine is implemented in hardware, code development for a microcontroller becomes unnecessary which leads to a shorter time-to-market. HFC-S USB only requires an external EEPROM to store the USB configuration data (USB descriptors) if the default data from the internal ROM shall not be used. As it is a single-chip solution, the S/T interface, HDLC-controllers, FIFOs and the USB interface are integrated in the HFC-S USB.
A PCM128 / PCM64 / PCM30 interface is also implemented which is able to connect to many telecom serial busses. Usually CODECs are connected to this interface. All ISDN channels (2B+1D) and the PCM interface are served fully duplex by the 8 integrated FIFOs.
The integrated 8 bit auxiliary port enables the HFC-S USB to be used as USB bridge.

 

 

Block Diagram

HFC-S USB Block Diagram

 

Features

  • single chip ISDN-S/T-controller with B- and D-channel HDLC support

  • integrated S/T interface

  • independent read and write HDLC-channels for two ISDN B-channels, one ISDN D-channel and one PCM timeslot (or E-channel)

  • B1- and B2-channel transparent mode independently selectable

  • integrated FIFOs for B1, B2, D and PCM (or E)

  • FIFO size: 128 bytes per channel and direction

  • 56 KBit/s restricted mode for U.S. ISDN lines selectable by software

  • full I.430 ITU S/T ISDN support in TE and NT mode

  • PCM128 / PCM64 / PCM30 interface configurable to interface MITEL STTM bus (MVIPTM), Siemens IOM2TM or GCITM for interface to U-chip or external CODECs

  • integrated full speed 12 MBps USB interface (USB specification 1.1 compliant)

  • no microcontroller, no firmware required

  • integrated auxiliary port (USB bridge)

  • CMOS technology

  • case PQFP 48, RoHS compliant

 

Applications

 

 

Linux Driver

Generic Linux drivers for HFC-S USB are available upon request.

 

 

Evaluation board of HFC-S USB   

Evaluation Kit

Contact us for an evaluation kit for HFC-S USB.

 

Datasheet

Get Datasheet

 

 

Copyright © 2007 Cologne Chip
The ISDN Chip Company!		 Last Modified: 22/05/2007