peb20590 Infineon Technologies Corporation, peb20590 Datasheet - Page 24

• Manufacturer Part Number: peb20590
• Description: Vip, Vip-8 Versatile Isdn Port
• Manufacturer: Infineon Technologies Corporation

PRELIMINARY
Data Sheet
3
The VIP provides four types of external interfaces: U
interfaces, an IOM-2000 interface and a JTAG boundary scan test interface. These
interfaces are described in the following sections:
3.1
The VIP provides the following system interfaces:
• U
• S/T line interfaces
• IOM-2000 interface
• JTAG boundary scan test interface
3.2
The functionality is compatible to OCTAT-P (PEB 2096). 1:1 transformers are required.
3.2.1
The U
U
The frame structure of the data transfer between the exchange (PBX, LT) and the
terminal (TE) is depicted in
• The PBX starts a transmission every 250 µs (burst repetition period).
• A frame transmitted by the exchange (PBX) is received by the terminal (TE) after a
• The terminal waits a minimum guard time (
PN
The VIP provides up to 8 independent U
terminals or DECT base stations.
The PEB 20590 provides up to 4 independent S/T line interfaces (up to 8 for PEB
20591). They can be operated in subscriber mode (LT-S) or trunk mode (LT-T).
– Up to three VIPs can be connected to one DELIC via the IOM-2000 interface.
– VIP’s transceivers are initialized and controlled by the DELIC.
– The VIP provides a standard test interface according to IEEE 1149.1.
– User-specific instructions are implemented to generate periodic test patterns on the
– The TAP controller has an own reset input.
given propagation delay
frame is transmitted from the terminal to the PBX.
PN
is always point-to-point.
line.
PN
line interfaces
interface uses a ping-pong technique for 2B+D data transmission over the line.
Interface Description
Overview of Interfaces
U
Frame Structure
PN
Line Interface
t
Figure
d
.
9.
16
PN
t
g
line interfaces for connection of ISDN
= 5.2 µs) while the line clears. Then a
PN
line interfaces, S/T line
Interface Description
PEB 20590
PEB 20591
2001-03-01