Kontron COMe-cCT6 Instrukcja Użytkownika Strona 42
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COMe-cCT6 / Features and Interfaces
4.13 C-States
New generation platforms include power saving features like SuperLFM, EIST (P-States) or C-States in O/S idle mode.
Activated C-States are able to dramatically decrease power consumption in idle mode by reducing the Core Voltage or
switching of parts of the CPU Core, the Core Clocks or the CPU Cache.
Following C-States are defined:
C-State Description Function
C0 Operating CPU fully turned on
C1 Halt State Stops CPU main internal clocks via software
C1E Enhanced Halt Similar to C1, additionally reduces CPU voltage
C2 Stop Grant Stops CPU internal and external clocks via hardware
C2E Extended Stop Grant Similar to C2, additionally reduces CPU voltage
C3 Deep Sleep Stops all CPU internal and external clocks
C3E Extended Stop Grant Similar to C3, additionally reduces CPU voltage
C4 Deeper Sleep Reduces CPU voltage
C4E Enhanced Deeper Sleep Reduces CPU voltage even more and turns off the memory cache
C6 Deep Power Down Reduces the CPU internal voltage to any value, including 0V
C7 Deep Power Down Similar to C6, additionally LLC (LastLevelCache) is switched off
C-States are usually enabled by default for low power consumption, but active C-States my influence performance
sensitive applications or real-time systems.
» Active C6-State may influence data transfer on external Serial Ports
» Active C7-State may cause lower CPU and Graphics performance
It's recommended to disable C-States / Enhanced C-States in BIOS Setup if any problems occur.
42
- COMe-cCT6 1
- » Table of Contents « 3
- 1 User Information 6
- 1.5 Warranty 7
- 1.6 Technical Support 7
- 2 Introduction 8
- 2.5 COM Express® Benefits 9
- 3 Product Specification 10
- 3.2 Functional Specification 11
- Graphics Core 12
- Connectivity 13
- Misc Interfaces and Features 13
- Kontron Features 13
- Additional features 13
- Power Features 14
- 3.3 Block Diagram 15
- 3.4 Accessories 16
- 3.5 Electrical Specification 17
- 3.5.5 ATX Mode 18
- 3.5.6 Single Supply Mode 18
- 3.6 Power Control 19
- 3.7.2 Humidity 20
- WEEE Directive 21
- Conformal Coating 21
- Shock & Vibration 22
- PCB Specification 22
- 3.9 MTBF 23
- 3.10 Mechanical Specification 24
- 3.11 Module Dimensions 25
- 3.13 Onboard Connectors 27
- 3.13.1 FAN 28
- 3.13.2 CPU Debug & CPLD 28
- 4 Features and Interfaces 29
- 4.2 S5 Eco Mode 30
- 4.5 SPI boot 32
- Using an external SPI flash 33
- 4.6 M.A.R.S 34
- 4.7 UART 35
- 4.8 Fast I2C 36
- Configuration 37
- Time-out events 38
- WDT Signal 38
- 4.12 Speedstep Technology 41
- 4.13 C-States 42
- 4.14 Hyper Threading 43
- 4.15 Display Configuration 44
- DDI Design Consideration 46
- 4.16 Graphics Features 47
- 4.17 Hardware Configuration 47
- 4.20 USB 49
- 5 System Resources 50
- 5.3 I/O Address Map 51
- 5.5 I2C Bus 52
- 5.6 JILI I2C Bus 52
- 6 Connectors 53
- 7 Pinout List 54
- 7.2 Connector X1A Row A 55
- COMe-cCT6 / Pinout List 56
- 7.3 Connector X1A Row B 57
- 7.4 Connector X1B Row C 59
- 7.5 Connector X1B Row D 61
- 8 BIOS Operation 63
- 8.3 Setup Guide 65
- 8.4 POST Codes 65
- Displaying Submenus 66
- Item Specific Help Window 66
- General Help Window 66
- 8.5 BIOS Setup 67
- Platform Information 68
- 8.5.2 Advanced 69
- ACPI Settings 70
- Trusted Computing 71
- CPU Configuration 72
- Miscellaneous 73
- Watchdog 74
- Clock Control 75
- LAN Configuration 76
- Generic LPC Decode Ranges 77
- Smart Battery Configuration 78
- Battery Information 79
- GPIO Configuration 80
- Onboard I2C Speed 81
- Thermal Configuration 82
- CPU Thermal Configuration 83
- IDE Configuration 85
- Intel Fast Flash Standby 86
- USB Configuration 87
- SMART Settings 88
- Serial Port 0 Configuration 90
- Serial Port 1 Configuration 91
- Parallel Port Configuration 92
- Module COM port Configuration 93
- Serial Port 3 Configuration 94
- Serial Port 4 Configuration 95
- H/W Monitor 96
- COM Port allocation 97
- Console Redirection Settings 98
- 8.5.3 Chipset 99
- Host Bridge 100
- Memory Frequency and Timing 101
- Intel IGD Configuration 102
- South Bridge 103
- COMe-cCT6 / BIOS Operation 104
- PCI Express Root Port 0/1/2/3 105
- 8.5.4 Boot 106
- 8.5.5 Security 107
- Set HDD Password 108
- 8.5.6 Save & Exit 109
- Corporate Offices 110
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