HFC-SUSB Cologne Chip AG, HFC-SUSB Datasheet - Page 6

• Manufacturer Part Number: HFC-SUSB
• Description: Isdn S/t HDLC Basic Rate Controller
• Manufacturer: Cologne Chip AG

863 C EC2
Features














1
The HFC-S USB is an ISDN S/T HDLC basic rate controller for single-chip USB applications.
The S/T interface, HDLC-controllers, FIFOs and the USB interface are integrated in the HFC-S USB. It
only requires an external EEPROM to store the USB configuration data if the default data from the
internal ROM is not used. The USB protocol is implemented in hardware. Code development for a
microcontroller is not necessary. A PCM128 / PCM64 / PCM30 interface is also implemented which can
be connected to many telecom serial busses. CODECs are usually 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.
HDLC controllers are implemented in hardware so there is no need to implement HDLC on the host
computer.
& _V ("
single chip ISDN-S/T-controller with B- and D-channel HDLC support
integrated S/T interface
independent read and write HDLC-channels for 2 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; up to 7 HDLC frames per FIFO
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 ST
Siemens IOM2
integrated full speed 12 MBps USB interface (USB specification 1.1 compliant)
no microcontroller, no firmware required
integrated auxiliary port (USB bridge)
CMOS technology
PQFP 48 case
General description
TM
or GCI
TM
for interface to U-chip or external CODECs
TM
bus (MVIP
Cologne
Chip
TM
:e\i " !
),