Seco Qseven CQ7-A30 User Manual page 61

3.3.24 Feature internal pin header
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.
Feature pin header - CN4
Pin Signal
1 +5V_S
3 +3.3V_S
5 GP0_I2C_DAT
7 GP0_I2C_CLK
9 N.C.
11 N.C.
13 PSON#
15 SUS_S3#
17 GND
19 THRMTRIP#
21 N.C.
23 SUS_STAT#
25 N.C.
27 WDTRIG#
29 WDOUT
31 BATLOW#
33 LVDS_DID_DAT
35 LVDS_DID_CLK
37 GND
39 PWRBTN#
CQ7-A30
CQ7-A30 - Rev. First Edition: 1.0 - Last Edition: 2.0 - Author: S.B. - Reviewed by G.G. Copyright © 2016 SECO S.r.l.
Pin Signal
2 +5V_A
4 HDD_ACT#
6 SMB_CLK
8 SMB_DAT
10 GP_PWM_OUT0
12 GP_PWM_OUT1
14 GP_PWM_OUT2
16 1-Wire_Bus
18 GND
20 SMB_ALERT#
22 N.C.
24 GP_TIMER_IN
26 SUS_S5#
28 THRM#
30 N.C.
32 WAKE#
34 N.C.
36 RSTBTN#
38 GND
40 PWGIN
For this purpose, it is available a dual row, 40 pin,
P2.54mm standard pin header, with the pinout shown
in the table on the left.
HDD_ACT#: Disk drive activity signal, active low. It is derived as the logical AND of
SDIO_ACT# and SATA_ACT# signals.
PSON#: this signal (+5V_A electrical level) is derived by inverting SUS_S3# signal.
The signals not described until now come out directly from the Qseven
please check the related table for a description of them.
A special consideration has to be made on signal GP_PWM_OUT[0..2] and
GP_TIMER_IN.
These, indeed, are multiplexed signals available on Qseven
can be used, respectively, also as LVDS_BLT_CTRL, FAN_PWMOUT, SPKR and
FAN_TACHOIN.
By using the dedicated Dip Switch SW11, it is possible to select individually if these
signals must have the specific or the General Purpose functionality.
SW11 Switch ON Position
1 LVDS_BLT_CTRL
2 FAN_PWMOUT
3 SPKR
4 FAN_TACHOIN
®
®
card edge connector, which
Setting of these signals
OFF Position
can be made according
GP_PWM_OUT0
to the table on the left.
GP_PWM_OUT1
GP_PWM_OUT2
GP_TIMER_IN
connector;
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