Vecow EMBC-1000 User Manual page 25

Connector
JUSB2
2.2.6 CN4 : 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 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.
©Vecow EMBC-1000 User Manual
Pin No. Description
1 USB_VCC
2 USB_VCC
3 USB_VCC
4 USB_D_6N
5 USB_D_6P
CN4
Pin No.
6
7
8
9
10
GETTING TO KNOW YOUR EMBC-1000
Description
USB_D_7N
USB_D_7P
GND
GND
GND
18