Chapter 3

 

Hardware

 

 

 

 

 

Pin #

Signal

Description

 

80

PD0

Parallel Port Data 0 – This pin (0 to 7) provides a parallel port data signal

 

 

INDEX*

and is the printer data LSB.

 

 

Floppy Index –Detects when the head is positioned over the beginning of the

 

 

 

 

 

 

track.

 

 

 

 

 

81, 82

VCC

DC Power – +5V +/- 5%

 

83

RXD1

Receive Data 1 – Serial port 1 receive data in.

 

 

 

 

 

84

ACK*

Parallel Acknowledge * – This is a status input signal from the printer. A

 

 

 

Low State indicates it has received the data and is ready to accept new data.

 

 

DRV*

Floppy Drive Select 1 – This signal selects drive 1.

 

 

 

 

 

85

RTS1*

Request To Send 1 – Indicates Serial port 1 is ready to transmit data. Used

 

 

 

as hardware handshake with CTS1 for low level flow control.

 

86

BUSY

Parallel Busy – This is a status input signal from the printer. A high state

 

 

 

indicates the printer is not ready to accept data.

 

 

MOT*

Floppy Motor Control 1 – This signal selects motor on drive 1.

 

 

 

 

 

87

DTR1*

Data Terminal Ready 1 – Indicates Serial port 1 is powered, initialized, and

 

 

 

ready. Used as hardware handshake with DSR1 for overall readiness.

 

88

PE

Parallel Paper End – This is a status input signal from the printer. A high

 

 

 

state indicates it is out of paper.

 

 

WDATA*

Floppy Write Data – Encoded data to the drive for write operations.

 

 

 

 

 

89

DCD1*

Data Carrier Detect 1 – Indicates external serial device is detecting a carrier

 

 

 

signal (i.e., a communication channel is currently open). In direct connect

 

 

 

environments, this input is driven by DTR1 as part of the DTR1/DSR1

 

 

 

handshake.

 

90

SLCT*

Parallel Select – This is a status output signal from the printer. A high state

 

 

 

indicates it is selected and powered on.

 

 

WGATE*

Floppy Write Gate – Signals drive to enable current flow in the write head.

 

 

 

 

 

91

DSR1*

Data Set Ready 1 – Indicates external serial device is powered, initialized,

 

 

 

and ready. Used as hardware handshake with DTR1 for overall readiness.

 

92

MSCLK

Mouse Clock – This signal clocks the data from the mouse.

 

 

 

 

 

93

CTS1*

Clear To Send 1 – Indicates external serial device is ready to receive data.

 

 

 

Used as hardware handshake with RTS1 for low level flow control.

 

94

MSDAT

Mouse Data – This signal provides the mouse data.

 

 

 

 

 

95

TXD1

Transmit Data 1 – Serial port 1 transmit data out

 

 

 

 

 

96

KBCLK

Keyboard Clock – This signal clocks the data from the keyboard.

 

97

RI1*

Ring Indicator 1 – Indicates external serial device is detecting a ring

 

 

 

condition. Used by software to initiate operations to answer and open the

 

 

 

communications channel.

 

98

KBDAT

Keyboard Data – This signal provides the keyboard data

 

 

 

 

 

99

GND

Ground

 

100

GND

Ground

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

XTX 820

Reference Manual

45

Page 50 Page 52
Page 51
Image 51
Ampro Corporation XTX 820 manual Drv, Mot
Page 50 Page 52

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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