Kontron COMe Starterkit Eval T2 Manual de usuario Pagina 84
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COM Express Interfaces
2.9.2. Reference Schematics
2.9.2.1. USB 3.0 Example
Figure 31: USB 3.0 Example Schematic
J5 incorporates a dual USB 3.0 Type A host receptacle. Note that the SuperSpeed pins are
separate from the USB 2.0 pins.
This reference design uses an over-current detection and protection device (U10) dedicated for
USB 3.0 with 1A current limit on each USB supply voltage line.
USB_0_1_OC# is an over-current signal that is input to COM Express Module. The signal is
driven low upon detection of overload, short-circuit or thermal trip, which causes the affected
USB Port power to turn off. Do not attach pull-ups to the OC signals on the COM Express
Carrier Board; this is done on the COM Express Module.
The OC# signal is asserted until the over-current or over-temperature condition is resolved.
USB0+/- through USB1+/- from the COM Express Module are routed through a common mode
choke to reduce radiated cable emissions. The part shown is a Taiyo Yuden CM01U900T; this
device has a common mode impedance of approximately 90 Ω at 100MHz. The common-mode
choke should be placed close to the USB connector. The SuperSpeed Signals
USB_SSR/TX0+/- through USB_SSR/TX1+/- from the COM Express Module are also routed
through a common mode choke to reduce radiated cable emissions. The part shown is a Taiyo
Yuden CM01S600T; this device has a common mode impedance of approximately 60 Ω at
100MHz. The common-mode choke should be placed close to the USB connector.
PICMG
®
COM Express
®
Carrier Board Design Guide Rev. 2.0 / December 6, 2013
84/218
1A
1A
2A
USB0_C+
V5.0_USB1_SW
V5.0_USB0_SW
V5.0_USB0_C
V5.0_USB1_C
USB_SSTX0_C-
USB_SSRX1_C-
USB_SSRX1_C+
USB_SSTX1_C-
USB_SSTX1_C+
USB_SSRX0_C-
USB_SSRX0_C+
USB_SSTX0_C+
USB1_C+
USB1_C-
USB0_C-
V5.0_USB1_C
V5.0_USB0_C
V5.0_USB
CEX
USB0+
CEX
USB0-
CEX
USB1+
CEX
USB1-
CEX
USB_0_1_OC#
CEX
USB_SSTX0-
CEX
USB_SSTX0+
CEX
USB_SSTX1+
CEX
USB_SSTX1-
C59
100n 10%50V
FB14
CM01S600T
+
C110
220u
16V
20%
D9
ESD5V3U2U-03LRH
1
2
3
R27 0R 5%
FB18
CM01U900T 20V
FB40
60R@ 100MHz
D7
ESD5V3U2U-03LRH
1
2
3
FB39
60R@ 100MHz
C124
100n
10%
50V
2
1
J5
Foxconn UEA1112C-8HS6-4F
S1
S1
S2
S2
S3
S3
S4
S4
VBUS2
D2-
D2+
GND2
VBUS1
D1-
D1+
GND1
StdA-SSRX1-
StdA-SSRX1+
GND-DRAIN1
StdA-SSTX1-
StdA-SSTX1+
StdA-SSRX2-
StdA-SSRX2+
GND-DRAIN2
StdA-SSTX2-
StdA-SSTX2+
D27A
MMBZ6V2ALT1GMMBZ6V2ALT1G
13
FB16
CM01S600T
U10
TPS206
VCC
2
EN1
3
EN2
4
GND
1
OUT1
7
OC1#
8
OC2#
5
OUT2
6
D12
ESD5V3U2U-03LRH
1
2
3
D11
ESD5V3U2U-03LRH
1
2
3
D8
ESD5V3U2U-03LRH
1
2
3
D27B
MM BZ6V2ALT1GMMBZ6V2ALT1G
23
FB15
CM01S600T
C58
100n 10%50V
FB13
CM01U900T 20V
D10
ESD5V3U2U-03LRH
1
2
3
+
C109
220u
16V
20%
FB17
CM01S600T
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
CEX
USB_SSRX1+
CEX
USB_SSRX1-
CEX
USB_SSRX0-
CEX
USB_SSRX0+
6
R4
0R
3
ENABLE_VBUS
- 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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