Feature Internal Pin Header - Seco COM-Express CCOMe-965 User Manual

3.3.22 Feature internal pin header

Feature internal pin header - CN26
Pin Signal
1 +3.3V_A
3 SMB_CK
5 SMB_DAT
7 SMB_ALERT#
9 BATLOW#
11 TPM_PP
13 GND
15 +3.3V_A
17 PS_ON
19 WDT
21 THRMTRIP#
23 THRM#
25 ---
27 GND
CCOMe-965
CCOMe-965 - Rev. First Edition: 1.0 - Last Edition: 3.0 - Author: S.B. - Reviewed by G.G. Copyright © 2016 SECO S.r.l.
Pin Signal
2 +3.3V_S
4 I2C_CK
6 I2C_DAT
8 LID#
10 SLEEP#
12 WAKE1#
14 GND
16 +3.3V_S
18 SUS_S3#
20 SUS_S4#
22 SUS_S5#
24 SUS_STAT#
26 PWR_OK
28 GND
For further expandability of the system, on board there is an expansion connector, which
carries out the signals related to Watch Dog, I2C bus, SM Bus, thermal and power
management. These signals allow implementing, through external expansion modules,
further functionalities that are not already realised by the carrier board.
For this purpose, it is available a dual row, 28 pin,
P2.54mm standard pin header, with the pinout shown
in the table on the left.
Almost all the signals available on this connector come out directly from the COM
Express connector; please check the related table for a description of the signals.
The PS_ON signal comes directly from ATX power connector (CN36).
SUS_Sx# signals, in reality, don't come directly from COM Express module, they are
biased using a Ultra High Speed CMOS buffer.
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