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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Intel387TM DX Math CoProcessor
CONTENTS
1 0 FUNCTIONAL DESCRIPTION
2 0 PROGRAMMING INTERFACE
2 1 Data Types
2 2 Numeric Operands
2 3 Register Set
2 3 1 Data Registers
2 3 2 Tag Word
2 3 3 Status Word
2 3 4 Instruction and Data Pointers
2 3 5 Control Word
2 4 Interrupt Description
2 5 Exception Handling
2 6 Initialization
2 7 8087 and 80287 Compatibility
2 7 1 General Differences
2 7 2 Exceptions
3 0 HARDWARE INTERFACE
3 1 Signal Description
3 1 1 Intel386TM DX CPU Clock 2 (CPUCLK2)
3 1 2 Intel387TM DX MCP Clock 2 (NUMCLK2)
3 1 3 Intel387TM DX MCP Clocking Mode (CKM)
3 1 4 System Reset (RESETIN)
3 1 5 Processor Extension Request (PEREQ)
3 1 6 Busy Status (BUSY )
3 1 7 Error Status (ERROR )
3 1 8 Data Pins (D31 – D0)
3 1 9 Write Read Bus Cycle (W R )
3 1 10 Address Strobe (ADS )
3 1 11 Bus Ready Input (READY )
3 1 12 Ready Output (READYO )
3 1 13 Status Enable (STEN)
3 1 14 MCP Select 1 (NPS1 )
3 1 15 MCP Select 2 (NPS2)
3 1 16 Command (CMD0 )
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