參數(shù)資料
型號： RG82845MP
英文描述： Controller Miscellaneous - Datasheet Reference
中文描述： 控制器雜項-數(shù)據(jù)表參考
文件頁數(shù)： 57/157頁
文件大?。?/td> 1407K
代理商： RG82845MP
Intel
82845MP/82845MZ Chipset-Mobile (MCH-M)
250687-002
Datasheet
15
R
1.1.
System Architecture
The Intel 845MP/845MZ Chipset Memory Controller Hub-M (MCH-M) component provides the
processor interface, DRAM interface, AGP interface, and hub interface. The CPU interface supports the
Mobile Intel Pentium 4 Processor-M subset of the Extended Mode of the Scalable Bus Protocol. The
Intel 845MP/845MZ Chipset is optimized for the Mobile Intel Pentium 4 Processor-M. It supports a
single channel of DDR memory. The MCH-M contains advanced power management logic. The Intel
845MP/845MZ Chipset platform supports the third generation mobile I/O Controller Hub (ICH3-M) to
provide the features required by a mobile platform.
The Intel 845 Chipset-Mobile Family (MCH-M) is in a 593-pin FC-BGA package and contains the
following functionality:
Supports single Mobile Intel Pentium 4 Processor-M configurations at 400 MT/s
AGTL+ host bus with integrated termination supporting 32-bit host addressing
845MP supports up to 1 GB of PC2100 Memory
845MZ supports up to 512 MB of PC1600 Memory
1.5-V AGP interface with 4x SBA/PIPE# Data Transfer and Fast Write capability
1.8-V, 8-bit, 66-MHz 4x hub interface to ICH3-M
Deeper Sleep
Intel SpeedStep
technology
Distributed arbitration for highly concurrent operation
1.2.
Mobile Intel Pentium 4 Processor-M Host Interface
The Intel 845MP/845MZ Chipset MCH-M is optimized for the Mobile Intel Pentium 4 Processor-M. The
primary enhancements over the Compatible Mode P6 bus protocol are:
Source synchronous double pumped address
Source synchronous quad pumped data
System bus interrupt and side-band signal delivery
In this mode, the MCH-M supports a 64B cache line size. Only one processor is supported at a System
bus frequency of 400 MT/s. The MCH-M integrates AGTL+ termination resistors on all of the AGTL+
signals. The MCH-M supports 32-bit host addresses, allowing the CPU to access the entire 4 GB of the
MCH-M memory address space.
The MCH-M has a 12-deep In-Order Queue to support up to 12 outstanding pipelined address requests
on the host bus. The MCH-M supports two outstanding defer cycles at a time; however, only one to any
particular IO interface. Host initiated I/O cycles are positively decoded to AGP/PCI or MCH-M
configuration space and subtractively decoded to the hub interface. Host initiated memory cycles are
positively decoded to AGP/PCI or DRAM. AGP semantic memory accesses initiated from AGP/PCI to
DRAM are not snooped on the host bus. Memory accesses initiated from AGP/PCI using PCI semantics
and from the hub interface to DRAM will be snooped on the System bus. Memory accesses whose
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
RG82845MP S L66J 制造商:Intel 功能描述:Chipset Memory Controller Hub Mobile 593-Pin FCBGA
RG82845MZ 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Controller Miscellaneous - Datasheet Reference
RG82845PE S L6H5 制造商:Intel 功能描述:CHIPSTGMCH 82845PE HT-PBGA760
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