Mobile Intel® 945 Express Chipset Family Datasheet June 2008 Document Number: 309219-006 INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL® PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN INTEL'S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, INTEL ASSUMES NO LIABILITY WHATSOEVER, AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS OTHERWISE AGREED IN WRITING BY INTEL, THE INTEL PRODUCTS ARE NOT DESIGNED NOR INTENDED FOR ANY APPLICATION IN WHICH THE FAILURE OF THE INTEL PRODUCT COULD CREATE A SITUATION WHERE PERSONAL INJURY OR DEATH MAY OCCUR. Intel may make changes to specifications and product descriptions at any time, without notice. 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All rights reserved. 2 Datasheet Contents 1Introduction............................................................................................................ 19 1.1 Mobile Intel® 945GM/GME Express Chipset Feature Support ................................... 23 1.1.1 Processor Support .................................................................................. 23 1.1.2 System Memory Support ......................................................................... 23 1.1.3 Discrete Graphics using PCI Express*........................................................ 24 1.1.4 Internal Graphics ................................................................................... 24 1.1.5 ICH Support .......................................................................................... 25 1.1.6 DMI...................................................................................................... 26 1.1.7 Power Management ................................................................................ 26 1.1.8 ISIPP Support........................................................................................ 26 1.1.9 Package ................................................................................................ 26 1.1.10 Mobile Intel® 945GME Chipset Feature Support ......................................... 27 1.2 Mobile Intel® 945PM Express Chipset Feature Support ........................................... 27 1.3 Intel® 945GT Express Chipset Feature Support..................................................... 27 1.3.1 Processor Support .................................................................................. 27 1.3.2 Internal Graphics ................................................................................... 27 1.3.3 ISIPP Support........................................................................................ 27 1.4 Mobile Intel® 945 Express Chipset Feature Support............................................... 28 1.4.1 Processor Support .................................................................................. 28 1.4.2 System Memory Support ......................................................................... 28 1.4.3 Internal Graphics ................................................................................... 28 1.4.4 DMI...................................................................................................... 28 1.4.5 Package ................................................................................................ 28 1.5 Mobile Intel® 945GSE Express Chipset Feature Support ......................................... 29 1.5.1 Analog TV-Out ....................................................................................... 29 1.6 Mobile Intel® 940GML Express Chipset Feature Support ......................................... 29 1.6.1 Processor Support .................................................................................. 29 1.6.2 System Memory Support ......................................................................... 29 1.6.3 Internal Graphics ................................................................................... 29 1.6.4 ICH Support .......................................................................................... 29 1.6.5 Power Management ................................................................................ 29 1.6.6 ISIPP Support........................................................................................ 29 1.7 Mobile Intel® 943GML Express Chipset Feature Support ......................................... 30 1.7.1 System Memory Support ......................................................................... 30 1.7.2 Internal Graphics ................................................................................... 30 1.8 Mobile Intel® 945GU Express Chipset Feature Support ........................................... 30 1.8.1 Processor Support .................................................................................. 30 1.8.2 System Memory Support ......................................................................... 30 1.8.3 x1 PCI Express*..................................................................................... 30 1.8.4 Internal Graphics ................................................................................... 30 1.8.5 LVDS Interface ...................................................................................... 30 1.8.6 SDVO Ports ........................................................................................... 30 1.8.7 ICH Support .......................................................................................... 31 1.8.8 DMI...................................................................................................... 31 1.8.9 Package ................................................................................................ 31 1.9 Terminology ..................................................................................................... 32 1.10 Reference Documents ........................................................................................ 34 2 Signal Description ................................................................................................... 35 2.1 Host Interface................................................................................................... 36 2.1.1 Host Interface Signals............................................................................. 36 Datasheet 3 2.1.2 Host Interface Reference and Compensation...............................................39 2.2 DDR2 DRAM Interface ........................................................................................40 2.2.1 DDR2 SDRAM Channel A Interface ............................................................40 2.2.2 DDR2 SDRAM Channel B Interface ............................................................41 2.2.3 DDR2 Common Signals............................................................................42 2.2.4 DDR2 SDRAM Reference and Compensation ...............................................43 2.3 PCI Express-Based Graphics Interface Signals .......................................................44 2.3.1 Serial DVO and PCI Express-Based Graphics Signal Mapping.........................45 2.4 DMI – MCH to ICH Serial Interface .......................................................................46 2.5 Integrated Graphics Interface Signals ...................................................................46 2.5.1 CRT DAC SIGNALS ..................................................................................46 2.5.2 Analog TV-out Signals .............................................................................47 2.5.3 LVDS Signals .........................................................................................48 2.5.4 Serial DVO Interface ...............................................................................49 2.5.5 Display Data Channel (DDC) and GMBUS Support .......................................50 2.6 PLL Signals .......................................................................................................51 2.7 Reset and Miscellaneous Signals ..........................................................................52