XTX 820 Reference Manual iii
Contents
Chapter 1 About This Manual.........................................................................................................1
Purpose of this Manual ......................................................................................................................1
Reference Material............................................................................................................................. 1
Related Ampro Products.................................................................................................................... 2
Chapter 2 Product Overview.......................................................................................................... 5
ETX® Concept and XTX™ Extension.................................................................................................. 5
Product Description............................................................................................................................ 6
Board Features.............................................................................................................................. 7
Block Diagram..............................................................................................................................10
Major Integrated Circuits (ICs)..................................................................................................... 11
Connector Definitions...................................................................................................................12
Specifications................................................................................................................................... 13
Physical Specifications ................................................................................................................13
Mechanical Specifications............................................................................................................13
Power Specifications....................................................................................................................14
Environmental Specifications.......................................................................................................14
Thermal/Cooling Solutions...........................................................................................................14
Chapter 3 Hardware.......................................................................................................................15
Overview .......................................................................................................................................15
CPU (U1) .......................................................................................................................................16
Celeron M Processor................................................................................................................... 16
Pentium M Processors................................................................................................................. 16
Memory .......................................................................................................................................16
DDR2 SODIMM Socket (J5)........................................................................................................ 16
Flash Memory (U17).................................................................................................................... 16
Interrupt Channel Assignments (IRQs)........................................................................................ 16
Memory Map................................................................................................................................ 17
I/O Address Map.......................................................................................................................... 18
PCI Bus Interface Connector (J1).................................................................................................... 19
PCI Bus ....................................................................................................................................... 19
Universal Serial Bus (USB)..........................................................................................................24
Serial Interrupt Request............................................................................................................... 24
AC’97 Sound................................................................................................................................ 24
PCI Express Interface (J2)............................................................................................................... 29
PCI Express/ExpressCards .........................................................................................................29
Serial ATA.................................................................................................................................... 30
Additional Universal Serial Bus (USB) Ports............................................................................... 30
AC'97/HDA CODEC.....................................................................................................................31
LPC Interface............................................................................................................................... 31
Extended System Management...................................................................................................31
Primary I/O Interface (J3)................................................................................................................. 35
Floppy Port...................................................................................................................................35
Parallel Port..................................................................................................................................36
Serial Ports 1 and 2 .....................................................................................................................37
Infrared (IrDA) Port ......................................................................................................................38
PS/2 Keyboard............................................................................................................................. 38