Quartz64 - GPIO Modell A

[FrankM]

Attention! GPIO's are 3.3V

Assigned to	Pin Nr.	Pin Nr.	Assigned to
3,3V	1	2	5V
I2C3_SDA_M0	3	4	5V
I2C3_SCL_M0	5	6	GND
CPU_REFCLK_OUT	7	8	UART2_TX_M0_DEBUG
GND	9	10	UART2_RX_M0_DEBUG
SPI1_MOSI_M1	11	12	UART0_TX
SPI1_MISO_M1	13	14	UART0_RX
SPI1_CLK_M1	15	16	GND
SPI1_CS0_M1	17	18	SPDIF_OUT
GND	19	20	3,3V

Source: Page28 https://wiki.pine64.org/images/3/31/Quartz64_model-A_schematic_v1.0_20201215.pdf