LinkIt 2523 HDK v11 User's Guide
© 2015 - 2016 MediaTek Inc.
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interface is a 240*240 pixel graphical RGB 1.6 inch thin film transistor LCD. The connector CON6102 on the HDK is
reserved for the serial display LCM.
The HDK supports only one display LCM at a time. The capacitive touch screen is enabled on both displays.
The onboard MIPI LCM or CON6102 supports touch panel connected to the I2C interface. The pin definition of the
connectors can be found in Table 13, with the path selection resistor locations shown in Figure 14. Resistors J6101
to J6106 are designed for onboard LCM and serial pin header switching. Table 13 presents jumper settings for
different use case scenarios.
For MIPI LCM display, users should connect the connectors CON501 and CON502 (located behind CON501 on the
back of the board) for touch and display functions; for serial display, the set of CON401 and CON402 should be
used.
Jumpers J401 and J402 enable the current sink, and jumpers J201, J202, J203 are reserved for external current sink
IC to power up the serial display backlight. Only one type of backlight source is needed at a time. All descriptions of
backlight source jumpers and path selections are shown in Table 12.
Figure 15. LCM display module and backlight jumper locations
Table 12. LCM backlight source selection settings (illustrated)
LCM backlight boost
source
Set the jumpers J201, J202 and J203 to activate the external current sink IC for
backlight. Remove the jumpers J401 and J402.
Remove the jumpers J201, J202 and J203 to deactivate current IC and set
jumpers J401 and J402 for backlight source through the current sink path.
CON501
J201
Up: J203
Down: J202
CON402
Left: J402
Right: J401
CON401
