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9
Specification Comparison Table
The table below shows the COM Express standard specifications and the corresponding specifications supported on the AL9A8 module.
Module Pin-out - Required and Optional Features C-D Connector. PICMG
®
COM Express
®
Revision 2.1
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.
PICMG
®
COM.0
COM Express
®
Module Base Specification
Revision 2.1
3 Required and Optional Features
3.2 Module Pin-out Types 1-6 & 10 - Required and Optional Features
COM Express Required and Optional features are summarized in the following table. The features identified as Minimum (Min.)
shall
Table 3.2: Module Pin-out - Required and Optional Features A-B Connector
Connector
Feature
COM Express Module Base
Specification Type 10
(Single Connector) Min / Max
DFI AL9A8
Type 10
A-B
A-B
PCI Express Lanes 0 - 5
1 / 4
4
A-B
LVDS Channel A
0 / 1
1
A-B
LVDS Channel B
NA
NA
A-B
eDP on LVDS CH A pins
0 / 1
1(option)
A
N
tr
o
P
A
G
V
B
-
A
NA
A
N
t
u
O
-
V
T
B
-
A
NA
1
/
0
0
I
D
D
B
-
A
1
A-B
5
Serial Ports 1 - 2
0 / 2
2
A-B
CAN interface on SER1
0 / 1
1
A-B
SATA / SAS Ports
1 / 2
2
A-B
AC’97 / HDA Digital Interface
0 / 1
1
8
/
4
s
tr
o
P
0
.
2
B
S
U
B
-
A
8
1
/
0
t
n
e
il
C
B
S
U
B
-
A
0
2
/
0
s
tr
o
P
0
.
3
B
S
U
B
-
A
2
1
/
1
0
t
r
o
P
N
A
L
B
-
A
1
A-B
Express Card Support
0 / 2
2
1
/
1
s
u
B
C
P
L
B
-
A
1
2
/
1
I
P
S
B
-
A
1
A-B
SDIO (muxed on GPIO)
0 / 1
1(option)
General Purpose I/O
8 / 8
8
1
/
1
s
u
B
M
S
B
-
A
1
1
/
1
C
2
I
B
-
A
1
A-B
Watchdog Timer
0 / 1
1
1
/
1
t
u
O
r
e
k
a
e
p
S
B
-
A
1
A-B
External BIOS ROM Support
0 / 2
1
A-B
Reset Functions
1 / 1
1
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 10
(Single Connector) Min / Max
DFI AL9A8
Type 10
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
1
/
1
d
o
o
G
r
e
w
o
P
B
-
A
1
A-B
VCC_5V_SBY Contacts
4 / 4
4
A-B
5
1
/
0
t
u
p
n
I
p
e
e
l
S
1
A-B
5
1
/
0
t
u
p
n
I
d
i
L
1
A-B
5
Fan Control Signals
0 / 2
2
A-B
Trusted Platform Modules
0 / 1
0
A-B
A-B
VCC_12V Contacts
12 / 12
12
Table 3.3: Module Pin-out - Required and Optional Features C-D Connector
Connector
Feature
COM Express Module Base
Specification Type 10
(Single Connector) Min / Max
DFI AL9A8
Type 10
C-D
PCI Express Lanes 16 - 31
NA
NA
PCI Express Graphics (PEG)
NA
NA
Muxed SDVO Channels 1 - 2
NA
NA
PCI Express Lanes 6 - 15
NA
NA
PCI Bus - 32 Bit
NA
NA
A
N
tr
o
P
A
T
A
P
NA
A
N
2
-
1
s
tr
o
P
N
A
L
NA
A
N
3
-
1
s
I
D
D
NA
A
N
s
tr
o
P
0
.
3
B
S
U
NA
C-D
C-D
VCC_12V Contacts
NA
NA
Power
System I/O
C-D
6
C-D
6
Power
Change Key:
System I/O
System Management
A-B
6
Power Management
PICMG
®
COM.0
COM Express
®
Module Base Specification
Revision 2.1
3 Required and Optional Features
3.2 Module Pin-out Types 1-6 & 10 - Required and Optional Features
COM Express Required and Optional features are summarized in the following table. The features identified as Minimum (Min.)
shall
Table 3.2: Module Pin-out - Required and Optional Features A-B Connector
Connector
Feature
COM Express Module Base
Specification Type 10
(Single Connector) Min / Max
DFI AL9A8
Type 10
A-B
A-B
PCI Express Lanes 0 - 5
1 / 4
4
A-B
LVDS Channel A
0 / 1
1
A-B
LVDS Channel B
NA
NA
A-B
eDP on LVDS CH A pins
0 / 1
1(option)
A
N
t
r
o
P
A
G
V
B
-
A
NA
A
N
t
u
O
-
V
T
B
-
A
NA
1
/
0
0
I
D
D
B
-
A
1
A-B
5
Serial Ports 1 - 2
0 / 2
2
A-B
CAN interface on SER1
0 / 1
1
A-B
SATA / SAS Ports
1 / 2
2
A-B
AC’97 / HDA Digital Interface
0 / 1
1
8
/
4
s
t
r
o
P
0
.
2
B
S
U
B
-
A
8
1
/
0
t
n
e
il
C
B
S
U
B
-
A
0
2
/
0
s
t
r
o
P
0
.
3
B
S
U
B
-
A
2
1
/
1
0
t
r
o
P
N
A
L
B
-
A
1
A-B
Express Card Support
0 / 2
2
1
/
1
s
u
B
C
P
L
B
-
A
1
2
/
1
I
P
S
B
-
A
1
A-B
SDIO (muxed on GPIO)
0 / 1
1(option)
General Purpose I/O
8 / 8
8
1
/
1
s
u
B
M
S
B
-
A
1
1
/
1
C
2
I
B
-
A
1
A-B
Watchdog Timer
0 / 1
1
1
/
1
t
u
O
r
e
k
a
e
p
S
B
-
A
1
A-B
External BIOS ROM Support
0 / 2
1
A-B
Reset Functions
1 / 1
1
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 10
(Single Connector) Min / Max
DFI AL9A8
Type 10
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
1
/
1
d
o
o
G
r
e
w
o
P
B
-
A
1
A-B
VCC_5V_SBY Contacts
4 / 4
4
A-B
5
1
/
0
t
u
p
n
I
p
e
e
l
S
1
A-B
5
1
/
0
t
u
p
n
I
d
i
L
1
A-B
5
Fan Control Signals
0 / 2
2
A-B
Trusted Platform Modules
0 / 1
0
A-B
A-B
VCC_12V Contacts
12 / 12
12
Table 3.3: Module Pin-out - Required and Optional Features C-D Connector
Connector
Feature
COM Express Module Base
Specification Type 10
(Single Connector) Min / Max
DFI AL9A8
Type 10
C-D
PCI Express Lanes 16 - 31
NA
NA
PCI Express Graphics (PEG)
NA
NA
Muxed SDVO Channels 1 - 2
NA
NA
PCI Express Lanes 6 - 15
NA
NA
PCI Bus - 32 Bit
NA
NA
A
N
t
r
o
P
A
T
A
P
NA
A
N
2
-
1
s
t
r
o
P
N
A
L
NA
A
N
3
-
1
s
I
D
D
NA
A
N
s
t
r
o
P
0
.
3
B
S
U
NA
C-D
C-D
VCC_12V Contacts
NA
NA
Power
System I/O
C-D
6
C-D
6
Power
Change Key:
System I/O
System Management
A-B
6
Power Management
PICMG
®
COM.0
COM Express
®
Module Base Specification
Revision 2.1
3 Required and Optional Features
3.2 Module Pin-out Types 1-6 & 10 - Required and Optional Features
COM Express Required and Optional features are summarized in the following table. The features identified as Minimum (Min.)
shall
Table 3.2: Module Pin-out - Required and Optional Features A-B Connector
Connector
Feature
COM Express Module Base
Specification Type 10
(Single Connector) Min / Max
DFI AL9A8
Type 10
A-B
A-B
PCI Express Lanes 0 - 5
1 / 4
4
A-B
LVDS Channel A
0 / 1
1
A-B
LVDS Channel B
NA
NA
A-B
eDP on LVDS CH A pins
0 / 1
1(option)
A
N
t
r
o
P
A
G
V
B
-
A
NA
A
N
t
u
O
-
V
T
B
-
A
NA
1
/
0
0
I
D
D
B
-
A
1
A-B
5
Serial Ports 1 - 2
0 / 2
2
A-B
CAN interface on SER1
0 / 1
1
A-B
SATA / SAS Ports
1 / 2
2
A-B
AC’97 / HDA Digital Interface
0 / 1
1
8
/
4
s
t
r
o
P
0
.
2
B
S
U
B
-
A
8
1
/
0
t
n
e
il
C
B
S
U
B
-
A
0
2
/
0
s
t
r
o
P
0
.
3
B
S
U
B
-
A
2
1
/
1
0
t
r
o
P
N
A
L
B
-
A
1
A-B
Express Card Support
0 / 2
2
1
/
1
s
u
B
C
P
L
B
-
A
1
2
/
1
I
P
S
B
-
A
1
A-B
SDIO (muxed on GPIO)
0 / 1
1(option)
General Purpose I/O
8 / 8
8
1
/
1
s
u
B
M
S
B
-
A
1
1
/
1
C
2
I
B
-
A
1
A-B
Watchdog Timer
0 / 1
1
1
/
1
t
u
O
r
e
k
a
e
p
S
B
-
A
1
A-B
External BIOS ROM Support
0 / 2
1
A-B
Reset Functions
1 / 1
1
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 10
(Single Connector) Min / Max
DFI AL9A8
Type 10
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
1
/
1
d
o
o
G
r
e
w
o
P
B
-
A
1
A-B
VCC_5V_SBY Contacts
4 / 4
4
A-B
5
1
/
0
t
u
p
n
I
p
e
e
l
S
1
A-B
5
1
/
0
t
u
p
n
I
d
i
L
1
A-B
5
Fan Control Signals
0 / 2
2
A-B
Trusted Platform Modules
0 / 1
0
A-B
A-B
VCC_12V Contacts
12 / 12
12
Table 3.3: Module Pin-out - Required and Optional Features C-D Connector
Connector
Feature
COM Express Module Base
Specification Type 10
(Single Connector) Min / Max
DFI AL9A8
Type 10
C-D
PCI Express Lanes 16 - 31
NA
NA
PCI Express Graphics (PEG)
NA
NA
Muxed SDVO Channels 1 - 2
NA
NA
PCI Express Lanes 6 - 15
NA
NA
PCI Bus - 32 Bit
NA
NA
A
N
t
r
o
P
A
T
A
P
NA
A
N
2
-
1
s
t
r
o
P
N
A
L
NA
A
N
3
-
1
s
I
D
D
NA
A
N
s
t
r
o
P
0
.
3
B
S
U
NA
C-D
C-D
VCC_12V Contacts
NA
NA
Power
System I/O
C-D
6
C-D
6
Power
Change Key:
System I/O
System Management
A-B
6
Power Management