- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377496 > Intel387 sx (Intel Corp.) SX Math Coprocessor(32位數(shù)學(xué)協(xié)處理器) PDF資料下載
參數(shù)資料
| 型號(hào)： | 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(yè)數(shù)： | 7/47頁(yè) |
| 文件大小： | 443K |
| 代理商： | INTEL387 SX |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)當(dāng)前第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)
Intel387
TM
SX MATH COPROCESSOR
2.0
FUNCTIONAL DESCRIPTION
The Intel387 SX Math CoProcessor is designed to
support the Intel386 SX Microprocessor and effec-
tively extend the CPU architecture by providing fast
execution of arithmetic instructions and transcen-
dental functions. This component contains internal
power management circuitry for reduced active pow-
er dissipation and an automatic idle mode.
2.1 Feature List
#
New power saving design provides low power
dissipation in active and idle modes.
#
Higher Performance, 10%–25% higher bench-
mark performance than the original Intel387 SX
Math CoProcessor.
#
High Performance 84-bit Internal Architecture
#
Eight 80-bit Numeric Registers, usable as individ-
ually addressable general registers or as a regis-
ter stack.
#
Full-range transcendental operations for SINE,
COSINE, TANGENT, ARCTANGENT, and LOG-
ARITHM.
#
Programmable rounding modes and notification
of rounding effects.
#
Exception reporting either by software polling or
hardware interrupts.
#
Fully compatible with the SX Microprocessors.
#
Expands Intel386 SX CPU data types to include
32-bit, 64-bit, and 80-bit Floating Point; 32-bit and
64-bit Integers; and 18 Digit BCD Operands.
#
Directly extends the Intel386 SX CPU Instruction
Set to trigonometric, logarithmic, exponential,
and arithmetic functions for all data types.
#
Operates independently of Real, Protected, and
Virtual-86 Modes of the Intel386 SX Microproces-
sors.
#
Fully compatible with the Intel387 SL Mobile and
DX Math CoProcessors. Implements all Intel387
Math CoProcessor architectural enhancements
over 8087 and 80287.
#
Implements ANSI/IEEE Standard 754-1985 for
binary floating point arithmetic.
#
Upward Object Code compatible from 8087 and
80287.
2.2 Math CoProcessor Architecture
As shown in Figure 2-1, the Intel387 SX Math Co-
Processor is internally divided into four sections; the
Bus Control Logic, the Data Interface and Control
Logic, the Floating Point Unit, and the Power Man-
agement Unit. The Bus Control Logic is responsible
for the CPU bus tracking and interface. The Data
Interface and Control Unit latches data and decodes
instructions. The Floating Point Unit executes the
mathematical instructions. The Power Management
Unit is new to the Intel387 family and is the nucleus
240225–2
Figure 2-1. Intel387
TM
SX Math CoProcessor Block Diagram
7
7
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| INTEL486 GX | Emedded Ultra-Low Power INTEL486 GX Processor(嵌入式超低能量處理器) |
| INTEL486 SX | Emedded Ultra-Low Power INTEL486 SX Processor(嵌入式超低能量處理器) |
| INTEL82801 | 82801AB (ICH0) I/O Controller Hub |
| INTEL82802AB | Firmware Hub (FWH) |
| INTELDX2 | High-Performance 32-Bit Embedded Processor(高性能32位嵌入式處理器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| INTEL387TMDX | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Intel387TM DX MATH COPROCESSOR |
| INTEL740 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:64-Bit Graphics (GUI) Accelerator |
| INTEL82801 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:82801AB (ICH0) I/O Controller Hub |
| INTEL82802AB | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Firmware Hub (FWH) |
| INTELLIGENT CHARGER + 4AA | 制造商:Energizer 功能描述:Bulk |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。