Beckhoff CB1050 Manual page 62

Chapter: BIOS Settings
 Use IR Pins
Options: RxD2,TxD2 / IR-Rx2Tx2
 Onboard Parallel Port
Options: Disabled / 378/IRQ7 / 278/IRQ5 / 3BC/IRQ7
 Parallel Port Mode
Options: SPP / EPP / ECP / ECP+EPP / Normal
 EPP Mode Select
Options: EPP1.9 / EPP1.7
 ECP Mode Use DMA
Options: 1 / 3
page 62 Beckhoff New Automation Technology CB1050
Integrated Peripherals