Chapter 3

Hardware

Pin #

Signal

Description

60

ERR*

Parallel Error – This is a status output signal from the printer. A low state

 

 

indicates an error condition on the printer.

 

HDSEL*

Floppy Head Select – Selects the side for Read/Write operations (0 = side 1,

 

 

1 = side 0)

61

IRTX

IR Transmit Data (HPSIR or ASKIR)

62

PD6

Parallel Port Data 6 – This signal (0 to 7) provides a parallel port data signal

 

 

and is the printer data MSB.

63

RXD2

Receive Data 2 – Serial port 2 receive data in.

64

INIT*

Parallel Initialize* – This signal initializes the printer. Output in standard

 

 

mode, I/O in ECP/EPP mode.

 

DIR*

Floppy Direction – Direction of head movement (0 = inward motion,

 

 

1 = outward motion).

65, 66

GND

Ground

67

RTS2*

Request To Send 2 – Indicates Serial port 2 is ready to transmit data. Used

 

 

as hardware handshake with CTS2 for low level flow control.

68

PD5

Parallel Port Data 5 – Refer to pin-58 and 80 for more information.

69

DTR2*

Data Terminal Ready 2 – Indicates Serial port 1 is powered, initialized, and

 

 

ready. Used as hardware handshake with DSR2 for overall readiness.

70

SLCTIN*

Select In – This output signal is used to select the printer. I/O pin in

 

 

ECP/EPP mode.

 

STEP*

Floppy Step – Low pulse for each track-to-track movement of the head.

71

DCD2*

Data Carrier Detect 2 – 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 DTR2 as part of the DTR2/DSR2

 

 

handshake.

72

PD4

Parallel Port Data 4 – Refer to pin-58 and 80 for more information.

 

DSKCHG*

Floppy Disk Change – Senses the drive door is open or the diskette has been

 

 

changed since the last drive selection.

73

DSR2*

Data Set Ready 2 – Indicates external serial device is powered, initialized,

 

 

and ready. Used as hardware handshake with DTR2 for overall readiness.

74

PD3

Parallel Port Data 3 – Refer to pin-58 and 80 for more information.

 

RDATA*

Floppy Read Data – Raw serial bit stream from drive for read operations.

 

 

 

75

CTS2*

Clear To Send 2 – Indicates external serial device is ready to receive data.

 

 

Used as hardware handshake with RTS2 for low level flow control.

76

PD2

Parallel Port Data 2 – Refer to pin-58 and 80 for more information.

 

WP*

Floppy Write Protect – Senses the diskette is write protected.

77

TXD2

Transmit Data 2 – Serial port 2 transmit data out

 

 

 

78

PD1

Parallel Port Data 1 – Refer to pin-58 and 80 for more information.

 

TRK0*

Floppy Track 0 – Sense detects the head is positioned over track 0.

 

 

 

79

RI2*

Ring Indicator 2 – Indicates external serial device is detecting a ring

 

 

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

 

 

communications channel.

44

Reference Manual

XTX 820

Page 49 Page 51
Page 50
Image 50
Ampro Corporation XTX 820 manual Floppy Write Protect Senses the diskette is write protected
Page 49 Page 51

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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