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Table 7: Clock sources overview

The configuration of the I/O's MIO12 - MIO15 and MIO40 - MIO51 are depending on the base-board peripherals connected to this pins.

MIO	Function	Connected to	Notes	MIO	Function	Connected to	Notes
0	GPIO	J2-137, SC CPLD bank 2, pin 14	user User configurable I/O on B2B.	16..27	ETH0	Ethernet PHY U7	RGMII
1	QSPI0	QSPI Flash Memory U14, pin C2	SPI Flash-CS	28..39	USB0	USB PHY U32	ULPI
2	QSPI0	QSPI Flash Memory U14, pin D3	SPI Flash-DQ0	40	GPIO-	J2-150	User configurable I/O on B2B.
3	QSPI0	QSPI Flash Memory U14, pin D2	SPI Flash-DQ1	41	GPIO-	J2-152	User configurable I/O on B2B.
4	QSPI0	QSPI Flash Memory U14, pin C4	SPI Flash-DQ2	42	GPIO-	J2-154	User configurable I/O on B2B.
5	QSPI0	QSPI Flash Memory U14, pin D4	SPI Flash-DQ3	43	GPIO-	J2-156	User configurable I/O on B2B.
6	QSPI0	QSPI Flash Memory U14, pin B2	SPI Flash-SCK	44	GPIO-	J2-158	User configurable I/O on B2B.
7	GPIO	USB PHY U32, pin 27	Low active USB PHY Reset (pulled-up to PS_1.8V)	45	GPIO-	J2-160	User configurable I/O on B2B.
8	GPIO	SC CPLD bank 2, pin 13	User I/O (pulled-up to PS_1.8V)	46	GPIO-	J2-145	User configurable I/O on B2B.
9	GPIO	Ethernet PHY U7, pin 16	Ethernet PHY Reset	47	GPIO-	J2-147	User configurable I/O on B2B.
10	I²C	SCL line I²C-interface	1.8V ref. voltage	48	GPIO-	J2-149	User configurable I/O on B2B.
11	I²C	SDA line I²C-interface	1.8V ref. voltage	49	GPIO-	J2-151	User configurable I/O on B2B.
12	GPIO-	J2-123	User configurable I/O on B2B.	50	GPIO-	J2-153	User configurable I/O on B2B.
13	GPIO-	J2-125	User configurable I/O on B2B.	51	GPIO-	J2-155	User configurable I/O on B2B.
14	GPIO-	J2-127	User configurable I/O on B2B.	52	ETH0	USB PHY U32, pin 7	MDC
15	GPIO-	J2-129	User configurable I/O on B2B.	53	ETH0	USB PHY U32, pin 8	MDIO

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