IEI Integration WAFER-LX v1.0 User Manual
Page 95
WAFER-LX User Manual
the parallel port device and the transmission rates
between the two are much faster than the SPP mode.
ECP+EPP
The parallel port will be compatible with both ECP and
EPP devices
Normal
Parallel Port Mode [SPP]
These options are used to select the parallel port operating mode. The options are SPP, EPP,
ECP, ECP+EPP, and Normal. Two specific options avail when either of the ECP or EPP modes
is selected: EPP Mode Select and ECP Mode Use DMA.
If the EPP mode is selected in the Parallel Port Mode configuration option, you will be able to
configure the EPP Mode Select option. The EPP parallel port mode has two standards, EPP 1.7
and EP 1.9. This selection allows you to choose the standard the parallel port will operate in.
Please refer to the parallel device that your system will be connected to and select the EPP mode
accordingly.
EPP1.9
EPP 1.9 is selected as the EPP standard
EPP1.7
(D
EFAULT
)
EPP 1.7 is selected as the EPP standard
x ECP Mode Use DMA [3]
If the ECP mode is selected in the Parallel Port Mode configuration option, you will be able to
configure the ECP Mode Use DMA option. This option determines the DMA channel the parallel
port uses when it is in the ECP mode.
1
Parallel port uses DMA Channel 1 in the ECP mode
3 (D
EFAULT
)
Parallel port uses DMA Channel 3 in the ECP mode
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IEI
®
Technology, Corp.
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