Serial interface, 15 serial interface – Kontron COMe Eval Carrier T10 User Manual
Page 39

COM Express® Eval Type 10
/ Connectors and Features
36
5.15 Serial Interface
The PICMG COM.0 specification revision 2.0 defines two optional 2-pin serial interfaces on COM Express® connector
pins A98/A99 and A101/A102 formerly used for 12V VCC input. Both new interfaces are available directly on optional
pin-header J83 and J84.
J78 and J79 allow both interfaces to be used as 2-pin RS232 interfaces COMA and COMB with Kontron Adapter cable
Pin
J78 (COMA)
J79 (COMB)
J83 (SER0, A98/99)
J84 (SER1, A101/102)
1
n.c.
n.c.
+5V
+5V
2
n.c.
n.c.
SER0_TX
SER1_TX
3
RX0
RX1
SER0_RX
SER1_RX
4
n.c.
n.c.
GND
GND
5
TX0
TX1
-
-
6
n.c.
n.c.
-
-
7
n.c.
n.c.
-
-
8
n.c.
n.c.
-
-
9
GND
GND
-
-
10
+5V
+5V
-
-
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