MaaXBoard HW UserManual V1.2
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2.3 Introduction of Peripheral Chips
2.3.1 AR8035
AR8035 Integrated 10/100/1000 Mbps Ethernet Transceiver. The AR8035 is a single port 10/100/1000
Mbps Tri-speed Ethernet PHY, which provides a low power, low BOM (Bill of Materials) cost solution for
comprehensive applications including consumer, enterprise, carrier and home networks, etc.
AR8035 supports IEEE 802.3az Energy Efficient Ethernet (EEE) standard and Atheros proprietary
SmartEEE, which allows legacy MAC/SoC devices without 802.3az support to function as the complete
802.3az system.
2.3.2 BD71837
BD71837MWV integrated all the power voltage for iMX8M, include the peripheral power voltage, which
significantly reduce the difficulty when customer develop the system, shorten the development cycle and
the manufacture period of the product.
BD71837MWV is Power Management IC specially designed for iMX8M by ROHM Semiconductor. It
integrates 8 Buck regulators and 7 LDOs, support the processor to dynamically adjust the power to
achieve the goal of energy saving. The chip provides 1.8V/3.3V optional MMC card power supply at the
same time. Users could choose 1.8V or 3.3V output by change the resistor, to fit multimedia card with
various type and protocol. It provides a 32.768 kHz Crystal Oscillator Driver which could power to the
clock circuit directly. It also provides several protection modes: output short circuit, output over
voltage/current, over thermal protection, etc.
2.3.3 AW-CM256SM
The AW-CM256SM wireless module is compliant with the IEEE 802.11a/b/g/n/ac standard, support
connection up to 433.3Mbps transmit/receive (connect to WLAN using 802.11 ac protocol).
AW-CM256SM module provide SDIO interface Wi-Fi, UART/PCM interface Bluetooth Function. It enables
a low power consumption and high performance solution that fit for IOT and other application field.
