Kontron COMe Starterkit Eval T2 Manual de usuario Pagina 11
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Preface
1.8. Acronyms, Abbreviations and Definitions Used
Table 1: Acronyms, Abbreviations and Definitions Used
Term Description
AC ‘97 / HDA Audio CODEC '97/High Definition Audio
ACPI Advanced Configuration Power Interface – standard to implement power saving modes in PCAT
systems
ADD2 Advanced Digital Display, 2
nd
Generation
ADD2/MEC Advanced Digital Display, 2
nd
Generation, Media Expansion Card
Basic Module COM Express® 125mm x 95mm Module form factor.
BIOS Basic Input Output System – firmware in PC-AT system that is used to initialize system
components before handing control over to the operating system.
CAN Controller-area network (CAN or CAN-bus) is a vehicle bus standard designed to allow
microcontrollers to communicate with each other within a vehicle without a host computer.
Carrier Board An application specific circuit board that accepts a COM Express® Module.
Compact Module COM Express® 95mm x 95mm Module form factor
CRT Cathode Ray Tube
DAC Digital Analog Converter
DDC Display Data Control – VESA (Video Electronics Standards Association) standard to allow
identification of the capabilities of a VGA monitor
DDI Digital Display Interface– containing DisplayPort, HDMI/DVI and SDVO
DNI Do Not Install
DP DisplayPort is a digital display interface standard put forth by the Video Electronics Standards
Association (VESA). It defines a new license free, royalty free, digital audio/video
interconnect, intended to be used primarily between a computer and its display monitor.
DVI Digital Visual Interface - a Digital Display Working Group (DDWG) standard that defines a
standard video interface supporting both digital and analog video signals. The digital signals
use TMDS.
EAPI Embedded Application Programming Interface
Software interface for COM Express® specific industrial functions
• System information
• Watchdog timer
• I2C Bus
• Flat Panel brightness control
• User storage area
• GPIO
EDID Extended Display Identification Data
EDP Embedded DisplayPort (eDP) is a digital display interface standard produced by the Video
Electronics Standards Association (VESA) for digital interconnect of Audio and Video.
EEPROM Electrically Erasable Programmable Read-Only Memory
EFT Electrical Fast Transient
EMI Electromagnetic Interference
ESD Electrostatic Discharge
ExpressCard A PCMCIA standard built on the latest USB 2.0 and PCI Express buses.
Extended Module COM Express® 155mm x 110mm Module form factor.
FR4 A type of fiber-glass laminate commonly used for printed circuit boards.
Gb Gigabit
GbE Gigabit Ethernet
GPI General Purpose Input
GPIO General Purpose Input Output
GPO General Purpose Output
HDA Intel High Definition Audio (HD Audio) refers to the specification released by Intel in 2004 for
delivering high definition audio that is capable of playing back more channels at higher quality
than AC97.
PICMG
®
COM Express
®
Carrier Board Design Guide Rev. 2.0 / December 6, 2013
11/218
- COM Express® 1
- Carrier Design Guide 1
- Contents 3
- 1. Preface 8
- 1.6. Name and logo usage 9
- 1.7. Intellectual property 10
- Term Description 11
- 1.10. Schematic Conventions 15
- 2. COM Express Interfaces 16
- COM Expre ss Module 17
- Type 10 17
- Table 4: Pin-out Comparison 20
- , the PCI 30
- 2.3.5. Schematic Examples 34
- Signal Pin Description I/O 45
- Figure 15: ExpressCard Size 45
- 2.4.1. Signal Definitions 48
- 2.4.2. PEG Configuration 49
- 2.4.3. Reference Schematics 52
- DisplayPort is supported 55
- DisplayPort Example 56
- Figure 21: HDMI Example 57
- Figure 22: DVI Example 59
- SDVO Port Configuration 61
- Supported SDVO Devices 62
- DVI_SDAROM 63
- DVI_SCLROM 63
- SDVO I2C Bus Address 63
- Write = 0111 0000 (70h) 63
- Read = 0111 0001 (71h) 63
- 2.6.1. Signal Definitions 66
- Earliest asserted 1ms after 68
- 3.3V, 5V and 12V are stable 68
- 2.7. LAN 70
- 2.7.2. Reference Schematics 73
- 2.8. USB Ports 76
- 2.8.2. Reference Schematics 77
- 2.9. USB 3.0 81
- 2.9.1.3. USB 3.0 connector 83
- 2.9.2. Reference Schematics 84
- 2.10. SATA 87
- Pins Signal Description 88
- SATA Port 89
- 2.11. LVDS 91
- Term Definition 94
- 2.11.2. Reference Schematics 97
- 2.12.1. Signal Definitions 99
- 2.12.2. Reference Schematics 100
- 2.13. VGA 101
- COM Express Interfaces 102
- 2.14. TV-Out 104
- COM Express Module 106
- AUDIO POWER 107
- AUDIO CODEC - ALC888 107
- ANALOG I/O CONNECTOR 107
- 2.15.1.2. AC'97 108
- Figure 41: Audio Amplifier 109
- 2.16.1. Signal Definition 111
- SUPER I/O 115
- COM1/COM2 116
- 2.17.1. Signal Definition 118
- 2.18.1. Signal Definitions 121
- 2.18.2. Reference Schematics 121
- 2.19.1. Signal Definitions 123
- 2.20.1. Signal Definitions 125
- C O M 1 C O M 2 126
- 2.21. CAN Interface 127
- 2.21.2. Reference Schematics 128
- 2.22. Miscellaneous Signals 129
- POWER ATX 133
- POWER AT 133
- Type 2 Detection 133
- 2.22.5. Watchdog Timer 137
- G P IO C o n n e c t o r 141
- 2.22.8. Fan Connector 142
- 2.22.9. Thermal Interface 143
- 2.23. PCI Bus 147
- 2.23.2. Reference Schematics 148
- 2.24.1. Signal Definitions 153
- 3. Power and Reset 156
- 3.2.1. ATX vs AT Supplies 157
- 3.2.2. Power States 157
- Power and Reset 158
- 3.2.5. Power Button 162
- 3.4. Reference Schematics 164
- Table 55: ATX Signal Names 166
- ATX Signal Name Description 166
- 3.5. Routing Considerations 167
- 3.5.3. VCC5_SBY Routing 168
- 4. BIOS Considerations 170
- Type Height Partnumber Note 171
- COM Express Module Connectors 172
- GND Plane 173
- Power Plane 173
- COM Express 175
- Table 60: Trace Parameters 176
- Symbol Definition 176
- Carrier Board 178
- Parameter Trace Routing 183
- Extended 194
- 7.2. Heatspreader 195
- (Ø2.7mm bore hole) 196
- (M2.5 thread) 196
- (Ø2.7 bore hole) 197
- Mechanical Considerations 198
- 8.3. Useful books 202
- 9.1. TV-Out 203
- 9.1.5. Signal Termination 206
- 9.1.6. Video Filter 206
- 9.1.7. ESD Protection 206
- 9.2. LPC Firmware Hub 207
- Appendix C: List of Tables 213
- Appendix D: List of Figures 215
- Table 79: Revision History 217
- Revision Date Author Changes 217
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