CMX208S1 参数 Datasheet PDF下载

ISDN Dual Telephony Protocol Engine

CMX208

CONTENTS

Section

Page

1.0 Features and Applications .........................................................................1

1.1 Brief Description.........................................................................................1

1.2 Block Diagram ............................................................................................3

1.3 Signal List ...................................................................................................4

1.4 External Components.................................................................................8

1.5 General Description....................................................................................9

1.5.1 Glossary

....................................................................................10

1.5.2 Initialisation...............................................................................11

1.5.3 ISDN Interface............................................................................11

1.5.3.1 Activation.....................................................................11

1.5.3.2 De-activation or Line Disconnection .............................11

1.5.3.3 Line Failure Detection ..................................................11

1.5.3.4 Incoming Calls .............................................................11

1.5.3.5 Multiple Subscriber Numbering.....................................12

1.5.3.6 Channel Mapping.........................................................12

1.5.4 POTS Configuration..................................................................13

1.5.4.1 Configuration and Control via DTMF Keypad................13

1.5.5 POTS Operation

........................................................................15

1.5.5.1 Keypad Operation ........................................................15

1.5.5.2 Incoming POTS Calls...................................................15

1.5.5.3 Outgoing POTS Calls...................................................15

1.5.5.4 Connected Calls...........................................................16

1.5.5.5 Call Clearing ................................................................16

1.5.6 Application Programmer's Interface

........................................17

1.5.7 Hardware Description

...............................................................17

1.5.7.1 LED Status Indicators (LED1 to LED9, and ILFI)..........17

1.6 Application Notes .....................................................................................18

1.6.1 General

......................................................................................18

1.6.2 Approvals

..................................................................................18

1.7 Performance Specification.......................................................................19

1.7.1 Electrical Performance..............................................................19

1.7.1.1 Absolute Maximum Ratings..........................................19

1.7.1.2 Operating Limits...........................................................19

1.7.1.3 Operating Characteristics.............................................20

1.7.2 Packaging..................................................................................25

Note:

This product is in development: Changes and additions will be made to this

specification. Items marked TBD or left blank will be included in later issues.

Information in this data sheet should not be relied upon for final product design.

©

1999

Consumer Microcircuits Limited

©

1999

Chiron Technology Limited

2

D/208/1