INTEL387TMDX データシートの表示（PDF） - Intel
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INTEL387TMDX Datasheet PDF : 41 Pages
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CONTENTS
3 2 Processor Architecture
3 2 1 Bus Control Logic
3 2 2 Data Interface and Control Unit
3 2 3 Floating Point Unit
3 3 System Configuration
3 3 1 Bus Cycle Tracking
3 3 2 MCP Addressing
3 3 3 Function Select
3 3 4 CPU MCP Synchronization
3 3 5 Synchronous or Asynchronous Modes
3 3 6 Automatic Bus Cycle Termination
3 4 Bus Operation
3 4 1 Nonpipelined Bus Cycles
3 4 1 1 Write Cycle
3 4 1 2 Read Cycle
3 4 2 Pipelined Bus Cycles
3 4 3 Bus Cycles of Mixed Type
3 4 4 BUSY and PEREQ Timing Relationship
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4 0 ELECTRICAL DATA
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4 1 Absolute Maximum Ratings
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4 2 DC Characteristics
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4 3 AC Characteristics
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5 0 Intel387TM DX MCP EXTENSIONS TO THE Intel386TM DX CPU INSTRUCTION
SET
36
APPENDIX A COMPATIBILITY BETWEEN THE 80287 MCP AND THE 8087
A-1
FIGURES
Figure 0 1 Intel387TM DX Math Coprocessor Block Diagram
1
Figure 1 1 Intel386TM DX Microprocessor and Intel387TM DX Math Coprocessor Register
Set
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Figure 2 1 Intel387TM DX MCP Tag Word
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Figure 2 2 MCP Status Word
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Figure 2 3 Protected Mode Intel387TM DX MCP Instruction and Data Pointer Image in
Memory 32-Bit Format
12
Figure 2 4 Real Mode Intel387TM DX MCP Instruction and Data Pointer Image in Memory 32-
Bit Format
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Figure 2 5 Protected Mode Intel387TM DX MCP Instruction and Data Pointer Image in
Memory 16-Bit Format
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Figure 2 6 Real Mode Intel387TM DX MCP Instruction and Data Pointer Image in Memory 16-
Bit Format
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Figure 2 7 Intel387TM DX MCP Control Word
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Figure 3 1 Intel387TM DX MCP Pin Configuration
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