Chapter 3

 

Hardware

Table 3-7. Simplified Audio Interface Pin/Signal Descriptions (J1)

 

 

 

 

 

J1 Pin #

Signal

Description

 

38

AUXAL

Auxiliary A input Left – This signal is normally used for an external CD-ROM

 

 

 

analog output or similar live-level audio source. Minimum input impedance is

 

 

 

5k Ohms and nominal input level is 1 volt RMS.

 

40

MIC

Microphone reference signal – This microphone input signal has a minimum

 

 

 

input impedance of 5k Ohms, and the maximum input voltage is 0.15 Vp-p.

 

42

AUXAR

Auxiliary A input Right – This signal is normally used for an external CD-ROM

 

 

 

analog output or similar live-level audio source. Minimum input impedance is

 

 

 

5k Ohms and nominal input level is 1 volt RMS.

 

44

ASVCC

Analog Supply Voltage – This test voltage is used for the sound controller, but

 

 

 

is not available for customer use.

 

46

SNDL

Stereo Line Output Left channel – This output signal has a nominal level of 1

 

 

 

volt RMS into 10k impedance load. This output signal can not drive low-

 

 

 

impedance speakers directly.

 

48

ASGND

Analog Ground – This ground is used for the sound controller and an external

 

 

 

amplifier to achieved the lowest audio noise levels.

 

50

SNDR

Stereo Line Output Right channel – This output signal has a nominal level of 1

 

 

 

volt RMS into 10k impedance load. This output signal can not drive low-

 

 

 

impedance speakers directly

Note: The shaded area denotes power or ground.

Table 3-8. Complete J1 Interface Pin/Signal Descriptions (J1)

Pin #

Signal

Description

1

GND

Ground

 

 

 

2

GND

Ground

3

PCICLK3

PCI clock 3 – This signal line is one of four signal lines. These clock signals

 

 

provide the timing outputs for four external PCI devices and the timing for

 

 

all transactions on the PCI bus.

4

PCICLK4

PCI clock 4 – Refer to pin-3 for more information.

 

 

 

5

GND

Ground

6

GND

Ground

7

PCICLK1

PCI clock 1 – Refer to pin-3 for more information.

 

 

 

8

PCICLK2

PCI clock 2 – Refer to pin-3 for more information.

 

 

 

9

REQ3*

Bus Request 3 – This signal line is one of four signal lines. These signals

 

 

indicate to the arbitrator that the device desires use of the bus.

10

GNT3*

Grant 3 – This signal line is one of four signal lines. These signal lines

 

 

indicate access has been granted to the requesting device (PCI Masters).

11

GNT2*

Grant 3 – Refer to pin 10 for more information.

 

 

 

12

+3.3V

+3.3 volts +/-%5

13

REQ2*

Bus Request 0 – This signal line is one of three signal lines. These signals

 

 

indicate the device desires use of the bus to the arbitrator.

14

GNT1*

Grant 1 – Refer to pin 10 for more information.

 

 

 

15

REQ1*

Bus Request 1 – Refer to pin 9 for more information.

16

+3.3V

+3.3 volts +/-%5

 

 

 

XTX 820

Reference Manual

25

Page 30 Page 32
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Image 31
Ampro Corporation XTX 820 manual Pin # Signal Description
Page 30 Page 32

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.
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