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4.6.1. MT2523 digital die eFuse
The MT2523 digital die eFuse function can be enabled to protect the binary image stored on the HDK, as shown in Table
10.
Connect the jumper J1102 (see Figure 8) to GND to disable the eFuse setting on
the HDK, as shown below.
Connect the jumper J1102 to power rail VIO28 to enable the eFuse setting on the HDK, as shown below.
4.6.2. LinkIt 2523 board's real time clock source
MT2523 real time clock (RTC) source can be provided either using the internal or external clock. Connect the jumper
J1103 to pin 1 and pin 2 to provide 32.786kHz internal clock signal for power saving operations. Connect jumper J1103 to
pin 2 and pin 3 to select the clock source generated by external XTAL oscillator. Jumper J1104 should be synchronized
with the jumper J1103. Switch J1104 to connect pin 1 and pin 2 for power saving; if 32.768kHz XTAL is mounted. Connect
jumper J1104 to pin 2 and pin 3 for XTAL cost reduction. Table 11 provides details on how configure the RTC jumper
settings for the HDK. The pin, jumper and resistor locations can be found in Figure 10.
Connect jumpers J1103 and J1104 pins to enable 32.768kHz XTAL, as shown below.
4.6.3. Pins reserved for user applications
Users are able to use camera daughterboard pin headers and sensor daughterboard pin headers for their applications.
In addition LinkIt 2523 HDK provides two sets of two‐pin headers, the jumpers J1013 and J1014 for I2C, UART, EINT
and GPIO. Please look up pin assignment tables to realize multi‐mode selections, see sections 4.16.1, "UART
connector" and 4.16.2, "I2C connector".
4.7. LCM
This document contains information that is proprietary to MediaTek Inc. ("MediaTek") and/or its licensor(s).
Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
LinkIt 2523 HDK User's Manual
Table 10. LinkIt 2523 board's eFuse jumper pin settings (illustrated)
© 2015 - 2016 MediaTek Inc.
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