Chapter 3

 

 

 

 

Hardware

Table 3-27. SMBus Reserved Addresses

 

 

 

 

 

 

 

 

 

 

Matrix Component

 

 

Address Binary

 

 

Memory & Graphics Hub (82915GM)

 

1010,010xb

 

 

DDR2 RAM EPROM

 

 

1010,000xb

 

 

Clock Generator (UICS954201)

 

1101,001xb

 

 

I/O Hub (82801FBM)

 

 

0000,000xb (default) Programmable

 

Table 3-28. Complete J4 Interface Pin/Signal Descriptions (J4)

 

 

 

 

 

 

 

Pin #

Signal

Description

 

 

 

1

GND1

Ground

 

 

 

2

GND3

Ground

 

 

 

3

5V_SB

5 volt Suspend – This control signal is sent to the ATX power supply for a

 

 

 

suspended or standby state.

 

4

PWGIN

Power Good In – This active high input signal indicates to the XTX 820,

 

 

 

the power is good and it can begin the boot process.

 

5

PS_ON

Power Supply On – This active-low output signal from the XTX 820 is sent

 

 

 

to the ATX power supply from the to turn it on.

 

6

SPEAKER

Speaker – This PC speaker output signal must be connected to a speaker

 

 

 

(piezoelectric or dynamic) on the baseboard to hear the output (beeps).

 

7

PWRBTN*

Power Button – This signal provides a ground temporarily through an open

 

 

 

collector driver to the ATX power supply to change states (turn it on).

 

8

BATT

Battery Voltage – This is the + battery connection to the baseboard for +3

 

 

 

volt lithium backup battery used to power RTC operation and CMOS

 

 

 

non-volatile memory.

 

9

KBINH

Keyboard Inhibit – This pin disables data input from the keyboard when

 

 

 

asserted.

 

 

 

10

LILED

Link Integrity LED – The LINK LED pin indicates link integrity. If the

 

 

 

link is valid in either 10 or 100 Mbps, the LED is on; if the link is invalid,

 

 

 

the LED is off.

 

 

 

11

RSMRST*

Resume Reset – This signal is driven low by external circuitry to reset the

 

 

 

power management logic on the XTX 820.

 

12

ACTLED

Activity LED – The Activity LED pin indicates either transmit or receive

 

 

 

activity. When activity is present, the activity LED is on; when no activity

 

 

 

is present, the activity LED is off.

 

13

NC

Not Connected (ROMKBCS*)

 

 

 

 

 

14

SPDLED

Speed LED – The speed LED pin indicates the speed. The speed LED will

 

 

 

be on at 100 Mbps and off at 10 Mbps.

 

15

EXT_PRG

External Programming – This pin is used when handling external flash

 

 

 

programming.

 

 

 

16

I2CLK

I2C Clock – This clock line supports the I2C bus.

 

17

VCC1

+5 volts +/-5%

 

 

 

18

VCC3

+5 volts +/-5%

 

 

 

19

OVCR*

Over Current Detect – This signal indicates a USB over-current condition.

 

 

 

 

 

20

NC

Not Connected (GPCS*)

 

 

 

 

 

21

EXTSMI*

Extern System Management Interrupt – This signal is provided by external

 

 

 

circuitry to initiate an SMI event with the XTX 820.

XTX 820

Reference Manual

51

Page 57
Image 57
Ampro Corporation XTX 820 manual Matrix Component Address Binary

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.