Chapter 3

Hardware

Pin #

Signal

Description

31

GND

Ground

32

SDVO_FLDSTALL*

Serial Digital Video field stall complement.

 

 

 

33

SDVO_FLDSTALL

Serial Digital Video field stall.

34

GND

Ground

35

SDVO_TVCLKIN*

Serial Digital Video TV-Out synchronization clock complement.

 

 

 

36

SDVO_TVCLKIN

Serial Digital Video TV-Out synchronization clock.

37

GND

Ground

38

SDVOCTRL_CLK

I²C based control signal (Clock) for SDVO device. PU 2k2 3.3V

 

 

 

39

SDVOCTRL_DATA

I²C based control signal (Data) for SDVO device. PU 2k2 3.3V

40

PWRGD

Power Good tied to Pull Up 10k resistor at 3.3V

 

 

 

41

+5V

Power supply +5V

42

+5V

Power supply +5V

43

+5V

Power supply +5V

44

SDAOUFP1

Custom

 

 

 

45

SDAOUFP2

Custom

Notes: The shaded area denotes power or ground. The signals marked with * = Negative true logic.

Serial Console (Remote Access)

The XTX 820 supports the serial console (or console redirection) feature as Remote Access in the BIOS Setup Utility. This I/O function can be accessed by an ANSI-compatible serial terminal, or the equivalent terminal emulation software running on another system. This can be very useful when setting up the BIOS on a production line for systems that are not connected to a keyboard and display.

Serial Console Setup

The serial console feature is implemented by connecting a standard null modem cable between one of the serial ports, such as Serial 1 (COM1) or Serial 2 (COM2), and the serial terminal or a PC with communications software. The BIOS Setup Utility controls the serial console settings for the XTX 820. Refer to Chapter 4, BIOS Setup Utility for the Remote Access (serial console) settings, and the settings for the serial terminal, or PC with communications software. A brief connection procedure is also provided in Chapter 4, under Accessing BIOS Setup Utility (Remote Access).

Temperature Monitoring

Pentium/Celeron M processors make use of the thermal monitor feature to help control the processor temperature. The maximum junction operating temperature for Pentium/Celeron M processors is 100°C. The integrated TCC (Thermal Control Circuit) activates if the processor die reaches its maximum operating temperature. The activation temperature used by the Intel Thermal Monitor activates the TCC, but cannot be configured by the user nor is it software visible.

The Thermal Monitor can control the processor temperature through the use of two different methods defined as TM1 and TM2. The TM1 method modulates (starts and stops) the processor clock at a 50% duty cycle. The TM2 method initiates an Enhanced Intel Speedstep transition to the lowest performance state once the processor silicon reaches the maximum operating temperature and is only supported by Intel Pentium M processors. The TM2 mode should only be used for Intel Pentium M processors and is not supported by Intel Celeron M processors.

The Thermal Monitor supports two modes (Automatic and On-Demand) to activate the TCC. The Intel Thermal Monitor Automatic Mode must be enabled through a setup node in the BIOS. No additional hardware, software, or handling routines are necessary when using Automatic Mode.

56

Reference Manual

XTX 820

Page 62
Image 62
Ampro Corporation XTX 820 manual Serial Console Remote Access, Temperature Monitoring

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.