Chapter 3

Hardware

J1

Signal

PCI

Description

Pin #

 

Pin #

 

 

GNT*

17 (A17)

Grant – This is a point-to-point signal and indicates to the agent that

 

 

 

access to the bus has been granted. Every master has its own GNT,

 

 

 

which must be ignored while RST is asserted.

 

Ground

18 (A18)

Ground

57

PME*

19 (A19)

Power Management Event – This signal is an optional signal that can

 

 

 

be used by a device to request a change in the device or system

 

 

 

power state.

91

AD30

20 (A20)

Address/Data bus 30 – These signals (AD31 – AD0) are multiplexed

 

 

 

on the same PCI connector pins. During the address phase of a PCI

 

 

 

cycle, AD31–AD0 contain a 32-bit address or other destination

 

 

 

information. During the data phase, AD31 – AD0 contain data.

 

+3.3V

21 (A21)

+3.3 Volt Power

87

AD28

22 (A22)

Address/Data bus 28 – Refer to Pin-20 (A20) for more information

 

 

 

 

86

AD26

23 (A23)

Address/Data bus 26 – Refer to Pin-20 (A20) for more information

 

Ground

24 (A24)

Ground

81

AD24

25 (A25)

Address/Data bus 24 – Refer to Pin-20 (A20) for more information)

 

 

 

 

60

DEVSEL

26 (A26)

Initialization Device Select – This signal is used as a chip select

 

 

 

during configuration read and write transactions.

 

+3.3V

27 (A27)

+3.3 Volt Power

77

AD22

28 (A28)

Address/Data bus 22 – Refer to Pin-20 (A20) for more information

75

AD20

29 (A29)

Address/Data bus 20 – Refer to Pin-20 (A20) for more information

 

 

 

 

 

Ground

30 (A30)

Ground

74

AD18

31 (A31)

Address/Data bus 18 – Refer to Pin-20 (A20) for more information

 

 

 

 

69

AD16

32 (A32)

Address/Data bus 16 – Refer to Pin-20 (A20) for more information

 

 

 

 

 

+3.3V

33 (A33)

+3.3 Volt Power

65

FRAME*

34 (A34)

PCI bus Frame access – This signal is driven by the current master to

 

 

 

indicate the start of a transaction and will remain active until the

 

 

 

final data cycle.

 

Ground

35 (A35)

Ground

61

TRDY*

36 (A36)

Target Ready – This signal indicates the selected device’s ability to

 

 

 

complete the current cycle of transaction. Both IRDY* and TRDY*

 

 

 

must be asserted to terminate a data cycle.

 

Ground

37 (A37)

Ground

64

STOP*

38 (A38)

Stop – This signal is driven by the current PCI target to request the

 

 

 

master to stop the current transaction.

 

+3.3V

39 (A39)

+3.3 Volt Power

 

Reserved*

40 (A40)

Reserved

 

Reserved*

41 (A41)

Reserved

 

 

 

 

 

Ground

42 (A42)

Ground

53

PAR

43 (A43)

PCI bus Parity bit – This signal is the even parity bit on AD[31:0]

 

 

 

and CBE[3:0]*.

47

AD15

44 (A44)

Address/Data bus 15 – Refer to Pin-20 (A20) for more information

 

 

 

 

 

+3.3V

45 (A45)

+3.3 Volt Power

20

Reference Manual

XTX 820

Page 25 Page 27
Page 26
Image 26
Ampro Corporation XTX 820 manual Gnt, Pme, Devsel, Frame, Trdy, Stop, Par
Page 25 Page 27

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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