AMC dimPCI 68VZ328 Uživatelský manuál stáhnout pdf (Strana 31)

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has been extended to include ‘readb/readw/readl and writeb/writew/writel’ functions.

The PCI BIOS also includes extensions to perform DMA transfers, and to manage the DPRAM.

Drivers may request a transfer using shared DPRAM. Drivers for high bandwidth devices may

request a private and permanent allocation of the DPRAM. The DMA mechanism allows the

device driver to block or not until the requested transfer(s) have completed. The PCI BIOS uses

interrupt driven code to manage the request queues.

PCI DRIVERS

The ‘/proc/pci’ may be used to display a list of active PCI devices.

Electrical Characteristics

• Operating Voltage (nominal) 3.3VDC / 5VDC

• Operating Current 75 mA @ 3V with PCI

36 mA @ 5V with PCI

Maximum Ratings

• Operating temperature 0 to +70 degrees C

• Storage temperature -20 to +85 degrees C

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AMC dimPCI 68VZ328 Uživatelský manuál Strana 31