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PDF VR4102 Data sheet ( Hoja de datos )
| Número de pieza | VR4102 | |
| Descripción | 64/32-Bit Microprocessor | |
| Fabricantes | NEC | |
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Preliminary User’s Manual
VR4102™
64/32-bit Microprocessor
PPD30102
Document No. U12739EJ2V0UM00 (2nd edition)
Date Published January 1998 N CP(K)
© 1997
© MIPS Technologies, Inc. 1996
Printed in Japan
1 page  
Regional Information
Some information contained in this document may vary from country to country. Before using any NEC
product in your application, pIease contact the NEC office in your country to obtain a list of authorized
representatives and distributors. They will verify:
• Device availability
• Ordering information
• Product release schedule
• Availability of related technical literature
• Development environment specifications (for example, specifications for third-party tools and
components, host computers, power plugs, AC supply voltages, and so forth)
• Network requirements
In addition, trademarks, registered trademarks, export restrictions, and other legal issues may also vary
from country to country.
NEC Electronics Inc. (U.S.)
Santa Clara, California
Tel: 408-588-6000
800-366-9782
Fax: 408-588-6130
800-729-9288
NEC Electronics (Germany) GmbH
Duesseldorf, Germany
Tel: 0211-65 03 02
Fax: 0211-65 03 490
NEC Electronics (UK) Ltd.
Milton Keynes, UK
Tel: 01908-691-133
Fax: 01908-670-290
NEC Electronics Italiana s.r.1.
Milano, Italy
Tel: 02-66 75 41
Fax: 02-66 75 42 99
NEC Electronics (Germany) GmbH
Benelux Office
Eindhoven, The Netherlands
Tel: 040-2445845
Fax: 040-2444580
NEC Electronics (France) S.A.
Velizy-Villacoublay, France
Tel: 01-30-67 58 00
Fax: 01-30-67 58 99
NEC Electronics (France) S.A.
Spain Office
Madrid, Spain
Tel: 01-504-2787
Fax: 01-504-2860
NEC Electronics (Germany) GmbH
Scandinavia Office
Taeby, Sweden
Tel: 08-63 80 820
Fax: 08-63 80 388
NEC Electronics Hong Kong Ltd.
Hong Kong
Tel: 2886-9318
Fax: 2886-9022/9044
NEC Electronics Hong Kong Ltd.
Seoul Branch
Seoul, Korea
Tel: 02-528-0303
Fax: 02-528-4411
NEC Electronics Singapore Pte. Ltd.
United Square, Singapore 1130
Tel: 253-8311
Fax: 250-3583
NEC Electronics Taiwan Ltd.
Taipei, Taiwan
Tel: 02-719-2377
Fax: 02-719-5951
NEC do Brasil S.A.
Cumbica-Guarulhos-SP, Brasil
Tel: 011-6465-6810
Fax: 011-6465-6829
J97. 8
5
5 Page 
5.5.5 Processor Revision Identifier (PRId) Register (15) ................................................................. 149
5.5.6 Config Register (16) ................................................................................................................... 150
5.5.7 Load Linked Address (LLAddr) Register (17).......................................................................... 151
5.5.8 Cache Tag Registers (TagLo (28) and TagHi (29)) .................................................................. 152
5.5.9 Virtual-to-Physical Address Translation .................................................................................. 153
5.5.10 TLB Misses ............................................................................................................................... 155
5.5.11 TLB Instructions....................................................................................................................... 155
CHAPTER 6 EXCEPTION PROCESSING........................................................................................... 157
6.1 HOW EXCEPTION PROCESSING WORKS........................................................................ 157
6.2 PRECISION OF EXCEPTIONS ............................................................................................. 158
6.3 EXCEPTION PROCESSING REGISTERS ........................................................................... 159
6.3.1 Context Register (4) ................................................................................................................... 160
6.3.2 BadVAddr Register (8) ............................................................................................................... 161
6.3.3 Count Register (9) ...................................................................................................................... 161
6.3.4 Compare Register (11) ............................................................................................................... 162
6.3.5 Status Register (12) ................................................................................................................... 162
6.3.6 Cause Register (13).................................................................................................................... 165
6.3.7 Exception Program Counter (EPC) Register (14) .................................................................... 167
6.3.8 WatchLo (18) and WatchHi (19) Registers ............................................................................... 168
6.3.9 XContext Register (20)............................................................................................................... 169
6.3.10 Parity Error Register (26)......................................................................................................... 170
6.3.11 Cache Error Register (27) ........................................................................................................ 171
6.3.12 ErrorEPC Register (30) ............................................................................................................ 171
6.4 DETAILS OF EXCEPTIONS ................................................................................................. 173
6.4.1 Exception Types......................................................................................................................... 173
6.4.2 Exception Vector Locations ...................................................................................................... 173
6.4.3 Priority of Exceptions ................................................................................................................ 176
6.4.4 Cold Reset Exception ................................................................................................................ 177
6.4.5 Soft Reset Exception ................................................................................................................. 178
6.4.6 NMI Exception ............................................................................................................................ 179
6.4.7 Address Error Exception ........................................................................................................... 180
6.4.8 TLB Exceptions .......................................................................................................................... 181
6.4.9 Cache Error Exception............................................................................................................... 184
6.4.10 Bus Error Exception................................................................................................................. 185
6.4.11 System Call Exception............................................................................................................. 186
6.4.12 Breakpoint Exception .............................................................................................................. 186
6.4.13 Coprocessor Unusable Exception.......................................................................................... 187
6.4.14 Reserved Instruction Exception ............................................................................................. 188
6.4.15 Trap Exception ......................................................................................................................... 188
6.4.16 Integer Overflow Exception..................................................................................................... 189
6.4.17 Watch Exception ...................................................................................................................... 189
6.4.18 Interrupt Exception .................................................................................................................. 190
6.5 EXCEPTION PROCESSING AND SERVICING FLOWCHARTS ....................................... 191
11
11 Page | ||
| Páginas | Total 70 Páginas | |
| PDF Descargar | [ Datasheet VR4102.PDF ] | |
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