D6571E Просмотр технического описания (PDF) - Unspecified

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D6571E

EASYTAD™ Chip for an All- Digital Telephone Answering Machine with Flash Memory Interface

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D6571E Data Sheet

TABLE OF CONTENTS:

GENERAL DESCRIPTION....................................................................................................................................................................5

FEATURES ........................................................................................................................................................................................... 5

CHIP CONFIGURATION.................................................................................................................................................................... 6

ADDITIONAL SYSTEM COMPONENTS (supplied by the customer according to DSP Group’s specifications).............. 6

PIN DESCRIPTIONS............................................................................................................................................................................ 7

FUNCTIONAL DESCRIPTION............................................................................................................................................................9

HOST Interface..................................................................................................................................................................................... 9

Voice Message Recording Incoming and Outgoing Messages ................................................................................................... 9

Digital Voice-Activated Recording (VOX)....................................................................................................................................... 9

Automatic Gain Control...................................................................................................................................................................... 9

Message Playback............................................................................................................................................................................... 9

Offset and FLEXISPEECH™ .............................................................................................................................................................. 9

Message Deletion.............................................................................................................................................................................. 10

Message Time Stamp ........................................................................................................................................................................ 10

Volume Control................................................................................................................................................................................... 10

Tone Generation................................................................................................................................................................................. 10

DTMF Detection................................................................................................................................................................................ 10

Call Progress Tone (CPT) Detection............................................................................................................................................... 10

Caller Identification (CID and CWCID) .......................................................................................................................................... 10

Caller Alert Signal (CAS) Detection................................................................................................................................................ 10

Sensitivity Control............................................................................................................................................................................. 10

Speed Dial Telephone Number Storage.......................................................................................................................................... 10

Non-Erasable Storage........................................................................................................................................................................ 10

General Purpose Storage................................................................................................................................................................... 10

Self Test and Initialization ................................................................................................................................................................ 11

Reports ................................................................................................................................................................................................ 11

Voice Prompt Generation.................................................................................................................................................................. 11

Near End Echo Cancellation............................................................................................................................................................. 11

Full Duplex Digital SpeakerPhone ................................................................................................................................................... 11

Power Down Mode ............................................................................................................................................................................ 11

OPERATIONAL DESCRIPTION .......................................................................................................................................................12

INITIAL PROCEDURE...................................................................................................................................................................... 12

MODES OF OPERATION................................................................................................................................................................. 12

DESCRIPTION OF MODES OF OPERATION............................................................................................................................... 13

Idle................................................................................................................................................................................................... 13

Record ............................................................................................................................................................................................. 13

Playback.......................................................................................................................................................................................... 14

Read Memory Status.................................................................................................................................................................... 15

Telephone Number Storage......................................................................................................................................................... 16

Non-Erasable Storage................................................................................................................................................................... 16

General Purpose Storage (GPS)................................................................................................................................................... 16

Tone Generation Mode ................................................................................................................................................................ 16

New Tone Definition..................................................................................................................................................................... 17

FSK Modem................................................................................................................................................................................... 17

Line Monitoring Mode ................................................................................................................................................................. 17

CID Submode................................................................................................................................................................................. 18

Delete Message ............................................................................................................................................................................. 18

Set/Modify Time Stamp ................................................................................................................................................................ 19

Get Time Stamp .............................................................................................................................................................................. 19

Get Available Record Time .......................................................................................................................................................... 19

DS6571E.2

DSP GROUP, INC., 3120 SCOTT BOULEVARD

2

SANTA CLARA, CA 95054 PH: 408 986-4300 FAX: 408 986-4490

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