<![CDATA[
<!-- ##start## -->
<NAME="top">
<table WIDTH="100%">
<tr>
<td ALIGN=LEFT VALIGN=middle WIDTH="15%"> </td>
<td ALIGN=LEFT VALIGN=middle WIDTH="85%">
<P>
<table BORDER=0 CELLSPACING=0 CELLPADDING=0 COLS=3 WIDTH="100%">
<tr>
<td BACKGROUND="bar-left.jpg" width="25" HEIGHT=60> </TD>
<td BACKGROUND="bar-middle.jpg" HEIGHT=60><FONT FACE="Arial,Helvetica"><FONT SIZE="+1"><FONT COLOR="#FFFFFF">HFC-S2M</FONT></FONT></FONT></TD>
<td BACKGROUND="bar-right.jpg" width="25" HEIGHT=60> </TD>
</table>
<P>
<H3>
The product name of the HFC-S2M chip has been changed.<BR>
As S2M is the German acronym for the ISDN Primary Rate Interface, which is internationally known as E1, Cologne Chip decided to rename the IC to <A HREF="frame-hfc-e1.htm" TARGET="_top">HFC-E1</A>.</H3>
<BR>
<P><H3>
Functions</H3>
The HFC-S2M is a HDLC B- and D-channel controller with integrated S2M interface.
It can be used for ISDN primary rate lines. All channels are served
fully duplex by deep FIFOs. Also implemented is a PCM128/PCM64/PCM30 highway
interface (which is able to connect to many telecom serial busses) and an universal external
bus interface.
<BR><BR>
<BR>
<H3>
Block Diagram</H3>
<img SRC="hfc-s2m.gif" ALT="HFC-S2M Block Diagram" height=418 width=700><BR>
<BR>
<BR>
<H3>
Features</H3>
<UL TYPE=SQUARE>
<li>
single chip ISDN-S2M-controller with B- and D-channel HDLC support</li><br><br>
<li>
integrated E1/T1 (S2M) interface</li><br><br>
<li>
full I.431 ITU S2M ISDN support in TE and NT mode for 3V - 5V power supply</li><br><br>
<li>
32 independent read and write HDLC-channels <br>
for e.g. 30 ISDN B-channels, 1 ISDN D-channel and 1 timeslot on the PCM interface
</li><br><br>
<li>
B-channel transparent mode independently selectable</li><br><br>
<li>
up to 64 FIFOs; FIFO-size configurable</li><br><br>
<li>
each FIFO can be assigned to an arbitrary channel of the S2M or PCM interface</li><br><br>
<li>
max. 31 HDLC frames (with 128k or 512k RAM) and 15 HDLC frames (with 32k
RAM) per FIFO</li><br><br>
<li>
1 - 8 Bit processing for subchannels selectable</li><br><br>
<li>
56 KBit/s restricted mode for U.S. ISDN lines selectable by software</li><br><br>
<li>
B-channels for higher data rate combinable</li><br><br>
<li>
PCM128 / PCM64 / PCM30 interface configurable to interface MITEL ST<sup>TM</sup> bus (MVIP<sup>TM</sup>)
or Siemens IOM2<sup>TM</sup> and Motorola GCI<sup>TM</sup> (bearer slots supported only) for inter-chip connection (e.g. external CODECs)</li><br><br>
<li>
H.100 data rate support</li><br><br>
<li><img src="pci-logo.gif" width="100" height="30" hspace="10" align="right">
universal external bus interfacce configurable into PCI bus, ISA-PnP, PCMCIA
or microprocessor interface; hot swap for Compact PCI supported</li><br><br>
<li>
multiparty audio conferences switchable</li><br><br>
<li>
DTMF detection on all B-channels</li><br><br>
<li>
timer with interrupt capability</li><br><br>
<li>
CMOS technology 3V-5V</li><br><br>
<li>
PQFP 144 case</li><br><br>
</UL>
<BR>
<BR>
<H3>
Applications</H3>
<UL TYPE=SQUARE>
<li>
ISDN PRI terminal adapters</li><br><br>
<li>
<a href="a-pabx.htm">ISDN PABX for PRI</a></li><br><br>
<li>
ISDN LAN routers for PRI</li><br><br>
<li>
ISDN least cost routers for PRI</li><br><br>
<li>
ISDN test equipment for PRI</li><br><br>
</UL>
<BR>
<BR>
<H3>
Datasheet</H3>
<A HREF="main-datasheets.htm#hfc-s2m">Get Datasheet</A>
<BR>
<H3><P>
<!-- ##end## -->
<HR>
<P ALIGN=CENTER>
[<A HREF="frame-news.htm">News</A>] [<A HREF="frame-overview.htm">Overview</A>]
[<A HREF="frame-chips.htm">ISDN Controllers</A>] [<A HREF="frame-datasheets.htm">Datasheets</A>]
<BR>
[<A HREF="frame-applications.htm">Applications</A>] [<A HREF="frame-software.htm">Driver Software</A>]
[<A HREF="frame-transformers.htm">Transformers</A>] [<A HREF="frame-approval.htm">ISDN Type Approval</A>]
<BR>
[<A HREF="frame-distributors.htm">Distributors</A>] [<A HREF="frame-contact.htm">Contact</A>]
[<A HREF="../../framestart.htm">Home</A>]
</P>
<HR>
<BR>
<MAP NAME="navigation"><AREA SHAPE="rect" coords="18,72,86,88" href="../../framestart.htm" target="_top"><AREA SHAPE="rect" coords="14,68,148,93" HREF="mailto:info@CologneChip.com"><AREA SHAPE="rect" coords="120,18,148,50" href="#top" target="_self"></MAP>
<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 COLS=2 WIDTH="100%">
<TR>
<TD VALIGN="bottom"><FONT FACE="Arial,Helvetica"><FONT SIZE=-2>Copyright © 2000 Cologne
Chip</FONT></FONT></TD>
<TD><IMG SRC="navigation.jpg" width="160" height="108" ALIGN="right" BORDER=0 USEMAP="#navigation"></TD></TR>
</TABLE>
</td></tr>
</table>
]]>