Smart Module Series
SC200E_Series_Hardware_Design 56 / 115
It is recommended to read the LCM ID register through MIPI when compatible design with other displays
is required. If several LCMs share the same IC, it is recommended that the LCM factory should burn an
OTP register to distinguish different screens. You can also connect the LCD_ID pin of LCM to the ADC
pin of the module, but you need to make sure that the output voltage of LCD_ID should not exceed the
voltage range of the ADC pin.
You can design the external backlight driving circuit for LCM according to actual requirements. A
reference circuit design is shown in the following figure, in which the PWM pin is used to adjust the
backlight brightness.
PWM
Module
2.2
μF
Backlight
driver
LCM_LED-
VPH_PWR
C1
R1
10K
Figure 20: Reference Design for LCM External Backlight Driving Circuit
3.18. Flash Interface
The module supports one flash LED driver, with maximum output current up to 1 A.
Table 21: Pin Definition of Flash Interface
Flash current is programmable in step 12.5 mA (max. 1 A) or 5 mA (max. 640 mA).
Pin Name
Pin No.
I/O
Description
Comment
FLASH_LED
180
AO
Flash/torch driver output
Supports flash and torch
modes.
NOTE