NOTES ON PARALLEL-PCI MODES OF OPERATION (ECP and EPP)

NOTE 1:

The LAVA Parallel-PCI card works only in EPP mode !!!     

There are no jumpers to set, nor are there any registry settings to set, nor are there any settings to set in Control Panel for this card.

NOTE 2:

Some devices do not see the Parallel-PCI in EPP mode. There a couple of possible reasons for this.

1) Our card can only do 8 bit transfers. Many devices need 16 or 32 bit transfers. IEEE 1284 EPP does not require the port to have 16 or 32 transfers for it to be EPP.

2) Since our card is PCI, its interrupt is level triggered. ISA-based parallel ports are edge triggered. Many devices are looking for our interrupt on the rising edge. The way interrupts are triggered on PCI cards cannot be changed.