Lcm Interface - Quectel SC20 Series Hardware Design

Table 21: Pin Definition of Motor Drive Interface
Pin Name Pin No.
VIB_DRV 28
The motor is driven by an exclusive circuit, and the reference circuit design is shown below.
When the motor stops, the redundant electricity can be discharged from the circuit loop formed by diodes,
thus avoiding damage to components.

3.18. LCM Interface

SC20 series provides one LCM interface, which is MIPI_DSI standard compliant. The interface supports
high-speed differential data transmission with one 4-lane MIPI_DSI and a transmission rate of up to
1.5 Gbps/lane. It supports up to 720P resolution display.
Table 22: Pin Definition of LCM Interface
Pin Name
LDO6_1V8
LDO17_2V85
PWM
SC20_Series_Hardware_Design
I/O Description
PO Motor drive
Figure 20: Reference Circuit for Motor Connection
Pin No. I/O Description
1.8 V output power supply for
125 PO
LCM I/O ports
2.85 V output power supply for
129 PO
LCM VCC
29 DO PWM output
Comment
Connect it to the negative pole of the motor.
Smart Module Series
Comment
Vnom = 1.8 V
I max = 100 mA
O
Vnom = 2.85 V
I max = 300 mA
O
Adjust the backlight
brightness.
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