Advantech SOM-A2552 manual B50, Mbgnt, A50 3M6864, Model Default state

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User’s Manual for Advantech SOM-A2552 series module V1.00

			Memory Controller grant. Notifies an
			external device that it has been
			granted the system bus. If user
			wants to design a controller in CSB
B50	MBGNT	O	with this pin function, please check	Pull low
			with ae.risc@advantech.com.tw first.	with 1Kohm
			If use doesn’t want to use this pin as
			MBGNT, use could use the pin as
			GPIO. The pin connects to SoC
			PXA255 GPIO13.
A50	3M6864	O	3.6864 MHz clock. Output from	No pulling
			3.6864 MHz oscillator.

¦100-pin B2B connector Pin Out Table (X3 connector for PCI, ZV port, MMC interface and Misc. function)

Pin	Signals	Typ	Model	Default state
No.		e
B1	N.C.	-	N.C. just float this pin.	-
A1	N.C.	-	N.C. just float this pin.	-
B2	N.C.	-	N.C. just float this pin.	-
A2	N.C.	-	N.C. just float this pin.	-
B3	N.C.	-	N.C. just float this pin.	-
A3	N.C.	-	N.C. just float this pin.	-
B4	N.C.	-	N.C. just float this pin.	-
A4	N.C.	-	N.C. just float this pin.	-
B5	N.C.	-	N.C. just float this pin.	-
A5	N.C.	-	N.C. just float this pin.	-
B6	N.C.	-	N.C. just float this pin.	-
A6	N.C.	-	N.C. just float this pin.	-
B7	N.C.	-	N.C. just float this pin.	-
A7	N.C.	-	N.C. just float this pin.	-
B8	N.C.	-	N.C. just float this pin.	-
A8	N.C.	-	N.C. just float this pin.	-
B9	N.C.	-	N.C. just float this pin.	-
A9	N.C.	-	N.C. just float this pin.	-
B10	GND	P	Ground	-
A10	N.C.	-	N.C. just float this pin.	-
B11	N.C.	-	N.C. just float this pin.	-
A11	N.C.	-	N.C. just float this pin.	-
B12	N.C.	-	N.C. just float this pin.	-
A12	N.C.	-	N.C. just float this pin.	-
B13	N.C.	-	N.C. just float this pin.	-
A13	N.C.	-	N.C. just float this pin.	-
B14	N.C.	-	N.C. just float this pin.	-
A14	GND	P	Ground	-
B15	N.C.	-	N.C. just float this pin.	-

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