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User’s Manual for Advantech SOM-A2558 series module V1.00

98

SMBUS_DAT

IO

System Management Bus data pin.

Pull high with

 

 

 

The pin is implemented by SoC

4.7Kohm

 

 

 

PXA255 I2C bus.

 

99

SYS_VCC3P3

P

SOM system DC power 3.3V input

-

 

 

 

pin. SYS_VCC should always be

 

 

 

 

powered by DC 3.3V even in sleep

 

 

 

 

mode.

 

100

USB_CP

IO

USB Client Positive pin

No pulling

101

SYS_VCC3P3

P

SOM system DC power 3.3V input

Powered

 

 

 

pin. SYS_VCC should always be

 

 

 

 

powered by DC 3.3V even in sleep

 

 

 

 

mode.

 

102

USB_CN

IO

USB Client Negative pin.

No pulling

103

SYS_VCC3P3

P

SOM system DC power 3.3V input

-

 

 

 

pin. SYS_VCC should always be

 

 

 

 

powered by DC 3.3V even in sleep

 

 

 

 

mode.

 

104

BUZZER_OUT

O

Buzzer-out control signals. User

No pulling

 

 

 

can use the pin to control buzzer

 

 

 

 

power pin.

 

105

USB_LINK_5V

I

USB client link status indicator pin.

Pull low with

 

 

 

When the pin is high, it means

100Kohm

 

 

 

USB client port has been

 

 

 

 

plugged-in USB device.

 

106

UART2_RTS

O

UART2 Request-to-Send signal

Pull high with

 

 

 

pin. If user doesn’t need UART2

100Kohm

 

 

 

function, user could use this pin as

 

 

 

 

GPIO. The pin connects to SoC

 

 

 

 

PXA255 GPIO45.

 

107

GND

P

Ground

-

108

UART2_DCD

I

UART2 data-Carrier-Detect signal

Pull high with

 

 

 

pin.

100Kohm

109

UART3_DCD

I

UART3 data-Carrier-Detect signal

Pull high with

 

 

 

pin.

100Kohm

110

UART2_DSR

I

UART2 Data-Set-Ready signal pin.

Pull high with

 

 

 

 

100Kohm

111

UART3_DSR

I

UART3 Data-Set-Ready signal pin.

Pull high with

 

 

 

 

100Kohm

112

UART2_TXD

O

UART2 Transmit signal pin. If user

Pull high with

 

 

 

doesn’t need UART2 function, user

100Kohm

 

 

 

could use this pin as GPIO. The

 

 

 

 

pin connects to SoC PXA255

 

 

 

 

GPIO43.

 

113

UART3_RXD

I

UART3 Receive signal pin. If user

Pull high with

 

 

 

doesn’t need UART3 function, user

100Kohm

 

 

 

could use this pin as GPIO. The

 

 

 

 

pin connects to SoC PXA255

 

 

 

 

GPIO46.

 

114

UART2_RXD

I

UART2 Receive signal pin. If user

Pull high with

22

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Advantech SOM-A2558 Smbusdat, Usbcp, Buzzerout, USBLINK5V, UART2RTS, UART2DCD, UART3DCD, UART2DSR, UART3DSR, UART2TXD

SOM-A2558 specifications

The Advantech SOM-A2558 represents a significant advancement in system-on-module (SOM) technology, designed to meet the needs of demanding applications in industries such as industrial automation, transportation, and smart cities. Featuring the Intel Apollo Lake processor, specifically the dual-core or quad-core options, the SOM-A2558 delivers an optimal blend of performance and efficiency.

At the core of the SOM-A2558 is the Intel Atom E3950 or E3940 processors, which enable robust processing capabilities while maintaining low power consumption. This is crucial for embedded systems that require continuous operation in energy-sensitive environments. The module supports up to 8GB of DDR4 memory, enhancing its multitasking abilities and enabling it to handle complex applications with ease.

One of the standout features of the SOM-A2558 is its extensive array of I/O options, including USB 3.0, UART, I2C, SPI, and GPIO. This versatility allows for seamless integration with various peripherals and sensors, making it ideal for IoT applications and industrial automation systems. The SOM also supports dual Gigabit Ethernet ports, providing high-speed network connectivity essential for real-time data transfer and communications.

In terms of graphics, the SOM-A2558 supports Intel HD Graphics, which enhances the visual performance for display applications. With integrated hardware-accelerated video decoding and support for 4K resolution, it is suitable for applications such as digital signage and multimedia processing.

Advantech has designed the SOM-A2558 for durability and reliability, featuring a wide operating temperature range from -40°C to 85°C, making it suitable for harsh environments. Additionally, the module's compact form factor ensures easy integration into various system designs, allowing developers to create tailored solutions without significant space constraints.

The SOM-A2558 also supports multiple storage options, including eMMC, SATA III, and M.2 interfaces, which provide flexibility for different storage needs and configurations. Its support for TPM 2.0 enhances security, a vital aspect for applications handling sensitive data.

In summary, the Advantech SOM-A2558 combines cutting-edge technology, extensive connectivity options, and robust performance to facilitate the development of innovative solutions across various sectors. Its features make it an excellent choice for developers looking to create reliable and efficient embedded systems.