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參數(shù)資料
| 型號(hào)： | Pentium II 266 |
| 廠商： | Intel Corp. |
| 英文描述： | 32-Bit Processor With Low-Power Module(帶低能量模塊的32位處理器) |
| 中文描述： | 32位處理器低功率模塊（帶低能量模塊的32位處理器） |
| 文件頁數(shù)： | 23/50頁 |
| 文件大?。?/td> | 1003K |
| 代理商： | PENTIUM II 266 |
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Pentium
II Processor – Low-Power Module
Datasheet
23
4.0
Functional Description
4.1
Low-Power Module
The Pentium II Processor – Low-Power Module supports the Pentium II Processor – Low Power
core running 266/66 MHz with 32 Kbyte L1 code and data cache sizes.
4.2
L2 Cache
The processor core’s internal cache is complimented with a second-level cache using a high-
performance pipeline burst SRAM which uses a dedicated high speed bus into the processor core.
The L2 cache can support 512 Mbytes of system memory, while the maximum amount of
cacheable system memory supported by the 443BX Host Bridge/Controller is 256 Mbytes with 16
Mbit DRAMs. (The system controller can support up to 1 Gbytes of system memory using 64-Mbit
technology.) The module has two 100-pin TQFP footprints for 512 Kbyte direct-mapped write-
back L2 cache.
The module supports the “Stop Clock” mode of power management for the L2 SRAMs. In this
mode, the clock signals to the synchronous SRAMs are stopped or “parked” in a low-power state.
4.3
443BX Host Bridge/Controller
Intel’s 443BX Host Bridge/Controller is a highly integrated device that combines the bus
controller, the DRAM controller, and the PCI bus controller into one component. The 443BX Host
Bridge has multiple power management features for low-power systems:
CLKRUN# is a feature that enables controlling of the PCI clock on or off
443BX Host Bridge suspend modes include Suspend-to-RAM (STR), Suspend-to-Disk (STD)
and Powered-On-Suspend (POS)
System Management RAM (SMRAM) power management modes include Compatible
SMRAM (C_SMRAM) and Extended SMRAM (E_SMRAM). C_SMRAM is the traditional
SMRAM feature implemented in all Intel PCI chipsets. E_SMRAM is a new feature that
supports write-back cacheable SMRAM space up to 1 Mbyte. To minimize power
consumption while the system is idle, the internal 443BX Host Bridge clock is turned off
(gated off) when there is no processor and PCI activity.
The module supports only the 443BX Host Bridge/Controller features in “mobile compatible” or
legacy mode. Refer to the
Intel 440BX AGPset: 82443BX Host Bridge/Controller
datasheet (order
number 290633) for complete details.
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