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Bank	Type	VCCIO	I/O Signal Count	Available on Connectors	Notes
34	HR	3.3V	41	38	38 user I/O's, 3 I/O's used for controlling the RGB LED D4.
35	HR	3.3V	8	8	8 single ended or 4 differential.
500	PS MIO	3.3V	7	0-	6 MIO - pins used for QSPI flash memory interface, 1 MIO - pin connected to green LED D2.
501	PS MIO	3.3V	10	0-	7 MIO - pins used for SD Card interface, 3 MIO - pins connected to light sensor U4.
0	Config	3.3V	5	0-	4 I/O's are dedicated to JTAG interface, 'DONE'-signal is indicated by red LED D6.

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MIO-pin	Function	Connector to
MIO1	QSPI	QSPI flash memory, pin 1
MIO2	QSPI	QSPI flash memory, pin 5
MIO3	QSPI	QSPI flash memory, pin 2
MIO4	QSPI	QSPI flash memory, pin 7
MIO5	QSPI	QSPI flash memory, pin 3
MIO6	QSPI	QSPI flash memory, pin 6
MIO7	GPIO	Green LED D2
MIO28	SDIO	SC SD Card socket. pin J8-5
MIO29	SDIO	SC SD Card socket. pin J8-3
MIO30	SDIO	SC SD Card socket. pin J8-7
MIO31	SDIO	SC SD Card socket. pin J8-8
MIO32	SDIO	SC SD Card socket. pin J8-1
MIO33	SDIO	SC SD Card socket. pin J8-2
MIO36	I²C	Ambient / Proximity Light Sensor U4, pin 2
MIO37	I²C	Ambient / Proximity Light Sensor U4, pin 1
MIO39	GPIO	Ambient / Proximity Light Sensor U4, Interrupt pin 4
MIO49	GPIO	SC SD Card socket card detect pin J8-G4

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