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

 

2

 

2.

 

77

nSA_SKT1_W

I

PCMCIA/CF slot 1 wait signals.

Pull high with

 

AIT

 

Driven low by the PCMCIA card to

10Kohm

 

 

 

extend the length of the transfers

 

 

 

 

to/from the PXA255 processor.

 

78

nSA_SKT0_CD

I

PCMCIA/CF slot 0 card detect pin

No pulling

 

2

 

2.

 

79

nSA_SKT0_IOI

I

IO Select 16. (input) Acknowledge

Pull high with

 

S16

 

from the PCMCIA card that the

10Kohm

 

 

 

current address is a valid 16 bit

 

 

 

 

wide I/O address.

 

80

SA_SKT0_VCC

P

PCMCIA/CF slot 0 power pin.

Powered

81

nSA_SKT1_IOI

I

PCMCIA/CF slot 0 IO Select 16.

Pull high with

 

S16

 

Acknowledge from the PCMCIA

10Kohm

 

 

 

card that the current address is a

 

 

 

 

valid 16 bit wide I/O address.

 

82

nSA_PWR_ON

I

System suspend/wakeup input pin.

Pull high with

 

 

 

Falling edge triggered.

10Kohm

83

nBATT_FALT

I

Main Battery Fault. Signals that

Pull high with

 

 

 

main battery is low or removed.

100Kohm

 

 

 

Assertion causes PXA255

 

 

 

 

processor to enter sleep mode or

 

 

 

 

force an Imprecise Data Exception,

 

 

 

 

which cannot be masked. PXA255

 

 

 

 

processor will not recognize a

 

 

 

 

wakeup event while this signal is

 

 

 

 

asserted. Minimum assertion time

 

 

 

 

for nBATT_FAULT is 1 ms.

 

84

nSW_RESET

I

System software reset input pin.

Pull high with

 

 

 

Falling edge triggered.

10Kohm

85

nVDD_FALT

I

VDD Fault. Signals that the main

Pull high with

 

 

 

power source is going out of

100Kohm

 

 

 

regulation. nVDD_FAULT causes

 

 

 

 

the PXA255 processor to enter

 

 

 

 

sleep mode or force an Imprecise

 

 

 

 

Data Exception, which cannot be

 

 

 

 

masked. nVDD_FAULT is ignored

 

 

 

 

after a wakeup event until the

 

 

 

 

power supply timer completes

 

 

 

 

(approximately 10 ms). Minimum

 

 

 

 

assertion time for nVDD_FAULT is

 

 

 

 

1 ms.

 

86

nRESET_OUT

O

Reset Out. Asserted when

No pulling

 

 

 

nRESET is asserted and deasserts

 

 

 

 

after nRESET is deasserted but

 

 

 

 

before the first instruction fetch.

 

 

 

 

nRESET_OUT is also asserted for

 

 

 

 

“soft” reset events: sleep,

 

 

 

 

watchdog reset, or GPIO reset.

 

87

GND

P

Ground

-

20

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Advantech SOM-A2558 user manual SASKT0VCC
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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.
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