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ICs for Communications
Enhanced ISDN Data Access Controller
ISAR
PSB 7110
Version 1.0
Software Version #4
Data Sheet 07.96
T7110-XV10-D3-7600

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_________________________________________________PSB 7110
PSB 7110
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Published by Siemens AG, Bereich Halbleiter, Product Definition, Balanstraße 73, D-81541 München
©Siemens AG 1995. All Rights Reserved.
As far as patents or other rights of third parties are concerned, liability is only assumed for components per se, not for applications, processes and
circuits implemented within components or assemblies.
The information describes the type of component and shall not be considered as assured characteristics.
Terms of delivery and rights to change design reserved.
For questions on technology, delivery, and prices please contact the Office of Semiconductor Group in Germany or the Siemens Companies and
Representatives worldwide (see address list).
Due to technical requirements components may contain dangerous substances. For information on the type in question please contact your
nearest Siemens Office, Semiconductor Group.
Siemens AG is an approved CECC manufacturer.
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_________________________________________________PSB 7110
Contents
General Information ...................................................................................................................................................6
1 Features ..............................................................................................................................................................7
1.1 System Integration ........................................................................................................................................8
1.1.1 ISDN PC / Workstation Adapter with So interfaces
.......................................................................8
1.1.2 ISDN Voice/Data Terminal ..............................................................................................................9
1.1.3 ISDN Standalone Terminal with POTS Interface
...........................................................................10
1.2 Logic Symbol ................................................................................................................................................11
1.3 Pin Configuration ..........................................................................................................................................12
1.4 Device Architecture .......................................................................................................................................13
1.5 Pin Description ..............................................................................................................................................14
1.6 Clock Generation ..........................................................................................................................................18
1.7 Memory Configuration ..................................................................................................................................19
2 Functional Description .......................................................................................................................................20
2.1 General Functions ........................................................................................................................................20
2.1.1 Clock Generation ............................................................................................................................21
2.1.2 Interfaces .........................................................................................................................................21
2.1.2.1 IOM-2 Interface ......................................................................................................................21
2.1.2.2 Host Interface ........................................................................................................................21
2.1.2.3 Communications Interface ....................................................................................................22
2.2 Buffer Configuration .....................................................................................................................................26
2.3 SART Configuration .....................................................................................................................................27
2.3.1 ASYNC Mode ..................................................................................................................................27
2.3.2 HDLC Mode ....................................................................................................................................27
2.3.3 Binary Mode ....................................................................................................................................28
2.4 Pump Configuration .....................................................................................................................................28
2.4.1 Fax Modulations ..............................................................................................................................29
2.4.2 Datamodem Modulations ................................................................................................................29
2.4.3 Halfduplex Modulations ...................................................................................................................29
2.4.4 V.110 ...............................................................................................................................................29
2.4.5 DTMF ..............................................................................................................................................30
2.4.6 DTMF Transmission ........................................................................................................................30
2.4.7 Bypass Mode ...................................................................................................................................30
2.5 IOM-2 Configuration .....................................................................................................................................30
3 Operational Description .....................................................................................................................................31
3.1 General Information ......................................................................................................................................31
3.1.1 Configuration After Reset ................................................................................................................31
3.1.2 Message Transfer from Host to ISAR .............................................................................................33
3.1.3 Message Transfer from ISAR to Host .............................................................................................35
3.1.4 Message Overview ..........................................................................................................................37
3.1.5 Message Structure ..........................................................................................................................40
3.1.5.1 Interrupt Status Byte ..............................................................................................................41
3.1.5.2 Control Registers and Parameters ........................................................................................44
3.2 Buffer Configuration .....................................................................................................................................45
3.2.1 Buffer Configuration Setup (Host ISAR) ....................................................................................45
3.2.2 Buffer Configuration Request (Host ISAR) ................................................................................46
3.2.3 Buffer Configuration Response (ISAR Host) .............................................................................47
3.2.4 Buffer Control Command (Host ISAR) ........................................................................................49
3.3 Buffer Status .................................................................................................................................................50
3.3.1 Buffer Status Request (Host ISAR) ...........................................................................................50
3.3.2 Buffer Status Response (ISAR Host) ........................................................................................51
3.3.3 Buffer Status Event (ISAR Host) ................................................................................................53
3.3.3.1
Buffer Specific Status Event (ISAR Host) ........................................................................53
3.3.3.2
Buffer General Status Event (ISAR Host) ........................................................................54
3.4 SART Configuration .....................................................................................................................................55
3.4.1 SART Configuration Setup - HDLC (Host
ISAR) ......................................................................55
3.4.2 SART C onfiguration Setup - ASYNC (Host ISAR) ....................................................................57
3.4.3 SART Configuration Setup - Binary (Host
ISAR) ......................................................................59
3.4.4 SART Configuration Setup - Disable SART (Host
ISAR) .........................................................60
3.5 SART Data ...................................................................................................................................................61
3.5.1 SART Status Events with Receive Data (ISAR
Host) ...............................................................61
3.5.1.1
SART Status Events with Receive Data - HDLC (ISAR
Host) ........................................61
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