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
