Msata Slot - Seco COM-Express CCOMe-965 User Manual

3.3.3 mSATA slot

mSATA Slot - CN28
Pin Signal Pin
1 N.C.
3 N.C.
5 N.C.
7 N.C.
9 GND
11 N.C.
13 N.C.
15 GND
17 N.C.
19 N.C.
21 GND
23 SATA2_RX+
25 SATA2_RX-
27 GND
29 GND
31 SATA2_TX-
33 SATA2_TX+
35 GND
37 GND
39 +3.3V_S
41 +3.3V_S
43 N.C.
45 N.C.
47 N.C.
49 N.C.
51 mSATA_DET#
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.
Signal
2 +3.3V_S
4 GND
6 N.C.
8 N.C.
10 N.C.
12 N.C.
14 N.C.
16 N.C.
18 GND
20 N.C.
22 N.C.
24 +3.3V_S
26 GND
28 N.C.
30 N.C.
32 N.C.
34 GND
36 N.C.
38 N.C.
40 GND
42 N.C.
44 N.C.
46 N.C.
48 N.C.
50 GND
52 +3.3V_S
To increase mass storage possibilities, it is possible to use
mSATA Solid State Disks, using the dedicate connector, CN28,
which is a standard 52pin miniPCI Express connector, type
LOTES p/n AAA-PCI-047-K01 or equivalent, H=9.0mm, with the
pinout shown in the table on the left.
Signals carried to mSATA slot are the following:
SATA2_TX+/SATA2_TX-: Serial ATA Channel #2 Transmit
differential pair.
SATA2_RX+/SATA2_RX-: Serial ATA Channel #2 Receive differential pair.
mSATA_DET#: mSATA device presence detection pin. This signal is pulled-up at +3.3V_S
through a 330Ω resistor and a red LED. When a mSATA disk is plugged into the slot, the red
LED (D26) will light.
Please be aware that mSATA slot will work only in case the COM Express module carries
out SATA Channel #2 on COM Express connector (pins A22, A23, A25 and A26). In case
the COM Express module used doesn't have these signals connected, then this slot will not
be usable.
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