參數(shù)資料
型號: Intel387 sx
廠商: Intel Corp.
英文描述: SX Math Coprocessor(32位數(shù)學(xué)協(xié)處理器)
中文描述: 山西數(shù)學(xué)協(xié)處理器(32位數(shù)學(xué)協(xié)處理器)
文件頁數(shù): 2/47頁
文件大?。?/td> 443K
代理商: INTEL387 SX
Intel387
TM
SX Math CoProcessor
CONTENTS
PAGE
1.0 PIN ASSIGNMENT
ààààààààààààààààààààà 5
1.1 Pin Description Table
àààààààààààààààà 6
2.0 FUNCTIONAL DESCRIPTION
ààààààààà 7
2.1 Feature List
ààààààààààààààààààààààààà 7
2.2 Math CoProcessor Architecture
àààààà 7
2.3 Power Management
ààààààààààààààààà 8
2.3.1 Dynamic Mode
ààààààààààààààààà 8
2.3.2 Idle Mode
àààààààààààààààààààààà 8
2.4 Compatibility
àààààààààààààààààààààààà 8
2.5 Performance
àààààààààààààààààààààààà 8
3.0 PROGRAMMING INTERFACE
ààààààààà 9
3.1 Instruction Set
ààààààààààààààààààààààà 9
3.1.1 Data Transfer Instructions
àààààà 9
3.1.2 Arithmetic Instructions
àààààààààà 9
3.1.3 Comparison Instructions
ààààààà 10
3.1.4 Transcendental
Instructions
ààààààààààààààààààààààà 10
3.1.5 Load Constant Instructions
àààà 10
3.1.6 Processor Instructions
ààààààààà 11
3.2 Register Set
àààààààààààààààààààààààà 11
3.2.1 Status Word (SW) Register
àààà 12
3.2.2 Control Word (CW)
Register
àààààààààààààààààààààààààà 15
3.2.3 Data Register
àààààààààààààààààà 16
3.2.4 Tag Word (TW) Register
ààààààà 16
3.2.5 Instruction and Data
Pointers
àààààààààààààààààààààààààà 16
3.3 Data Types
ààààààààààààààààààààààààà 18
3.4 Interrupt Description
àààààààààààààààà 18
3.5 Exception Handling
ààààààààààààààààà 18
3.6 Initialization
àààààààààààààààààààààààà 21
3.7 Processing Modes
àààààààààààààààààà 21
3.8 Programming Support
àààààààààààààà 21
CONTENTS
PAGE
4.0 HARDWARE SYSTEM
INTERFACE
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4.1 Signal Description
àààààààààààààààààà 22
4.1.1 Intel386 CPU Clock 2
(CPUCLK2)
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4.1.2 Intel387 Math CoProcessor
Clock 2 (NUMCLK2)
àààààààààààààà 22
4.1.3 Clocking Mode (CKM)
ààààààààà 23
4.1.4 System Reset (RESETIN)
àààààà 23
4.1.5 Processor Request
(PEREQ)
ààààààààààààààààààààààààà 23
4.1.6 Busy Status (BUSY
Y
)
ààààààààà 23
4.1.7 Error Status (ERROR
Y
)
ààààààà 23
4.1.8 Data Pins (D15–D0)
ààààààààààà 23
4.1.9 Write/Read Bus Cycle
(W/R
Y
)
àààààààààààààààààààààààààà 23
4.1.10 Address Stobe (ADS
Y
)
ààààààà 23
4.1.11 Bus Ready Input
(READY
Y
)
ààààààààààààààààààààààà 24
4.1.12 Ready Output
(READYO
Y
)
àààààààààààààààààààààà 24
4.1.13 Status Enable (STEN)
àààààààà 24
4.1.14 Math CoProcessor Select 1
(NPS1
Y
)
ààààààààààààààààààààààààà 24
4.1.15 Math CoProcessor Select 2
(NPS2)
ààààààààààààààààààààààààààà 24
4.1.16 Command (CMD0
Y
)
ààààààààà 24
4.1.17 System Power (V
CC
)
ààààààààà 24
4.1.18 System Ground (V
SS
)
àààààààà 24
4.2 System Configuration
ààààààààààààààà 25
4.3 Math CoProcessor Architecture
ààààà 26
4.3.1 Bus Control Logic
àààààààààààààà 26
4.3.2 Data Interface and Control
Unit
ààààààààààààààààààààààààààààààà 26
4.3.3 Floating Point Unit
ààààààààààààà 26
4.3.4 Power Management Unit
ààààààà 26
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