PEB2055 datasheet(30/269 Pages) INFINEON

Part #	PEB2055

Description	ICs for Communications Extended PCM Interface Controller

PDF	269 Pages

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Manufacturer	INFINEON [Infineon Technologies AG]

Direct Link	http://www.infineon.com

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PEB 2055

PEF 2055

Functional Description

Semiconductor Group

The CFI reads periodically the control memory and uses the extracted values as pointers

to write to the upstream (read from the downstream) data memory (random access). In

the case of C/I- or signaling channel applications the corresponding data is stored in the

control memory. In order to select the application of choice, the control memory provides

a code portion.

The control memory is accessible via the

µP-interface. In order to establish a connection

between CFI time slot A and PCM-interface time slot B, the B-pointer has to be loaded

into the control memory location A.

Figure 17

EPIC®-1 Memory Structure

ITS05823

DATA

8 Bits

CODE

4 Bits

CODE

8 Bits

DATA

127

Data Memory (DM)

Control

Memory

(CM)

127

DATA

8 Bits

Data Memory (DM)

127

(CM)

Memory

Control

DATA

8 Bits

CODE

4 Bits

TxD#

RxD#

PCM

DU#

DD#

CFI

µP

Upstream

Downstream

PEB2055 Datasheet(PDF) 30 Page - Infineon Technologies AG

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