Diamond Systems Low-Power PC/104 CPU Board With ZFx86 Processor Watchdog/Failsafe Features J6

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4.5 Auxiliary Serial Port Connector – J15

1

2

3

4

5

6

RX COM1

Pin 2 on DB9 #1

TX COM1

Pin 3 on DB9 #1

Ground

Pin 5 on DB9 #1

RX COM2

Pin 2 on DB9 #2

TX COM2

Pin 3 on DB9 #2

Ground

Pin 5 on DB9 #2

This 6-pin header is provided for auxiliary access to serial ports 1 and 2 with signals RX, TX, and Ground for each port. This connector may be used in low-cost limited I/O configurations as an alternative to the 80-pin connector J3.

Do not use both J15 and the corresponding pins on J3 simultaneously.

Diamond Systems’ cable no. 698005 converts the 6 pins to two standard DB9M connectors with industry-standard pinout for RS-232 DTE.

4.6 Watchdog/Failsafe Features – J6

ZFIX

1

2

+3.3V

3

4

PRST-

5

6

Ground

WDI

WDO

J6 serves two main functions. It is used for watchdog timer access, and it is used to enable the ZFx86 failsafe feature (ZFIX mode) for reprogramming the BIOS or downloading files to the flash memory. J6 also contains a reset indicator signal PRST- that goes low for 200ms whenever a system reset occurs.

When the CPU is installed with a Panel Board, the failsafe feature is activated with a momentary switch on the panel board labeled ZFIX, and the watchdog timer feature is accessed with header J9 on the upper right edge of the panel board.

The watchdog timer circuit is described on page 18 of this manual. It may be programmed directly, as described in the ZFx86 training manual included with the Prometheus-LC documents, or with Diamond Systems’ Universal Driver software.

The failsafe feature is described on page 19 of this manual.

Prometheus-LC CPU User Manual V1.0

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Contents PROMETHEUS-LC Table of Contents 12.4 12.112.2 12.3Description Processor Section FeaturesSystem Features J4 Not present PROMETHEUS-LC Board DrawingCable B Main I/O Connector J3O Headers Cable aCOM1 COM4 Connector Part NumbersInput Power J11 USB J5 Output Power J12Watchdog/Failsafe Features J6 Auxiliary Serial Port Connector J15IDE Drive J8 Floppy Drive J7J2 PC/104 16-bit bus connector J1 PC/104 8-bit bus connector PC/104 Bus ConnectorsSystem Configuration J10 Jumper ConfigurationWatchdog Timer & System Recovery J6 CPU Chip Selects System FeaturesSystem Resources Console Redirection to a Serial Port Watchdog Timer Flash Memory Failsafe Mode / Bios RecoveryBackup Battery System ResetBios Settings Bios FeaturesGround Bios Download / RecoveryOperating System Formatting Initial SetupDISK-ON-BOARD Flash File Storage Life Cycle Management and Calculations Known LimitationsParallel Port System I/OSerial Ports Installing an OS From a Floppy Drive onto a Flashdisk Module Installing an OS from a Hard Disk onto a Flashdisk Module Flashdisk Module ConfigurationUsing the Flashdisk with Another IDE Drive Power SupplyDescription 12. I/O Panel BoardPanel Board Hardware Panel Board I/O ConnectorsPanel Board Top Side / External Use I/O Connectors Location Type DescriptionJ12 pinout to/from DC/DC power supply Panel Board Power ConnectionsJ3 Pinout J5 USB J9 Pinout InstallationFlash Disk Programmer Board Cable Kit C-PRZ-KIT 14.I/O CablesPhoto No Cable No Description PL5 pin no DB15F pin no Signal VGA Accessory BoardPL5 pin no PL5 Signal J25 pin no J25 Signal Website information Connector on Board Manufacturer Manufacturer Part NoMounting PROMETHEUS-LC on a Baseboard Page 17.PC/104 Mechanical Drawing

Low-Power PC/104 CPU Board With ZFx86 Processor, PR-Z16-LC-ST specifications

The Diamond Systems Low-Power PC/104 CPU Board featuring the ZFx86 Processor, specifically the PR-Z16-LC-ST model, represents a significant advancement in embedded computing technology. This CPU board is designed to deliver robust performance while maintaining low power consumption, making it ideal for a wide array of industrial and embedded applications.

One of the standout features of the PR-Z16-LC-ST board is its ZFx86 Processor. This processor family is built with a focus on energy efficiency and low thermal output, which is crucial for applications where heat dissipation can be a challenge. The ZFx86 provides an excellent balance between processing power and energy consumption, featuring a 16-bit instruction set that facilitates compatibility with many existing software applications.

This board supports a variety of operating environments, including DOS, Linux, and Windows, ensuring versatility for developers. Its design includes a compact PC/104 form factor, which allows for streamlined stacking of multiple boards. This modularity is beneficial for system integrators looking to create customized solutions with limited space.

In terms of connectivity, the PR-Z16-LC-ST is equipped with a wide range of I/O ports. This includes digital and analog inputs and outputs, serial communication ports, and support for various peripheral devices. Such features make it a suitable choice for tasks such as data acquisition, control systems, and automation processes.

Additionally, the Diamond Systems board is designed with an onboard memory expansion capability, allowing users to enhance performance based on specific application needs. The support for both DRAM and flash memory options provides flexibility in memory configuration.

The board also emphasizes reliability and longevity, with rugged construction suitable for harsh environments. This durability is essential for applications in sectors such as transportation, telecommunications, and factory automation, where systems must withstand extreme conditions.

In summary, the Diamond Systems PR-Z16-LC-ST Low-Power PC/104 CPU Board with ZFx86 Processor combines efficiency with a robust feature set. Its low power consumption, modular design, and extensive connectivity options make it an attractive solution for developers in the embedded computing space seeking reliable performance in compact configurations.
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