Intel BOXD845BGSE Product Specification - Page 25
Intel, Chipset
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Product Description 1.8 Intel® 845 Chipset The Intel 845 chipset consists of the following devices: • Intel 82845 Memory Controller Hub (MCH) with Accelerated Hub Architecture (AHA) bus • Intel 82801BA I/O Controller Hub (ICH2) with AHA bus • Intel 82802AB Firmware Hub (FWH) The MCH is a centralized controller for the system bus, the memory bus, the AGP bus, and the Accelerated Hub Architecture interface. The ICH2 is a centralized controller for the board's I/O paths. The FWH provides the nonvolatile storage of the BIOS. The component combination provides the chipset interfaces as shown in Figure 5. System Bus UDMA 33 ATA-66/100 Network USB 845 Chipset 82845 Memory Controller Hub (MCH) AHA Bus 82801BA I/O Controller Hub (ICH2) 82802AB 4 Mbit Firmware Hub (FWH) AGP DDR SDRAM Interface Bus LPC Bus SMBus PCI Bus AC Link Figure 5. Intel 845 Chipset Block Diagram OM13069 ✏ NOTE The USB bus is routed from the NEC USB 2.0 controller if the USB 2.0 option is supported. For information about The Intel 845 chipset Resources used by the chipset Refer to http://developer.intel.com Chapter 2 25
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