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Both mSATA and Mini PCIe share the same form factor and similar electrical
pinout assignments on their connectors. There was no clear mechanism to
distinguish if a mSATA drive or a Mini PCIe device is plugged into the socket
until recently that SATA I/O issued an ECN change (ECN #045) to redefine pin-
43 on mSATA connector as "no connect" instead of "return current path" (or
GND).
When an mSATA drive is inserted, its pin-43 is "no connect", and the respective
pin on the socket is being pulled-up to logic 1. When a Mini PCIe device is
inserted, its pin-43 forces the respective pin on the socket to ground, or logic 0.
MTC-6000 using JP7 Pin-43 status designed for switching between mSATA
drive and Mini PCIe device.
Header
1-2
2-4
The pin assignments of CN13 are listed in the following table :
Pin No.
51
49
47
45
43
41
39
37
35
33
31
29
27
25
23
21
©Vecow MTC-6000 User Manual
Interface
Auto Detection
Mini PCIe
Function
Reserved
Reserved
Reserved
Reserved
Status
+V3P3aux
+V3P3aux
GND
GND
PETp0
PETn0
GND
GND
PERp0
PERn0
GND
Header
1-3
Pin No.
Function
52
+V3P3aux
50
48
46
Reserved
44
Reserved
42
Reserved
40
38
USB_D+
36
34
32
SMB_DATA
30
SMB_CLK
28
26
24
+V3P3aux
22
PERST#
GETTING TO KNOW YOUR MTC-6000
Interface
mSATA
GND
+1.5V
GND
USB_D-
GND
+1.5V
GND
50
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