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參數資料
| 型號： | Intel387 dx |
| 廠商： | Intel Corp. |
| 英文描述： | DX Math Coprocessor(32位數學協處理器) |
| 中文描述： | 霉素數學協處理器（32位數學協處理器） |
| 文件頁數： | 20/41頁 |
| 文件大?。?/td> | 406K |
| 代理商： | INTEL387 DX |
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Intel387
TM
DX MATH COPROCESSOR
3.1.1 Intel386
TM
DX CPU CLOCK 2 (CPUCLK2)
This input uses the Intel386 DX CPU CLK2 signal to
time the bus control logic. Several other MCP sig-
nals are referenced to the rising edge of this signal.
When CKM
e
1 (synchronous mode) this pin also
clocks the data interface and control unit and the
floating-point unit of the MCP. This pin requires
MOS-level input. The signal on this pin is divided by
two to produce the internal clock signal CLK.
3.1.2 Intel387
TM
DX MCP CLOCK 2 (NUMCLK2)
When CKM
e
0 (asynchronous mode) this pin pro-
vides the clock for the data interface and control unit
and the floating-point unit of the MCP. In this case,
the ratio of the frequency of NUMCLK2 to the fre-
quency of CPUCLK2 must lie within the range 10:16
to 14:10. When CKM
e
1 (synchronous mode) this
pin is ignored; CPUCLK2 is used instead for the data
interface and control unit and the floating-point unit.
This pin requires TTL-level input.
3.1.3 Intel387
TM
DX MCP CLOCKING MODE
(CKM)
This pin is a strapping option. When it is strapped to
V
CC
, the MCP operates in synchronous mode; when
strapped to V
SS
, the MCP operates in asynchronous
mode. These modes relate to clocking of the data
interface and control unit and the floating-point unit
only; the bus control logic always operates synchro-
nously with respect to the Intel386 DX Microproces-
sor.
240448–7
Figure 3.2. Asynchronous Operation
20
20
相關PDF資料 |
PDF描述 |
|---|---|
| Intel387 sx | SX Math Coprocessor(32位數學協處理器) |
| 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) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| INTEL387SX | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Intel387 SX - MATH COPROCESSOR |
| 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) |
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