Kontron COMe-cSP2 Manuale Utente Pagina 56
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- Indice
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COMe-cSP2 / Special Features
51
5.8 Fast I2C
The COMe-cSP2 integrates two configurable I2C buses. The external I2C provided via US15W GPIOs on COM Express®
Connector Pin B33/B34 and the JILI (LVDS) I2C from US15W SCH is available on COM Express® connector pin
A83/A84. See the BIOS resource list for reserved addresses. The I2C interface offers full MultiMaster and Clock
Stretching support. Fast I2C clock speed depends on the CPU performance and differs between ATOM™ Z510 and
ATOM™ Z530 modules. See the tables below for measured values on COMe-cSP2.
JIDA/external I2C speed
Setup
ATOM™ Z510
ATOM™ Z530
Extra high
not supported
not supported
Very high
150 kHz
210 kHz
High
80 kHz
110 kHz
Medium
40 kHz
60 kHz
Slow
11 kHz
16 kHz
Very slow
1.5 kHz
2 kHz
Ultra slow
0.8 kHz
1 kHz
JILI I2C speed
Setup
ATOM™ Z510
ATOM™ Z530
Extra high
not supported
not supported
Very high
90 kHz
125 kHz
High
36 kHz
50 kHz
Medium
18 kHz
25 kHz
Slow
2.8 kHz
4 kHz
Very slow
1.0 kHz
1.3 kHz
Ultra slow
not supported
not supported
- COMe-cSP2 1
- » Table of Contents « 3
- 1 User Information 6
- 1.5 Warranty 7
- 1.6 Technical Support 7
- 2 Introduction 8
- 2.4 COM Express® Benefits 10
- 3 Specification 11
- Display Interfaces 12
- Storage 12
- Onboard devices: 12
- Additional Interfaces: 12
- Power Management & Misc 13
- 3.1.1 Available Modules 13
- Intel® SCH 14
- » 95 mm x 95 mm ±0.2 mm 15
- 3.4.1 Supply Voltage 16
- Power Supply Risetime 16
- Supply Voltage Ripple 16
- Temperature 17
- Humidity 17
- 3.5 MTBF 18
- 4 COMe-cSP2 Connector 19
- 4.2 Pinout List 20
- 4.2.2 Connector X1A - Row A 21
- 4.2.3 Connector X1A - Row B 24
- 4.2.4 Connector X1B - Row C 27
- 4.2.5 Connector X1B - Row D 30
- 4.3 Signal Description 34
- 4.3.2 USB 35
- USB Client Port 36
- Configuration 36
- 4.3.3 SATA 37
- 4.3.4 Audio 38
- 4.3.5 Serial IRQ 38
- 4.3.6 Graphics Interface 39
- 4.3.7 Ethernet 41
- » with Z530 CPU: 33MHz 42
- » with Z510 CPU: 25MHz 42
- Zero Delay Clock Buffer 43
- Overview of LPC Adresses 44
- 5 Special Features 48
- 5.3 Speedstep Technology 49
- Onboard miniSD/MMC Socket J4 50
- SD card compatibility 51
- SD recommendations 51
- 5.5 Watchdog 52
- COMe-cSP2 / Special Features 53
- JIDA32 for Windows: 53
- K-Station for Windows: 53
- 5.7 Flash Backup Feature 54
- » Change your BIOS settings 55
- 5.8 Fast I2C 56
- 6 Design Consideration 58
- » Mates with: 51021-0300 60
- » Imax: 0.40 A 61
- 7 System Ressources 62
- 7.1.2 In APIC mode 63
- 7.2 Memory Area 64
- 7.3 I/O Address Map 65
- 7.5 External I2C Bus #1 66
- 7.6 External I2C Bus #2 66
- 7.7 JILI I2C Bus 66
- 7.8 SDVO I2C Bus 66
- Hardware Monitor 68
- 8 BIOS Operation 69
- 8.3 BIOS Setup 71
- Module Component Steppings 72
- Current LVDS Configuration 72
- 8.3.3 Advanced Menu 73
- CPU Configuration 74
- Legacy Devices Configuration 75
- ACPI Configuration 89
- Miscellaneous 96
- Miscellaneous - Watchdog 97
- I2C Buses 100
- COMe-cSP2 / BIOS Operation 101
- SMBIOS Configuration 102
- 8.3.4 PCI/PnP Settings 103
- 8.3.5 Boot Settings 104
- Boot Settings Configuration 105
- 8.3.6 Security Settings 106
- Trusted Computing 107
- 8.3.7 Exit Options 108
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