Page 1
STX88831 Series
Intel
Atom™ N270 Processor
STX Form Factor SoM
User’s Manual
Page 2
Disclaimers
This manual has been carefully checked and believed to contain
accurate information. AXIOMTEK Co., Ltd. assumes no responsibility
for any infringements of patents or any third party’s rights, and any
liability arising from such use.
AXIOMTEK does not warrant or assume any legal liability or
responsibility for the accuracy, completeness or usefulness of any
information in this document. AXIOMTEK does not make any
commitment to update the information in this manual.
AXIOMTEK reserves the right to change or revise this document
and/or product at any time without notice.
No part of this document may be reproduced, stored in a retrieval
system, or transmitted, in any form or by any means, electronic,
mechanical, photocopying, recording, or ot he rwise, without the prior
written permission of AXIOMTEK Co., Ltd.
CAUTION
If you replace wrong batteries, it causes the danger of explosion. It is
recommended by the manufacturer that you follow the manufacturer’s
instructions to only replace the same or equivalent type of battery,
and dispose of used ones.
Copyright 2009 AXIOMTEK Co., Ltd.
All Rights Reserved
November 2009, Version A1
Printed in Taiwan
ii
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ESD Precautions
Computer boards have integrated circuits sensitive to static electricity.
To prevent chipsets from electrostatic discharge damage, please ta ke
care of the following jobs with precautions:
Do not remove boards or integrated circuits from their anti-static
packaging until you are ready to install them.
Before holding the board or integrated circuit, touch an unpainted
portion of the system unit chassis for a few seconds. It
discharges static electricity from your body.
Wear a wrist-grounding strap, available from most electronic
component stores, when handling boards and components.
Trademarks Acknowledgments
AXIOMTEK is a trademark of AXIOMTEK Co., Ltd.
Windows
®
is a trademark of Microsoft Corporation.
AMI are trademarks of American Megatrend Inc.
IBM, PC/AT, PS/2, VGA are trademarks of International Business
Machines Corporation.
Intel
®
Atom
TM
are trademarks of Intel Corporation.
Other brand names and trademarks are the properties and registered
brands of their respective owners.
iii
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Table of Contents
Disclaimers........................................................................................................... ii
ESD Precautions ................................................................................................. iii
CHAPTER 1 INTRODUCTION..................................................................................... 1
1.1 Specifications........................................................................................... 2
1.2 Utilities Supported.................................................................................... 4
CHAPTER 2 JUMPERS AND CONNECTORS............................................................ 5
2.1 Board Dimensions and Fixing Holes....................................................... 5
2.2 Board Layout........................................................................................... 7
2.3 Jumper Settings...................................................................................... 9
2.4 Connectors............................................................................................ 11
CHAPTER 3 HARDWARE DESCRIPTION................................................................ 19
3.1 Microprocessors.................................................................................... 19
3.2 BIOS...................................................................................................... 19
3.3 System Memory.................................................................................... 19
3.4 I/O Port Address Map............................................................................ 20
3.5 Interrupt Controller................................................................................ 22
3.6 Memory Map......................................................................................... 23
CHAPTER 4 AMI BIOS UTILITY................................................................................ 26
4.1 Starting.................................................................................................. 26
4.2 Navigation Keys.................................................................................... 26
4.3 Main Menu ............................................................................................ 28
4.4 Advanced Menu.................................................................................... 29
4.5 PCI PnP Menu ...................................................................................... 44
4.6 Boot Menu............................................................................................. 47
4.7 Security Menu....................................................................................... 50
4.8 Chipset Menu........................................................................................ 51
4.9 Exit Menu.............................................................................................. 55
APPENDIX A WATCHDOG TIMER ........................................................................... 58
APPENDIX B DIGITAL I/O......................................................................................... 60
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STX88831 STX Evaluation Platform Module Series User’s Manual
CHAPTER 1
INTRODUCTION
The STX88831 is a STX form factor SoM (System-On-a-Module)
to support Intel
integrates Intel
limited applications in mind. In addition of onboard features which
are integrated on STX88831, the STX standard interfa ce
provides 4 PCI Masters and ISA output for expansion design
purpose applied on the related Baseboard.
With Axiomtek’s STX SoM, customers are capable of
maintaining the same hardware kernel and adapt various I/O
combinations for different application p urposes.
Introduction
®
Atom™ N270 processor with FSB 533 MHz. It
®
945GSE & ICH7M chipsets, designed with the space-
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STX88831 STX Evaluation Platform Module Series User’s Manual
1.1 Specifications
CPU
Intel
System Chipset
Intel
CPU Frequency
533 MHz FSB
BIOS
AMI BIOS with Axiomtek standard features
8Mbit SPI Flash, DMI, Plug and Play
“Load Optimized Default” to backup customized Setting in
®
AtomTM N270 processor
®
945GSE & ICH7M
the BIOS flash chip to prevent from CMOS battery fail
Ethernet Boot ROM (RPL & PXE), customized default
saving features, used SPI type Flash memory
System Memory
One 200-pin unbuffered DDR2 SO-DIMM socket
Maximum to 2GB DDR2 400/533 MHz memory
L2 Cache
Integrated in CPU
IDE Interface
One PATA-100 to two devices（IDE1 through STX interface
connector）
One SATA-150 connector
Multi I/O Interface
One floppy port （STX interface connector）supporting up
two devices
One SPP/EPP/ECP parallel port（STX interface
connector）
Two RS-232
One PS2 Keyboard & Mouse support（STX interface
connector）
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Introduction
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STX88831 STX Evaluation Platform Module Series User’s Manual
USB Interface
Four USB ports with fuse protection and complies with
USB Spec. Rev. 2.0
Graphics
Intel
®
945GSE GMCH with GMA 950 integrated graphic
engine
CRT and TTL or LVDS LCD output
Support 24-bit TTL TFT LCD via STX interface
connector and 18/24-bit single/dual channel LVDS with
Chrontel CH7308B from SDVO as EFP port through
AXIOMTEK 30-pin FPC connector (FC1); please be
noted that the LCD interface can be used either TTL
TFT or LVDS at the same time
Watchdog Timer
1~255 seconds; up to 255 levels
Ethernet
One Realtek RTL8103EL 10/100 Fast Ethernet via PCI-
Expres x1 Bus
Audio
AC-link through STX interface for codec on the baseboard
Expansion Interface
Four 32-bit/33MHz PCI Bus master
Standard ISA Bus
Power Management
ACPI (Advanced Configuration and P ower Interface)
NOTE All specifications and images are subject to change
without notice.
Introduction
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STX88831 STX Evaluation Platform Module Series User’s Manual
1.2 Utilities Supported
Chipset Driver
VGA Driver
Ethernet Driver
Audio Driver
4
Introduction
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STX88831 STX Evaluation Platform Module Series User’s Manual
CHAPTER 2
JUMPERS AND CONNECTORS
2.1 Board Dimensions and Fixing Holes
Jumpers and Connectors
Component Side
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STX88831 STX Evaluation Platform Module Series User’s Manual
6
Solder Side
Jumpers and Connectors
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STX88831 STX Evaluation Platform Module Series User’s Manual
2.2 Board Layout
Jumpers and Connectors
Component Side
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STX88831 STX Evaluation Platform Module Series User’s Manual
8
Solder Side
Jumpers and Connectors
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STX88831 STX Evaluation Platform Module Series User’s Manual
2.3 Jumper Settings
Proper jumer settings configure the STX88831 to meet your application
purpose. We are herewith listing a summary table of all jumpers and
default settings for onboard devices, respectively.
Jumper Default Setting Jumper Setting
JP1 LVDS Voltage Selection
Default： 3.3V
JP2 Normal Operation/Clear CMOS setting
Default： Normal Operation
SW1 Auto PowerButton Mode Selection
Default：ATX Power Mode
Short 1-2
Short 1-2
ON
2.3.1 LCD Voltage Selection Jumper (JP1)
The board supports +3.3V or +5V flat panel displays. Configure the
jumper JP1 to the appropriate voltage of the flat panel.
Descriptio
LCD
Voltage
Selection
Function Jumper Setting
3.3V
(Default)
5V
Jumpers and Connectors
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STX88831 STX Evaluation Platform Module Series User’s Manual
2.3.2 CMOS Clear Jumper (JP2)
You may need to use this jumper is to clear the CMOS memory if
incorrect settings in the Setup Utility.
Descriptio
CMOS
Clear
Function Jumper Setting
Normal
(Default)
Clear
CMOS
2.3.3 Auto Power Button Mode Selection Switch (SW1)
When Jumper SW1 is set OFF for AC power input, the system will be
automatically power ON without pressing soft power butto n; when SW1
is ON for AC power input, it is necessary to manually press soft power
button to make the system power ON.
Description Function
Auto Power
Button Mode
Selection
ATX
Power
Mode
(Default)
AT Power
Mode
Jumper Setting
Note This function is similar to the feature of Power On after
Power Failed, which is controlled by hardware cir cuitry ins tead of BIOS.
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Jumpers and Connectors
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STX88831 STX Evaluation Platform Module Series User’s Manual
2.4 Connectors
The connectors allow the CPU Board to connect with other parts of the
system. Some problems encountered by your system may be a result
from loose or improper connections. Ensure that all connectors are in
place and firmly attached. The following table lists the function of each
connector on the STX88831.
Connectors Label
DDRII SODIMM Connector DIMM1
LVDS Connector FC1
SATA Connector SATA1
STX Connector – P1 SP1
STX Connector – P2 SP2
Jumpers and Connectors
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STX88831 STX Evaluation Platform Module Series User’s Manual
2.4.1 LVDS Flat Panel Connector (FC1)
The board has a 30-pin connector FC1 for LVDS Interface LCD. It is
strongly recommended to use the matching Hirose DF19G-30P-1H 30pin connector for LVDS on the board.
Pin Signal Pin Signal
1 VCCM 2 VCCM
3 VCCM 4 L_VDDEN
5 GFPDE 6 LA_BLKEN
7 GND 8
Channel B D3- (24-Bit
9
support)
11 Channel B CLK- 12 Channel B D2+
13 Channel B D2- 14 GND
15 Channel B D1+ 16 Channel B D117 GND 18 Channel B D0+
19 Channel B D0- 20
Channel A D3- (24-Bit
21
support)
23 Channel A CLK- 24 GND
25 Channel A D2+ 26 Channel A D227 Channel A D1+ 28 Channel A D129 Channel A D0+ 30 Channel A D0-
Channel B D3+ (24-Bit
support)
10 Channel B CLK+
Channel A D3+ (24-Bit
support)
22 Channel A CLK+
12
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STX88831 STX Evaluation Platform Module Series User’s Manual
2.4.2 Serial ATA Connector (SATA1)
The SATA connector SATA1 is for high-speed SATA interface ports,
and It can be connected to hard disk devices.
Pin Signal
1 GND
2 SATA_TX+
3 SATA_TX-
4 GND
5 SATA_RX-
6 SATA_RX+
7 GND
2.4.3 STX Connector (SP1, SP2)
Jumpers and Connectors
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STX88831 STX Evaluation Platform Module Series User’s Manual
SP1 SP2
Pin Description Pin Description Pin Description Pin Description
1 GND 2 NET_TXD+ 1 IDE_RESET# 2 GND
NET_ACT_LE
3
5
7 DISK_LED# 8 LAN_RXD+ 7 IDE_D6 8
9 SPEAKR 10 LAN_RXD- 9 IDE_D9 10 ISA_SD6
11 PCI_GNT3# 12 GND 11 IDE_D5 12 VCC_5V
13 RSTBTN# 14 VCC_5V_SBY 13 IDE_D10 14 ISA_SD5
15 PWRBTN# 16 VCC_5V_SBY 15 IDE_D4 16 ISA_IRQ9
17 WAKE_EVENT 18 PS_ON# 17 IDE_D11 18 ISA_SD4
19 GND 20 AC_RST# 19 IDE_D3 20 GND
21 PS2_KB_CLK 22 AC_SDIN 21 IDE_D12 22 ISA_SD3
23
25 PS2_MS_CLK 26 AC_SDOUT 25 IDE_D13 26 ISA_SD2
27
29 VCC_5V 30 GND 29 IDE_D14 30 ISA_SD1
31 N.C 32 I2C_CLK 31 IDE_D0 32
33 PCI_REQ3# 34 I2C_DATA 33 IDE_D15 34 ISA_SD0
35
37
39 VCC_RTC 40
D#
NET_LINK_LE
D#
PS2_KB_DAT
A
PS2_MS_DAT
A
CPU_THERM
D_A
CPU_THERM
D_C
4 NET_TXD- 3 IDE_D7 4
6 NET_CTREF 5 IDE_D8 6 ISA_SD7
24 AC_BITCLK 23 IDE_D2 24 ISA_DRQ2
28 AC_SYNC 27 IDE_D1 28 VCC_5V
ISA_ZEROWS
36 GND 35 IDE_IRQ 36 IDE_PATADET
38
IR_RX
(OPTION)
IR_TX
(OPTION)
37 IDE_REQ 38 ISA_ GPCS#
39 IDE_IOW# 40 N.C
ISA_
IOCHCK#
ISA_
RSETDRV
#
14
Jumpers and Connectors
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STX88831 STX Evaluation Platform Module Series User’s Manual
SP1 SP2
Pin Description Pin Description Pin Description Pin Description
41 VCC_5V 42 HW_VCORE 41 IDE_IOR# 42
43 PCI_AD0 44 VCC_5V 43 IDE_IORDY 44 GND
45 PCI_AD1 46 VCC_5V 45 IDE_ACK# 46
47 VCC_5V 48 PCI_AD2 47 IDE_A1 48 ISA_ SBHE#
49 PCI_AD4 50 PCI_AD5 49 IDE_A0 50 ISA_AEN
51 PCI_AD3 52 GND 51 IDE_A2 52 ISA_SMEMW#
53 GND 54 PCI_C/BE0# 53 IDE_CS0# 54 ISA_IOCS16#
55 PCI_AD6 56 PCI_AD7 55 IDE_CS1# 56 ISA_LA23
57 PCI_AD8 58 GND 57 GND 58 ISA_SA19
59 GND 60 PCI_AD9 59 FDC_DENSEL 60 ISA_SMEMR#
61 PCI_AD10 62 PCI_AD11 61 FDC_INDEX# 62 ISA_IRQ10
ISA_
IOCHRDY
ISA_
MEMCS16#
63 VCC_3.3V 64 VCC_3.3V 63 FDC_MTR0# 64 ISA_LA22
65 N.C 66 PCI_AD14 65 N.C 66 ISA_SA18
67 PCI_AD12 68 PCI_AD13 67 FDC_DS0# 68 ISA_IOW#
69 PCI_AD15 70 VCC_3.3V 69 N.C 70 ISA_IRQ11
71 VCC_3.3V 72 PCI_C/BE1# 71 FDC_DIR# 72 ISA_LA21
73 VCC_3.3V 74 PCI_SERR# 73 FDC_STEP# 74 ISA_SA17
75 PCI_PAR 76 GND 75
77 GND 78 GND 77 FDC_WGATE# 78 ISA_IRQ12
79 GND 80 PCI_PERR# 79
Jumpers and Connectors
FDC_
WDATA#
FDC_TRACK0
#
76 ISA_IOR#
80 ISA_LA20
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STX88831 STX Evaluation Platform Module Series User’s Manual
SP1 SP2
Pin Description Pin Description Pin Description Pin Description
81 PCI_LOCK# 82 PCI_STOP# 81 FDC_WP# 82 ISA_SA16
83 VCC_3.3V 84 VCC_3.3V 83 FDC_RDATA# 84 ISA_DACK3#
85 VCC_3.3V 86 VCC_3.3V 85 FDC_HDSEL# 86 ISA_IRQ15
87 PCI_DEVSEL# 88 PCI_TRDY# 87
89 PCI_IRDY# 90 PCI_FRAME# 89 GND 90 ISA_SA15
91 GND 92 GND 91 LPT_STB# 92 ISA_DRQ3
93 GND 94 GND 93 LPT_AFD# 94 ISA_IRQ14
95 PCI_C/BE2# 96 PCI_AD16 95 LPT_PD0 96 ISA_LA18
97 PCI_AD17 98 PCI_AD18 97 LPT_ERROR# 98 ISA_SA14
99 VCC_3.3V 100 VCC_3.3V 99 LPT_PD1 100 ISA_DACK1#
101 VCC_3.3V 102 PCI_AD21 101 LPT_INIT# 102 ISA_LA17
FDC_DSKCHG
#
88 ISA_LA19
103 PCI_AD19 104 PCI_AD20 103 LPT_PD2 104 ISA_DACK0#
105 PCI_AD22 106 VCC_3.3V 105 LPT_SLIN# 106 ISA_DRQ1
107 USB2- 108 PCI_AD23 107 LPT_PD3 108 ISA_SA13
109 USB2+ 110 PCI_PME# 109 LPT_PD4 110 ISA_ MEMR#
111 USB3+ 112 GND 111 LPT_PD5 112 ISA_DRQ0
113 USB3- 114 PCI_AD24 113 LPT_PD6 114
115 PCI_CLK3 116 PCI_C/BE3# 115 LPT_PD7 116 ISA_SA12
117 PCI_AD25 118 GND 117 LPT_ACK# 118 ISA_ MEMW#
119 GND 120 PCI_AD26 119 LPT_BUSY 120 ISA_DACK5#
16
Jumpers and Connectors
ISA_
REFRESH#
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STX88831 STX Evaluation Platform Module Series User’s Manual
SP1 SP2
Pin Description Pin Description Pin Description Pin Description
121 PCI_AD28 122 PCI_AD29 121 LPT_PE 122 ISA_SYSCLK
123 PCI_AD27 124 VCC_3.3V 123 LPT_SLCT 124 ISA_SA11
125 VCC_3.3V 126 VCC_3.3V 125 GND 126 ISA_SD8
127 PCI_AD31 128 PCI_REQ1# 127
129 PCI_AD30 130 PCI_REQ0# 129
131 VCC_5V 132 VCC_5V 131
133 VCC_5V 134 VCC_5V 133
135 PCI_GNT0# 136 PCI_GNT2# 135
137 PCI_REQ2# 138 PCI_GNT1# 137
139 GND 140 GND 139
141 PCI_CLK1 142 GND 141
143 GND 144 PCI_CLK2 143
145 PCI_CLK0 146 VCC_5V 145
147 VCC_5V 148 N.C 147
149 FP_SCLK 150 FP_SDATA 149
151 PCI_RESET# 152 PCI_INTD# 151
153 PCI_INTC# 154 PCI_INTA# 153
155 PCI_INTB# 156 FP_BKL_EN 155
157 GND 158 FP_EDGE 157
DCD1#
RXD1
TXD1#
DTR1#
DSR1#
RTS1#
CTS1#
RI1#
DCD2#
RXD2
TXD2#
DTR2#
DSR2#
RTS2#
CTS2#
RI2#
128 ISA_DRQ5
130 ISA_IRQ7
132 ISA_SA10
134 ISA_SD9
136 ISA_DACK6#
138 ISA_IRQ6
140 ISA_SA9
142 ISA_SD10
144 ISA_DRQ6
146 ISA_IRQ5
148 ISA_SA8
150 ISA_SD11
152 ISA_DACK7#
154 ISA_IRQ4
156 ISA_SA7
158 ISA_SD12
159 FP_ VSYNC 160 FP_ HSYNC 159 GND 160 ISA_DRQ7
Jumpers and Connectors
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STX88831 STX Evaluation Platform Module Series User’s Manual
SP1 SP2
Pin Description Pin Description Pin Description Pin Description
161 FP_DSEL 162 GND 161 USB0- 162 ISA_IRQ3
163 FP_VDD_EN 164 FP_CLK_P 163 USB0+ 164 ISA_SA6
165 FP_BSEL 166 GND 165 GND 166 ISA_SD13
FP_DATA_EN
167
169 VCC_5V 170 VCC_5V 169 USB1+ 170 ISA_DACK2#
171 FP_D0 172 FP_D12 171 GND 172 ISA_SA5
173 FP_D1 174 FP_D13 173
175 FP_D2 176 GND 175
177 FP_D3 178 FP_D14 177
179 GND 180 FP_D15 179
181 FP_D4 182 FP_D16 181 GND 182 ISA_SD15
ABLE
168 FP_CLK_S 167 USB1- 168 VCC_5V
USB_0_1_OC
#
USB_2_3_OC
#
VGA_DCC_CL
K
VGA_DCC_DA
TA
174 ISA_SD14
ISA_
176
178 ISA_TC
180 ISA_SA4
MASTER#
183 FP_D5 184 FP_D17 183 VGA_GREEN 184 WOL
185 FP_D6 186 GND 185 GND 186 ISA_BALE
187 FP_D7 188 FP_D18 187 VGA_RED 188 ISA_SA3
189 GND 190 FP_D19 189 GND 190 VCC_5V
191 FP_D8 192 FP_D20 191 VGA_BLUE 192 ISA_SA2
193 FP_D9 194 FP_D21 193 GND 194
195 FP_D10 196 GND 195 VGA_VSYNC 196 ISA_SA1
197 FP_D11 198 FP_D22 197 GND 198 ISA_SA0
199 GND 200 FP_D23 199 VGA_HSYNC 200 GND
-- End of STX Connector Table --
18
Jumpers and Connectors
ISA_OSC
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STX88831 STX Evaluation Platform Module Series User’s Manual
CHAPTER 3
HARDWARE DESCRIPTION
3.1 Microprocessors
The STX88831 Series supports Intel®Atom™ N270 processor, which
make your system operated under Windows XP/Vista and Linux
environments. The system performance depends on the
microprocessor. Make sure your installed microprocessor with all
correct settings that prevent the CPU from damages.
3.2 BIOS
The STX88831 Series uses American Megatrends BIOS with 8Mbit
SPI Flash, DMI, Plug and Play.
3.3 System Memory
The STX88831 Series industrial CPU card supports one 200-pin
unbuffered DDR2 SO-DIMM socket for a maximum memory of 2GB
DDR2 SDRAM. The memory module can come in sizes of 128MB,
256MB, 512MB, 1GB and 2GB.
Hardware Description
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STX88831 STX Evaluation Platform Module Series User’s Manual
3.4 I/O Port Address Map
There are total 1KB port addresses (under OS WinXP) available for
assignment to other devices via I/O expansion cards.
Address Devices
0000-000F
0081-0083
0087
0089-008B
008F
00C0-00DF
0000-0CF7
0D00-FFFF
0020-0021
00A0-00A1
0040-0043 System timer
0060
0064
0061 System speaker
0070-0071 System CMOS/Real time clock
0274-0277
0279
0A79
02F8-02FF Communications Port (COM2)
0378-037F Printer Port (LPT1)
03B0-03BB
03C0-03DF
DC80-DC87
03F8-03FF Communications Port (COM1)
0400-041F Intel® 82801G (ICH7 Family) SMBus
DC00-DC1F Intel® 82801G (ICH7 Family) USB Universal
Direct Memory Access controller
PCI Bus
Interrupt controller
Standard 101/102 Key or Microsoft Natural
PS/2 Keyboard
ISAPNP Read Data Port
Mobile Intel® 945 Express Chipset Family
Controller
Host Controller
20
Hardware Description
Page 25
STX88831 STX Evaluation Platform Module Series User’s Manual
Address Devices
CC00-CC0F
CC80-CC83
D000-D007
D080-D083
D400-D407
D480-D4BF
D800-D8FF
E000-EFFF Intel® 82801G (ICH7 Family) PCI Express
EC00-ECFF Realtek PCIe FE Family Controller
FFA0-FFAF Intel® 82801G (ICH7 Family) Ultra ATA
Intel® 82801GBM/GHM (ICH7-M Family)
Serial ATA Storage Controller
Vinyl AC’97 codec Combo Driver (WDM)
Root Port
Storage Controllers
Hardware Description
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STX88831 STX Evaluation Platform Module Series User’s Manual
3.5 Interrupt Controller
The STX88831 Series is a 100% PC compatible control board. It
consists of 16 interrupt request lines, and four out of them can be
programmable. The mapping list of the 16 interrupt request lines is
shown as the following table.
IRQ Parity check error
IRQ0 System timer output
IRQ1 Standard 101/102 Key or Microsoft Natural PS/2
Keyboard
IRQ3 Communication Port (COM2)
IRQ4 Communication Port (COM1)
IRQ8 System CMOS/Real time clock
IRQ9 Microsoft ACPI Controller
IRQ11 Intel® 82801G (ICH7 Family) SMBus Controller
IRQ12 Microsoft PS/2 Mouse
IRQ13 Numeric data processor
IRQ14 Primary IDE Channel
IRQ16 Intel® 82801G (ICH7 Family) PCI Express Root
Port
IRQ16 Mobile Intel® 945 Express Chipset Family
IRQ16 Realtek PCIe FE Family Controller
IRQ17 Vinyl AC’97 codec Combo Driver (W D M)
IRQ19 Intel® 82801GBM/GHM (ICH7-M Family) Serial
ATA Storage Controller
IRQ23 Intel® 82801G (ICH7 Family) USB Universal Host
Controller
IRQ23 Intel® 82801G (ICH7 Family) USB2 Enhanced
Host Controller
22
Hardware Description
Page 27
STX88831 STX Evaluation Platform Module Series User’s Manual
3.6 Memory Map
Address Devices
00000000-
0009FFFF
000A0000000BFFFF
000A0000000BFFFF
000C0000000CFFFF
000D0000000DFFFF
000E0000-
000FFFFF
001000001F7FFFFF
1F800000 DFFFFFFF
D0000000-
DFFFFFFF
E4000000 –
FED8FFFF
FDF00000-
FDFFFFFF
FDFF0000-
FDFFFFFF
FE980000FE9FFFFF
FEA3B000-
FEA3B3FF
FEA3B400-
FEA3B4FF
FEA3B800-
FEA3B9FF
FEA3BC00-
FEA3BFFF
System board
Mobile Intel® 945 Express Chipset Family
PCI Bus
System board
PCI Bus
System board
System board
PCI Bus
Mobile Intel® 945 Express Chipset Family
PCI Bus
Intel® 82801G (ICH7 Family) PCI Express
Root Port
Realtek PCIe FE Family Controller
Mobile Intel® 945 Express Chipset Family
Intel® 82801GBM/GHM (ICH7-M Family)
Serial ATA Storage Controller
Vinyl AC’97 codec Combo Driver (WDM)
Vinyl AC’97 codec Combo Driver (WDM)
Intel® 82801G (ICH7 Family) USB2
Enhanced Host Controller
Hardware Description
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STX88831 STX Evaluation Platform Module Series User’s Manual
Address Devices
FEA40000-
FEA7FFFF
FEA80000FEAFFFFF
FEB00000FEAFFFFF
FEBFF000FEBFFFFF
Mobile Intel® 945 Express Chipset Family
Mobile Intel® 945 Express Chipset Family
Intel® 82801G (ICH7 Family) PCI Express
Root Port
Realtek PCIe FE Family Controller
24
Hardware Description
Page 29
MEMO
STX88831 STX Evaluation Platform Module Series User’s Manual
Hardware Description
25
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STX88831 STX Evaluation Platform Module Series User’s Manual
CHAPTER 4
AMI BIOS UTILITY
This chapter provides users with detailed description how to set up
basic system configuration through the AMIBIOS8 BIOS setup utility.
4.1 Starting
To enter the setup screens, follow the steps below:
1. Turn on the computer and press the <Del> key immediately.
2. After you press the <Delete> key, the main BIOS setup menu
displays. You can access the other setup screens from the main
BIOS setup menu, such as the Chipset and Power menus.
4.2 Navigation Keys
The BIOS setup/utility uses a key-based navigation system called hot
keys. Most of the BIOS setup utility hot keys can be used at any time
during the setup navigation process.
These keys include <F1>, <F10>, <Enter>, <ESC>, <Arrow> keys, and
so on.
Note Some of navigation keys differ from on e screen to anot he r.
26
AMI BIOS Utility
Page 31
Left/Right
Up/Down
+ Plus/Minus
STX88831 STX Evaluation Platform Module Series User’s Manual
The Left <Arrow> keys allow you to select a setup
screen.
The Up and Down <Arrow> keys allow you to select
a setup screen or sub-screen.
The Plus and Minus <Arrow> keys allow you to
change the field value of a particular setup item.
Tab
F1
F10
Esc
Enter
The <Tab> key allows you to select setup fields.
The <F1> key allows you to display the General
Help screen.
The <F10> key allows you to save any changes you
have made and exit Setup. Press the <F10> key to
save your changes.
The <Esc> key allows you to discard any changes
you have made and exit the Setup. Press the
<Esc> key to exit the setup without saving your
changes.
The <Enter> key allows you to display or change the
setup option listed for a particular setup item. The
<Enter> key can also allow you to display the setup
sub- screens.
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4.3 Main Menu
When you first enter the Setup Utility, you will enter the Main setup
screen. You can always return to the Main setup screen by selecting
the Main tab. There are two Main Setup options. They are described in
this section. The Main BIOS Setup screen is shown below.
System Time/Date
Use this option to change the system time and date. Highlight
System Time or System Date using the <Arrow> keys. Enter new
values through the keyboard. Press the <Tab> key or the <Arrow>
keys to move between fields. The date must be entered in
MM/DD/YY format. The time is entered in HH:MM:SS format.
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4.4 Advanced Menu
The Advanced menu allows users to set configuration of the CPU and
other system devices. You can select any of the items in the left frame
of the screen to go to the sub menus:
CPU Configuration
IDE Configuration
Floppy Configuration
SuperIO Configuration
Hardware Health CPU Configuration
ACPI Configuration
APM Configuration
MPS Configuration
PCI Express Configuration
USB Configuration
For items marked with “”, please press <Enter> for more options.
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CPU Configuration
This screen shows the CPU Configuration, and you can change
the value of the selected option.
Execute-Disable Bit Capability
This item helps you enable or disable the No-Execution
Page Protection Technology.
Hyper Threading Technology
Use this item to enable or disable Hyper-Threading
Technology, which makes a single physical processor
perform multi-tasking function as two logical ones.
Intel (R) SpeedStep (tm) tech
This item helps you enable or disable the Intel SpeedStep
Technology.
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Intel (R) C-STATE tech
Use this item to enable or disable the C-State technology .
Enhanced C-States
This item allows you to enable or disable any available
enhanced C-states ( C1E, C2E, C3E, C4E and Hard C4E).
IDE Configuration
You can use this screen to select options for the IDE Configuration,
and change the value of the selected option. A description of the
selected item appears on the right side of the screen. For items
marked with “”, please press <Enter> for more options.
ATA/IDE Configuration
Use this item to specify the integrated IDE controller. There
are three options for your selection: Disabled and
Compatible.
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Legacy IDE Channels
When the ATA/IDE Configuration is set to Compatible, this
item will be displayed.
Primary/Secondary IDE Master/Slave
Select one of the hard disk drives to configure IDE devices
installed in the system by pressing <Enter> for more
options.
Floppy Configuration
You can use this screen to select options for the Floppy
Configuration, and change the value of the selected option. A
description of the selected item appears on the right side of the
screen. For items marke d wi th “”, pleas e press <Ent er> fo r
more options.
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SuperIO Configuration
You can use this screen to select options for th e Sup erIO Configuration,
and change the value of the selected option. A description of the
selected item appears on the right side of the screen.
OnBoard Floppy Controller
Use this item to enable or disable the onboard floppy drive
controller.
Serial Port1 Address
This item specifies the base I/O port address and Interrupt
Request address of serial port 1. The Optimal setting is
3F8/IRQ4. The Fail-Safe default setting is Disabled.
Serial Port1 IRQ
This item specifies the IRQ used by the serial port 1.
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Serial Port2 Address
This item specifies the base I/O port address and Interrupt
Request address of serial port 2. The Optimal setting is
2F8/IRQ3. The Fail-Safe setting is Disabled.
Serial Port2 IRQ
This item specifies the IRQ used by the serial port 2.
Parallel Port Address
This item allows you to determine the I/O address for
onboard parallel port. There are several options for your
selection.
Parallel Port Mode
Select an operating mode for the onboard parallel (printer)
port.
Parallel Port IRQ
Use this item to set up the IRQ for onboard parallel port.
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Hardware Health Configuration
This screen shows the Hardware Health CPU Configuration, and a
description of the selected item appears on the right side of the
screen.
System Temperature/CPU Temperature
These items display the temperature of CPU and System,
Vcore, etc
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ACPI Configuration
You can use this screen to select options for the ACPI
Configuration, and change the value of the selected option. A
description of the selected item appears on the right side of the
screen.
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General ACPI Configuration
Scroll to this item and press <Enter> to view the General
ACPI Configuration sub menu, which contains General
ACPI (Advanced Configuration and Power Management
Interface) options for your configuration.
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Advanced ACPI Configuration
Scroll to this item and press <Enter> to view the Advanced
ACPI Configuration sub menu, which contains Advanced
ACPI (Advanced Configuration and Power Management
Interface) options for your configuration.
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APM Configuration
You can use this screen to select options for the APM
Configuration, and change the value of the selected option. A
description of the selected item appears on the right side of the
screen.
Power Management/APM
Set this item to allow Power Management/APM support.
The default setting is Enabled.
Disabled
Enabled
AMI BIOS Utility
Set this item to prevent the chipset power
management and APM (Advanced Power
Management) features.
Set this item to allow the chipset power
management and APM (Advanced Power
Management) features. This is the default
setting.
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Video Power Down Mode
This option specifies the Power State that the video
subsystem enters when the BIOS places it in a power
saving state after the specified period of display inactivity
has expired. The default setting is Suspend.
This setting prevents the BIOS from initiating any
Disabled
Standby
Suspend
power saving modes concerned with the video
display or monitor.
This option places the monitor into standby mode
after the specified period of display inactivity has
expired. This means the monitor is not off. The
screen will appear blacked out. The standards do
not cite specific power ratings because they vary
from monitor to monitor.
This option places the monitor into suspend mode
after the specified period of display inactivity has
expired. This means the monitor is not off. The
screen will appear blacked out. The standards do
not cite specific power ratings because they vary
from monitor to monitor, but this setting use less
power than Standby mode. This is the default
setting.
Hard Disk Drive Power Down Mode
This option specifies the power conserving state that the
hard disk drive enters after the specified period of hard
drive inactivity has expired. The default setting is Suspend.
Disabled
Standby
Suspend
Suspend Time Out (Minute)
This setting prevents hard disk drive power down
mode.
This option stops the hard disk drives from
spinning during a system standby.
This option cuts the power to the hard disk
drives during a system suspend. This is the
default setting.
This option specifies the length of time the system waits
before it enters suspend mode. The default setting is
Disabled.
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Disabled
1 Min
4 Min
10 Min
Throttle Slow Clock Ratio
This setting prevents the system from entering
suspend mode. This is the default setting.
Set this item to allow the computer system to enter
suspend mode after being inactive for 1 minute.
Set this item to allow the computer system to enter
suspend mode after being inactive for 4 minutes.
Set this item to allow the computer system to enter
suspend mode after being inactive for 10 minutes.
Use this item to specify the speed of the system clock
when running the power saving states.
Power Button Mode
This option specifies how the externally mounted power
button on the front of the computer chassis is used. The
default setting is On/Off.
Pushing the power button turns the computer
On/Off
Suspend
on or off. This is the default setting. This is the
default setting.
Pushing the power button places the computer
in Suspend mode or Full On power mode.
***** Advanced Resume Event Controls *****
Resume On RTC Alarm
You can set “Resume On RTC Alarm” item to enabled and
key in Data/time to power on system.
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MPS Configuration
This screen shows the MPS (Multi Processor Specification)
Configuration, and you can change its value. A description of the
selected item appears on the right side of the screen.
MPS Revision
Use this item to select MPS (Multi Processor Specification)
Revision 1.1 or 1.4.
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USB Configuration
You can use this screen to select options for the USB
Configuration, and change the value of the selected option. A
description of the selected item appears on the right side of the
screen.
USB 2.0 Controller Mode
Use this item to configure the USB 2.0 controller. The
default setting is HiSpeed.
Legacy USB Support
Use this item to enable or disable support for USB device
on legacy operating system. Th e default setting is Enabled.
BIOS EHCI Hand-Off
Enabling this item provide the support for operating
systems without an EHCI hand-off feature. The default
setting is Enabled.
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4.5 PCI PnP Menu
The PCI PnP menu allows users to change the advanced settings for
PCI/PnP devices.
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(2)
Clear NVRAM
Use this item to clear the data in the NVRAM (CMOS).
Here are the options for your selection, No and Yes.
Plug & Play O/S
When the setting is No, Use this item to configure all the
devices in the system. When the setting is Yes and if you
install a Plug and Play operating system, the operating
system configures the Plug and Play devices not required
for boot. The default setting is No.
PCI Latency Timer
This item controls how long a PCI device can hold the PCI
bus before another takes over. The longer the latency, the
longer the PCI device can retain control of the bus before
handing it over to another PCI device. There are several
options for your select i on .
Allocate IRQ to PCI VGA
This item allows BIOS to choose an IRQ to assign for the
PCI VGA card. Here are the options for your selection, No
and Yes.
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Palette Snooping
Some old graphic controllers need to “snoop” on the VGA
palette, and then map it to their display as a way to provide
boot information and VGA compatibility. This item allows
such snooping to take place. Here are the options for your
selection, Disabled and Enabled.
PCI IDE BusMaster
This item is a toggle for the built-in driver that allows the
onboard IDE controller to perform DMA (Direct Memory
Access) transfer. Here are the options for your selection,
Disabled and Enabled.
OffBoard PCI/ISA IDE Card
This item is for any other non-onboard PCI/ISA IDE
controller adapter. There are several options for your
selection.
IRQ3/4/5/7/9/10/11/14/15
These items will allow you to assign each system interrupt
a type, depending on the type of device using the interrupt.
The option “Available” means the IRQ is going to assign
automatically. Here are the options for your selection,
Available and Reserved.
DMA Channel 0/1/3/5/6/7
These items will allow you to assign each DMA channel a
type, depending on the type of device using the channel.
The option “Available” means the channel is going to
assign automatically. Here are the options for your
selection, Available and Reserved.
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4.6 Boot Menu
The Boot menu allows users to change boot options of the system. You
can select any of the items in the left frame of the screen to go to the
sub menus:
Boot Settings Configuration
LAN Boot Option
For items marked with “”, please press <Enter> for more options.
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Boot Settings Configuration
Quick Boot
Enabling this item lets the BIOS skip some power on self
tests (POST). The default setting is Enabled.
Boot Num-Lock
Use this item to select the power-on state for the NumLock.
The default setting is On.
PS/2 Mouse Support
This item determines if the BIOS should reserve IRQ12 for
the PS/2 mouse or allow other devices to make use of this
IRQ. Here are the options for your selection, Auto, Enabled
and Disabled.
Wait For ‘F1’ Of Error
If this item is enabled, the system waits for the F1 key to be
pressed when error occurs. The default setting is Enabled.
Hit ‘DEL’ Message Display
If this item is enabled, the system displays the message
“Press DEL to run Setup” during POST. The default setting
is Enabled.
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LAN Boot Option
Use these items to enable or disable the Boot ROM funct ion of the
onboard LAN chip when the system boots up.
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4.7 Security Menu
The Security menu allows users to change the security settings for the
system.
Supervisor Password
This item indicates whether a supervisor password has
been set. If the password has been installed, Installed
displays. If not, Not Installed displays.
User Password
This item indicates whether a user password has been set.
If the password has been installed, Installed displays. If not,
Not Installed displays.
Change Supervisor Password
Select this option and press <Enter> to access the sub
menu. You can use the sub menu to change the supervisor
password.
Change User Password
Select this option and press <Enter> to access the sub
menu. You can use the sub menu to change the user
password.
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4.8 Chipset Menu
The Chipset menu allows users to change the advanced chipset
settings. You can select any of the items in the left frame of the screen
to go to the sub menus:
North Bridge Configuration
South Bridge Configuration
For items marked with “”, please press <Enter> for more options.
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North Bridge Configuration
DRAM Frequency
This item allows you to control the Memory Clock.
Configure DRAM Timing by SPD
This item can enable or disable DRAM timing by SPD
(Serial Presence Detect) device, which is a small EEPROM
chip on the memory module, containing important
information about the module speed, size, addressing
mode and various parameters.
Memory Hole
You can reserve this area of system memory for ISA
adapter ROM. When this area is reserved it cannot be
cached. Check the user information of peripherals that
need to use this area o f system memory for the memory
requirements. Here are the options, Disabled and 15M-16M.
Boot Graphic Adapter Priority
This item allows you to select the graphics controller as the
primary boot device.
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Internal Graphics Mode Select
This item allows you to select the amount of system
memory used by the internal graphics device.
Video Function Configuration
Press <Enter> for the sub-menu for setting up video
function.
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South Bridge Configuration
AC97 Controller
This item allows you to enable or disable the AC97 audio
support.
Restore on AC Power Loss
This item can control how the PC will behave once power is
restored following a power outage, or other unexpected
shutdown.
PCIE Port 0 / PCIE Port 0 IOxAPIC
This item allows you to set or disable the PCI Express
Ports.
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4.9 Exit Menu
The Exit menu allows users to load your system configuration with
optimal or failsafe default values.
Save Changes and Exit
When you have completed the system configuration
changes, select this option to leave Setup and reboot the
computer so the new system configuration parameters can
take effect. Select Save Changes and Exit from the Exit
menu and press <Enter>. Select Ok to save changes and
exit.
Discard Changes and Exit
Select this option to quit Setup without making any
permanent changes to the system configuration. Select
Discard Changes and Exit from the Exit menu and press
<Enter>. Select Ok to discard changes and exit.
Load Optimal Defaults
It automatically sets all Setup options to a complete set of
default settings when you select this option. The Optimal
settings are designed for maximum system performance,
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but may not work best for all computer applications. In
particular, do not use the Optimal Setup options if your
computer is experiencing system configuration problems.
Select Load Optimal Defaults from the Exit menu and press
<Enter>.
Load Fail-Safe Defaults
It automatically sets all Setup options to a complete set of
default settings when you select this option. The Fail-Safe
settings are designed for maximum system stability, but not
maximum performance. Select the Fail-Safe Setup options
if your computer is experiencing system configuration
problems. Select Load Fail-Safe Defaults from the Exit
menu and press <Enter>. Select Ok to load Fail-Safe
defaults.
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APPENDIX A
WATCHDOG TIMER
Watchdog Timer Setting
After the system stops working for a while, it can be auto-reset by the
Watchdog Timer. The integrated Watchdog Timer can be set up in the
system reset mode by program.
Using the Watchdog Function
Start
Un-Lock WDT:
O 2E 87 ; Un-lock super I/O
O 2E 87 ; Un-lock super I/O
Select Logic device:
O 2E 07
O 2F 08
Activate WDT:
O 2E 30
O 2F 01
Set Second or Minute :
O 2E F5
O 2F N N=00 or 08(See below table)
Set base timer :
O 2E F6
O 2F M=00,01,02,…FF(Hex) ,Value=0 to 255
WDT counting re-set timer :
O 2E F6
O 2F M ; M=00,01,02,…FF(See below table)
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; IF to disable WDT:
O 2E 30
O 2F 00 ; Can be disable at any time
Timeout Value Range
1 to 255
Minute / Second
Program Sample
Watchdog Timer can be set to system reset after 5-second timeout.
2E, 87
2E, 87
2E, 07
2F, 08
2E, 30
2F, 01
2E, F5
2F, N
2E, F6
2F, M
Logical Device 8
Activate
Set Minute or Second
N=08 (Min),00(Sec)
Set Value
M = 00 ~ FF
Watchdog Timer
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APPENDIX B
DIGITAL I/O
Digital I/O Software Programming
(For STB86600 DIO Port)
Didital I/O Connector : DIO1
Pin Signal Pin Signal
1 Digital Output 0 (Bit 0) 2 Digital Input 0 (Bit 0)
3 Digital Output 1 (Bit 1) 4 Digital Input 1 (Bit 1)
5 Digital Output 2 (Bit 2) 6 Digital Input 2 (Bit 2)
7 Digital Output 3 (Bit 3) 8 Digital Input 3 (Bit 3)
9 Digital Output 4 (Bit 4) 10 Digital Input 4 (Bit 4)
11 Digital Output 5 (Bit 5) 12 Digital Input 5 (Bit 5)
13 Digital Output 6 (Bit 6) 14 Digital Input 6 (Bit 6)
15 Digital Output 7 (Bit 7) 16 Digital Input 7 (Bit 7)
17 GND 18 GND
19 N.C 20 N.C
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The Digital I/O on the board is not an isolated type :
Output Addres s Bit Input Address Bit
Out 0 123h 0 In 0 123h 0
Out 1 123h 1 In 1 123h 1
Out 2 123h 2 In 2 123h 2
Out3 123h 3 In 3 123h 3
Out 4 123h 4 In 4 123h 4
Out 5 123h 5 In 5 123h 5
Out 6 123h 6 In 6 123h 6
Out 7 123h 7 In 7 123h 7
DIO output program sample :
O 123 03
O 123 0A
Out 0, Out 1 is High, Out 2~7 is Low
(1 High , 0 Low)
Out 1, Out 3 is High, Out 0,2,4~7 is Low
(1 High , 0 Low)
***** The DIO input signal has to be TTL signal *****
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MEMO
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