User manual VIA MOBILE-ITX WHITE PAPER

[. . . ] In addition to describing the main features and applications of the Mobile-ITX form factor, this document also includes information about the VIA Mobile-ITX CPU module reference design, a working version of the board with suggested components and layout. 2. Mobile-ITX Form Factor Overview 2. 1 Mobile-ITX Form Factor Features and Benefits Measuring a mere 6cm x 6cm, the Mobile-ITX form factor is currently the smallest x86 Computer-on-module specification in the industry, and the latest advance in modular device design. Vertical market segments have evolved to demand greater miniaturization from today's x86 platforms. [. . . ] Typical implementations are shown below: Copyright © VIA Technologies, Inc, 2009. The names of actual companies and products may be the trademarks of their respective owners. VIA Mobile-ITX Form Factor Reference Design 3. 1 VIA Mobile-ITX Form Factor Reference Design Overview The VIA Mobile-ITX reference design provides developers with a standard platform for designing and building truly cost effective, ultra compact, scalable mainboards incorporating a range of features not previously possible using such a small form factor. With an onboard processor and all-in-chipset, the VIA Mobile-ITX reference design is a complete computer-on-module. VIA Mobile-ITX is built around VIA's highly integrated system media processors, the VIA VX820, and features a combination of IDE interface and on-board CRT and LCD interfaces to provide a highly flexible and cost effective platform that can be scaled to meet a range of product requirements and feature sets. The VIA VX820 media system processor is equipped with powerful core logic, multimedia, connectivity and storage technologies within a very highly integrated single-chip package. The VIA C7-M ULV processor that powers the VIA Mobile reference design has also been specially adapted for the Mobile-ITX form factor, fabricated with a specially reduced die size of only 6mm x 6mm. Ultra compact versions of VIA's current processor families will also be available for customized Mobile-ITX designs. Copyright © VIA Technologies, Inc, 2009. The names of actual companies and products may be the trademarks of their respective owners. . 6 Mobile-ITX Figure 3: VIA Mobile-ITX CPU Module Reference Design The VIA Mobile-ITX CPU module reference design is ideal for embedded systems, since the embedded market demands much higher levels of energy efficiency and miniaturization than the PC industry, as well as greater product reliability and compatibility. The VIA Mobile-ITX reference design provides a standardized, off-the shelf platform with full hardware compatibility to minimize development and testing time and to speed time to market. 3. 2 VIA Mobile-ITX CPU Module Reference Design Specification The VIA Mobile-ITX CPU module reference design configuration specifies the combination of features as shown in Table 4 below. Copyright © VIA Technologies, Inc, 2009. The names of actual companies and products may be the trademarks of their respective owners. . 7 Mobile-ITX Table 4: Mobile-ITX CPU Module Reference Design Specification Item PCB CPU Description Mobile-ITX Platform Size HDI 12 Layers 60mm*60mm VIA C7-M ULV Processor 400MHz Front Side Bus. 6mm x 6mm x 1. 79mm mobileBGA Package with 400 balls and 0. 50mm ball pitch. [. . . ] . 9 Mobile-ITX 3. 3 VIA Mobile-ITX Form Factor Reference Design Layout Figures 4 and 5 outline the basic placement of components on the VIA Mobile-ITX mainboard reference design layout, while Figure 6 specifies the board dimensions. Figure 4: VIA Mobile-ITX CPU Module Reference Design PCB Layout: Top side SYS T EM P SYS T EM Pr M o ni to Mo n it or Clock Clock Gen Gen C7M 1GHz DDR2 SDRAM DDR2 SDRAM 8M*16bit*8Banks 8M*16bit*8Banks VT1708B VT1708B Audio Audio VIA VIA VX820 DDR2 SDRAM DDR2 SDRAM 8M*16bit*8Banks 8M*16bit*8Banks SPI SPI Flash Flash ROM ROM Figure 5: Mobile-ITX CPU Module Reference Design PCB Reference Design Layout: Bottom side CN1 Vcore Vcore PWM PWM DDR2 SDRAM DDR2 SDRAM 8M*16bit*8Banks 8M*16bit*8Banks DDR2 SDRAM DDR2 SDRAM 8M*16bit*8Banks 8M*16bit*8Banks CN2 Copyright © VIA Technologies, Inc, 2009. The names of actual companies and products may be the trademarks of their respective owners. [. . . ]