Adlink PCI-8554 Manual do Utilizador descarregar pdf (Página 12)

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Introduction

Figure 1: Functional Block diagram

1.1 Features

The cPCI/PCI-8554/R Counter / Timer and digital I/O Card provides the

following advanced features:

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Four 8254 chips provide twelve 16 bits down counters

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Multi-configurations of counters / timers:

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Flexible setting for each independent counter, the clock

source could be external, internal or cascaded. The gate

signal is external controlled or internal enabled.

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Provide debounce function with flexible setting to prevent

from bounce phenomenon when using external clocks.

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8 digital output channels

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8 digital input channels

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Dual interrupt sources

3 From output of counter #12, or

3 From external source.

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100-pin SCSI-II female connector.

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PCI-Bus

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Adlink PCI-8554 Manual do Utilizador Página 12