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Pin No.
1
3
5
7
9
2.3.12 MPCIE1, MPCIE2 : Mini PCIe, mSATA
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 an 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.
The pin assignments of MPCIE1, MPCIE2 are listed in the following table :
Pin No.
51
49
47
45
43
©Vecow RCX-1500 PEG User Manual
Definition
+V5_USB8_PWR
+V5_USB8_PWR
USB_D_13P
USB_D_14P
GND
MPCIE2
mSATA
Definition
Reserved
Reserved
Reserved
Reserved
Status
Pin No.
2
+V5_USB8_PWR
4
USB_D_13N
6
USB_D_14N
8
10
MPCIE1
mSATA
Pin No.
52
50
48
46
Reserved
44
Reserved
GETTING TO KNOW YOUR RCX-1500 PEG
Definition
GND
GND
Definition
+3.3Vaux
GND
+1.5V
32
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