PCF5083HSLASH5V2SLASHF3 datasheet(36/136 Pages) PHILIPS

36 / 136 page

1996 Oct 29

Philips Semiconductors

Objective speciﬁcation

GSM signal processing IC

PCF5083

8.5

IOM®-2 Interface

The PCF5083 includes a type of PCM Highway like digital Data and Voice interface which is also available for external

devices. It can be configured to be compatible to the IOM®-2 standard. The blocks connected to this bus inside the IC

are the Y-Port of the DSP core, the IOM®-2 master and the Audio Interface. The clock and frame synchronization signals

(DCL, FSC) are either generated internally or provided externally. Figure 13 shows the general structure of the IOM®-2

interface.

Fig.13 IOM®-2 Interface structure.

handbook, full pagewidth

MGE286

DCL

FSC

DCL

FSC

MONITOR / CI

MASTER

UNITS

IOM-2

CLOCK

GENERATION

UNIT

DETECT

NEW

IOM-2 DEVICE

EXTERNAL IOM-2 INTERFACE

FSC

DCL

CLOCK_MODE

SOYD

IO1/AEN

ACLK

AFS

ADO

ADI

SIYD

SIYCLK

SIYEN

IO1

AEN

DSP

CORE

DCL

FSC

B_IN

ACON_REG

A_IN

B_OUT

SI_INT

+ EXT_DVI flag

A_OUT

IOMEXT_EN

AUDIO

INTERFACE

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