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

88

PWR_EN

 

Power Enable for the power

Pull high with

 

 

O

supply. (output) When negated, it

100Kohm

 

 

 

signals the power supply to

 

 

 

 

remove power to the core because

 

 

 

 

the system is entering sleep mode.

 

89

BAT_VCC

P

3.0V li-ion coin battery positive

No pulling

 

 

 

pole input pin.

 

90

nRESET

I

System hardware reset input pin.

Pull high with

 

 

 

Falling edge triggered. Hard reset.

10Kohm

 

 

 

(input) Level sensitive input used

 

 

 

 

to start the processor from a known

 

 

 

 

address. Assertion causes the

 

 

 

 

current instruction to terminate

 

 

 

 

abnormally and causes a reset.

 

 

 

 

When nRESET is driven high, the

 

 

 

 

processor starts execution from

 

 

 

 

address 0. nRESET must remain

 

 

 

 

low until the power supply is stable

 

 

 

 

and the internal 3.6864 MHz

 

 

 

 

oscillator has stabilized.

 

91

nDC_IN

I

System DC input indicator pin.

Pull low with

 

 

 

When the pin is low, it means

1Kohm

 

 

 

system is powered by external DC

 

 

 

 

power source. If user target device

 

 

 

 

is not power by battery, use could

 

 

 

 

use this pin as GPIO. The pin

 

 

 

 

connects to SoC PXA255 GPIO16.

 

92

SYS_VCC

P

SOM system DC power 5V input

-

 

 

 

pin. SYS_VCC should always be

 

 

 

 

powered by DC 5V even in sleep

 

 

 

 

mode.

 

 

93

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.

 

 

94

SYS_VCC

P

SOM system DC power 5V input

-

 

 

 

pin. SYS_VCC should always be

 

 

 

 

powered by DC 5V even in sleep

 

 

 

 

mode.

 

 

95

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.

 

 

96

SMBUS_CLK

IO

System

Management Bus clock

Pull high with

 

 

 

pin. The

pin is implemented by

4.7Kohm

 

 

 

SoC PXA255 I2C bus.

 

97

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.

 

 

21

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Advantech SOM-A2558 user manual Pwren, Batvcc, Ndcin, Sysvcc, SYSVCC3P3

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.