peb20560 Infineon Technologies Corporation, peb20560 Datasheet - Page 359

• Manufacturer Part Number: peb20560
• Description: Dsp Oriented Pbx Controller Doc
• Manufacturer: Infineon Technologies Corporation

6.5
The LNC can be used:
• For inter DOC communication when multiple DOCs are cascaded
• For signaling, if externally connected to IOM-2 or PCM interfaces
• As a general purpose HDLC Controller (up to 8.192 Mbit/s).
The high speed data rate may be handled by an external DMA controller.
6.6
The UART can be used for:
• System tests in the development phase
• Field tests
• Program download (i.e. via a V.24 interface)
6.7
The CHI signal in addition to the IOM-2 signals can be used for indication to any
connected Layer-1 IC that the data sent downstream is not IOM-2 compatible data. By
the use of CHI signal a proprietary data channel can be implemented.
6.8
In case of connecting 2 OCTAT-P or four QUAT-S to a 4.096 Mbit/s IOM-2 interface
(extended IOM-2 specification) a second FSC, delayed by 62.5 µs, is provided.
It synchronizes the Layer-1 ICs connected to the time-slots 32 to 63.
Layer-1 ICs connected to the time-slots 0 to 31 use the standard FSC signal.
6.9
1. Activation (A disactivation by software is not possible after its activation)
2. Triggering both Watch-Dog Registers by software
3. Flag Reset Indication if software triggering fails; however DOC remains unaffected
6.10
The integrated DSP (OAK) is supposed to execute routines for tone and voice
processing such as:
• Tone generation and recognition
• DTMF transmitter and receiver
• Music on hold
• Conferencing
• Voice mail and voice recording
Semiconductor Group
(i.e. for DOC selection to generate REFCLK)
The max. length of the transmit line may reach up to 2 m.
Local Network Controller (SACCO-B1 as LNC)
UART Applications
IOM
Use of FSCD
Watch-Dog Activation
Tone and Voice Processing
®
-2 Channel Indication Signal (CHI)
6-9
Applications
PEB 20560
2003-08