I2C Interfaces - Quectel SC20 Series Hardware Design

master mode.
Table 18: Pin Definition of SPI Interface
Pin Name
GPIO_8
GPIO_0
GPIO_9
GPIO_1
GPIO_10
GPIO_2
GPIO_11
GPIO_3

3.15. I2C Interfaces

SC20 series provides three I2C interfaces which only support the master mode. As an open drain output,
each I2C interface needs to be pulled up externally, and the recommended logic level is 1.8 V.
Table 19: Pin Definition of I2C Interfaces
Pin Name
TP_I2C_SCL
TP_I2C_SDA
CAM_I2C_SCL
CAM_I2C_SDA
8
As for SC20-CE R1.1/-CEL R1.1, SC20-E/-EL, SC20-A/-AL, SC20-AU/-AUL, SC20-J/-JL, SC20-EU, pins 105, 116, 117,
118 and 119 are GPIO_0, GPIO_11, GPIO_10, GPIO_9 and GPIO_8 respectively; as for SC20-AX, SC20-EX, pins 105,
116, 117, 118 and 119 are GPIO_15, GPIO_3, GPIO_2, GPIO_1 and GPIO_0 respectively.
SC20_Series_Hardware_Design
Pin No. I/O
8
119 IO
8
118 IO
8
117 DO
8
116 DO
Pin No. I/O Description
47 OD I2C clock signal of touch panel
48 OD I2C data signal of touch panel
83 OD I2C clock signal of camera
84 OD I2C data signal of camera
Description
SPI master-out slave-in
SPI master-in slave-out
SPI chip select
SPI clock
Smart Module Series
Comment
Can be multiplexed into
SPI_MOSI.
Can be multiplexed into
SPI_MISO.
Can be multiplexed into
SPI_CS_N.
Can be multiplexed into
SPI_CLK.
Comment
Used for touch panel
Used for camera
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