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PRODUCT USER GUIDE
1. Introduction
1.1. General Description
AI7931LD is a highly integrated IoT module that features an ARM® Cortex-M33 application processor, a
low power 1x1 802.11a/b/g/n/ac/ax dual-band Wi-Fi subsystem, a Bluetooth v5.0 subsystem and a
Power Management Unit (PMU). The Wi-Fi subsystem and a Bluetooth v5.0 subsystem offer
feature-rich wireless connectivity at high standards, and deliver reliable, cost-effective throughput
from an extended distance. The AI7931LD is designed to support standard based features in the
areas of security, quality of service and international regulations, giving end users the greatest
performance any time and in any circumstance.
The AI7931LD is based on ARM® Cortex-M33 with floating point microcontroller (MCU) including
SRAM/ROM memory. The module also supports rich peripheral interfaces, including SDIO, SPI master, I2C,
I2S_IN, IR input, UART, AUXADC, PWM, and GPIOs.
These features are used to download and debug a project on EK-AI7931LD.
The front view of the EK-AI7931LD including AI7931LD module is shown in Figure 1.
www.acsip.com.tw
Figure 1. Front view of EK-AI7931LD
Product Name
EK-AI7931LD
Version
E
Doc No
912-13802
Date
2022/11/14
Page
4 / 26
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