Chapter 3

Hardware

Universal Serial Bus (USB)

The XTX 820 COM supports up to six USB ports on the baseboard and the supported features are listed below.

USB v2.0 backward compatible to legacy v.1.1

Two root hubs and 4 ports on J1

Two ports and 1 root hub on J2

Supports USB boot of floppy disk drives, hard disk drives, CD-ROMs, or other USB boot devices

Integrated physical layer transceivers

Over-current detection status on USB ports 1 and 2

Table 3-5. Simplified USB Interface Pin/Signal Descriptions (J1)

J1

Signal

Description

Pin #

 

 

 

USBP

USB Power –

76

USB0-

Universal Serial Bus Port 0 Data Negative Polarity

 

 

 

88

USB0+

Universal Serial Bus Port 0 Data Positive Polarity

 

 

 

80

USB1-

Universal Serial Bus Port 1 Data Negative Polarity

92

USB1+

Universal Serial Bus Port 1 Data Positive Polarity

 

 

 

58

USB2-

Universal Serial Bus Port 2 Data Negative Polarity

 

 

 

66

USB2+

Universal Serial Bus Port 2 Data Positive Polarity

62

USB3-

Universal Serial Bus Port 3 Data Negative Polarity

 

 

 

72

USB3+

Universal Serial Bus Port 3 Data Positive Polarity

 

 

 

 

GND

USB Port ground

Note: The shaded area denotes power or ground.

Serial Interrupt Request

This SERIRQ signal is connected to serial request input on the I/O Hub (Southbridge) chip (82801FBM) for the alternative LPC/PCI interrupts. If this feature is supported, then DMA2 (DAck2 and DRQ2) shall not be supported by XTX 820 module.

Table 3-6. Simplified Serial Interrupt Request (J1)

J1 Pin #

Signal

Description

21

SERIRQ

Serial Interrupt Request – This pin is used to support the serial interrupt protocol.

 

 

 

AC’97 Sound

The XTX 820 module supports the AC’97 audio standard and the supported features are listed below.

Provides Realtek ALC 655, AC'97/HDA (High Definition Audio CODECs)

AC’97 Rev 2.2 compliant

Supports audio amplifier on baseboard

PC-Beep passthrough to Line Out while reset is held active low

True Line Level Output with volume control independent of Line Out

Digital 3V and 5V compliant

24

Reference Manual

XTX 820

Page 30
Image 30
Ampro Corporation XTX 820 manual Universal Serial Bus USB, Serial Interrupt Request, AC’97 Sound, Signal Description Pin #

XTX 820 specifications

Ampro Corporation has made a significant mark in the world of embedded systems with its versatile XTX 820 embedded computing module. The XTX 820 is designed to cater to a wide array of applications, ranging from industrial automation to medical devices, providing developers with a powerful yet compact solution.

One of the standout features of the XTX 820 is its advanced processing capabilities. The module is equipped with an Intel Atom processor, which delivers impressive performance while operating at low power levels. This combination makes the XTX 820 suitable for environments where energy efficiency is essential. The Atom processor allows for seamless multitasking and support for demanding applications without compromising on thermal efficiency.

In terms of memory, the XTX 820 supports a range of configurations, accommodating both DDR2 and DDR3 memory types. With a maximum of up to 4GB of onboard memory, this module ensures that applications can run smoothly and efficiently across various tasks. The flexibility in memory options enables developers to tailor their designs according to specific project needs.

Connectivity is another strong suit of the XTX 820. The module comes with multiple I/O interfaces that enhance its utility in various applications. It features USB, Serial, and Parallel ports, along with support for LVDS display and audio interfaces. This diverse range of connectivity options allows the XTX 820 to integrate easily with a variety of systems and devices, facilitating seamless data transfer and communication.

Security is increasingly critical in embedded systems, and Ampro has integrated robust security features into the XTX 820. This includes support for hardware-based security solutions, which can protect sensitive data and prevent unauthorized access. Such characteristics make the module a suitable choice for industries where data integrity is paramount.

Furthermore, the XTX 820 boasts an impressive range of environmental operating conditions. It is designed to function in extreme temperatures, making it suitable for outdoor and industrial applications where fluctuations in temperature can be a concern.

In conclusion, the Ampro Corporation XTX 820 embedded computing module emerges as a versatile platform that combines performance, memory flexibility, robust connectivity, and enhanced security features. Its design is tailored to meet the demands of various industries, making it a reliable choice for developers looking for advanced embedded solutions.