
www.dfi .comChapter 2 Concept
9
Chapter 2
Specification Comparison Table
The table below shows the COM Express standard specifications and the corresponding specifications supported on the BT968 module.
Note:
• 5 Indicates 12V-tolerant features on former VCC_12V signals.
• 6 Cells in the connected columns spanning rows provide a rough approximation of
features sharing connector pins.
Connector Feature
COM Express Module Base
Specification Type 6
(No IDE or PCI, add DDI+ USB3)
Min
Max
DFI BT968
Type 6
A-B
A-B
PCI Ex
ress Lanes 0 - 5 1 / 6 3
4 for BOM O
t.
A-B
LVDS Channel
0 / 1 1
A-B
LVDS Channel B 0 / 1 1
A-B
eDP on LVDS CH A
ins 0 / 1 0
A-B
VGA Port 0 / 1 1
A-B
V-Out N
N
A-B
DDI 0 N
N
A-B
5
Serial Ports 1 - 2 0 / 2 2
A-B
CAN interface on SER1 0 / 1 0
A-B
SATA / SAS Ports 1 / 4 2
A-B
AC’97 / HDA Di
ital Interface 0 / 1 1
A-B
USB 2.0 Ports 4 / 8 8
A-B
USB Clien
0 / 1 0
A-B
USB 3.0 Ports N
N
A-B
LAN Port 0 1 / 1 1
A-B
Ex
ress Card Su
ort 1 / 2 2
A-B
LPC Bus 1 / 1 1
A-B
SPI 1 / 2 1
A-B
SDIO
muxed on GPIO
0 / 1 0
General Pur
ose I/O 8 / 8 8
A-B
SMBus 1 / 1 1
A-B
I2C 1 / 1 1
A-B
Watchdo
Timer 0 / 1 1
A-B
S
eaker Ou
1 / 1 1
A-B
External BIOS ROM Su
or
0 / 2 1
A-B
Reset Functions 1 / 1 1
A-B
6
System I/O
System Management
Connector Feature
COM Express Module Base
Specification Type 6
(No IDE or PCI, add DDI+ USB3)
Min
Max
DFI BT968
Type 6
A-B
A-B Thermal Protection 0 / 1
1
A-B Battery Low Alarm 0 / 1
1
A-B Suspend/Wake Signals 0 / 3
3
A-B Power Button Support 1 / 1
1
A-B Power Good 1 / 1
1
A-B VCC_5V_SBY Contacts 4 / 4
4
A-B
5
Sleep Input 0 / 1
1
A-B
5
Lid Input 0 / 1
1
A-B
5
Fan Control Signals 0 / 2
2
A-B Trusted Platform Modules 0 / 1
1
A-B
A-B VCC_12V Contacts 12 / 12
12
Power Management
Power
Connector Feature
COM Express Module Base
Specification Type 6
(No IDE or PCI, add DDI+ USB3)
Min
Max
DFI BT968
Type 6
C-D
PCI Express Lanes 16 - 31 0 / 16
0
PCI Express Graphics (PEG) 0 / 1
0
Muxed SDVO Channels 1 - 2 NA
N
PCI Express Lanes 6 - 15 0 / 2
0
PCI Bus - 32 Bit NA
N
PATA Port NA
N
LAN Ports 1 - 2 NA
N
DDIs 1 - 3 0 / 3
2 (DDI 2 option with
onboard LVDS)
USB 3.0 Ports 0 / 4
1
C-D
C-D VCC_12V Contacts 12 / 12
12
System I/O
Power
C-D
6
C-D
6
Module Pin-out - Required and Optional Features C-D Connector. PICMG
®
COM.0Revision 2.1
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