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3. Hardware Description
LinkIt 2523 HDK provides connections between the system on chip (SOC) and the peripherals, such as micro SD card,
eMMC, MIPI LCM, serial LCM, touch panel, serial camera, sensor daughterboard, GNSS, Bluetooth, audio speech and
high speed USB 2.0.
The top and bottom layout views (Figure 5 and Figure 6, respectively) show the positions of the peripherals on the HDK.
Some of the peripherals are mutually exclusive. The eMMC and the micro SD, for example, cannot be used at the same
time, as the corresponding pins can only be assigned to one function at a time.
The LinkIt 2523 HDK provides the following features for application development.
•
ARM Cortex‐M4 core‐based LinkIt 2523G microcontroller.
o
Internal 160kB SRAM and 4MB PSRAM.
o
Internal 4MB serial flash.
•
Rich interfaces.
o
Two I2Cs.
o
Four master SPIs and a slave SPI.
o
One master I2S and one slave I2S.
o
One PCM interface supports master.
o
Four UARTs.
o
Five 12‐bit ADCs.
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Five PWMs by alternative voltage level.
o
Two SDMMCs.
o
JTAG debugging support.
o
Five sets of clock outputs.
•
Peripherals.
o
One serial camera interface supporting up to 3‐bit mode image capture.
o
Two display modes by serial interface and MIPI which resolution is up to 320*320.
o
Keypad supported to simulate buttons like volume up/down, backward, enter.
o
Onboard speaker, onboard analog microphone and audio jack appliance.
•
User‐friendly customization.
o
Supports Bluetooth (2.4GHz) and GNSS onboard antenna connectivity and also an SMA connector for
dedicated antenna connectivity.
o
Supports 2‐wire SWD interface for debugging purposes.
o
Headers for convenient and accurate current measurement.
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.
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LinkIt 2523 HDK User's Manual
© 2015 - 2016 MediaTek Inc.
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