MA28138
SYNONYMS
ASIC
BC
BT-bus
CBR
CBT
CIT
CRR
CTU
DBI
Application Specific Integrated Circuit
(all ‘1’s) Broadcast Address
Block Transfer Bus
CTU mode, block transfer bus, receive
CTU mode, block transfer bus, transmit
CTU mode, interrogation unit, transmit
CTU mode, response bus, receive
Central terminal unit
MA28138
MA28139
µP
Remote bus interface (RBI) ASIC
OBDH bus terminal (OBT) ASIC
Microprocessor
Output to BT-bus
On board data handling
OBDH bus terminal (MA28139)
Output to R-bus
Programmable Address
OB
OBDH
OBT
OR
PA
PIU
Digital bus interface
Payload Interface Unit
DBU
DMA(C)
ESA
FET
FTC
GPS
IB
I-bus
ICU
II
Digital bus unit
R-bus
RBI
RBR
RBT
RIR
RRR
RRT
RT(U)
SBC
TA
Response bus
Direct Memory Access (Controller)
European Space Agency
Field effect transistor
Fault tolerant computer
GEC Plessey Semiconductors
Input from BT-bus
Interrogation bus
Intelligent control unit
Input from I-bus
Input from R-bus
Remote bus interface (MA28138)
RTU mode, block transfer bus, receive
RTU mode, block transfer bus, transmit
RTU mode, interrogation bus, receive
RTU mode, response bus, receive
RTU mode, response bus, transmit
Remote terminal (unit)
Single board computer
(hard-wired) Terminal Address
Very large scale integration
IR
VLSI
IUB
Internal user bus
HEADQUARTERS OPERATIONS
CUSTOMER SERVICE CENTRES
• FRANCE & BENELUX Les Ulis Cedex Tel: (1) 64 46 23 45 Fax: (1) 64 46 06 07
• GERMANY Munich Tel: (089) 3609 06-0 Fax: (089) 3609 06-55
• ITALY Milan Tel: (02) 66040867 Fax: (02) 66040993
GEC PLESSEY SEMICONDUCTORS
Cheney Manor, Swindon,
Wiltshire, SN2 2QW, United Kingdom.
Tel: (01793) 518000
• JAPAN Tokyo Tel: (03) 5276-5501 Fax: (03) 5276-5510
• NORTH AMERICA Scotts Valley, USA Tel: (408) 438 2900 Fax: (408) 438 7023
• SOUTH EAST ASIA Singapore Tel: (65) 3827708 Fax: (65) 3828872
• SWEDEN Stockholm Tel: 46 8 702 97 70 Fax: 46 8 640 47 36
• TAIWAN, ROC Taipei Tel: 886 2 5461260 Fax: 886 2 7190260
• UK, EIRE, DENMARK, FINLAND & NORWAY Swindon, UK
Tel: (01793) 518527/518566 Fax: (01793) 518582
Fax: (01793) 518411
GEC PLESSEY SEMICONDUCTORS
P.O. Box 660017,
1500 Green Hills Road, Scotts Valley,
California 95067-0017,
United States of America.
Tel: (408) 438 2900
Fax: (408) 438 5576
These are supported by Agents and Distributors in major countries world-wide.
© GEC Plessey Semiconductors 1995 Publication No. DS3591-4.4 March 1995
TECHNICAL DOCUMENTATION - NOT FOR RESALE. PRINTED IN UNITED KINGDOM.
This publication is issued to provide information only which (unless agreed by the Company in writing) may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to
be regarded as a representation relating to the products or services concerned. No warranty or guarantee express or implied is made regarding the capability, performance or suitability of any product or
service. The Company reserves the right to alter without prior knowledge the specification, design or price of any product or service. Information concerning possible methods of use is provided as a guide
only and does not constitute any guarantee that such methods of use will be satisfactory in a specific piece of equipment. It is the user's responsibility to fully determine the performance and suitability of
any equipment using such information and to ensure that any publication or data used is up to date and has not been superseded. These products are not suitable for use in any medical products whose
failure to perform may result in significant injury or death to the user. All products and materials are sold and services provided subject to the Company's conditions of sale, which are available on request.
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