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Ixiasoft
6.2.3.2. Guideline: Using DPA-Disabled Differential Channels
If you use DPA-disabled channels, adhere to the following guidelines.
DPA-Disabled Channel Driving Distance
Each PLL can drive all the DPA-disabled channels located in the entire bank .
Using Corner and Center PLLs
You can use a corner PLL to drive all transmitter channels and a center PLL to drive all DPA-disabled receiver channels in the same I/O bank. You can drive a transmitter channel and a receiver channel in the same LAB row by two different PLLs. A corner PLL and a center PLL can drive duplex channels in the same I/O bank if the channels that are driven by each PLL are not interleaved. You do not require separation between the group of channels that are driven by the corner and center, left and right PLLs. Refer to the following figures.
Using Both Center PLLs
You can use both center PLLs simultaneously to drive DPA-disabled channels on left and right I/O banks. Unlike DPA-enabled channels, the center PLLs can drive DPA-disabled channels cross-banks in the Arria® V GX, GT, SX, and ST devices. For example, the left center PLL can drive the right I/O bank at the same time the right center PLL is driving the left I/O bank, and vice versa, as shown in the following figure.
Using Both Corner PLLs
You can use both corner PLLs to drive DPA-disabled channels simultaneously. You can use a corner PLL to drive all the transmitter channels and the other corner PLL to drive all the DPA-disabled receiver channels in the same I/O bank. Both corner PLLs can drive duplex channels in the same I/O bank if the channels that are driven by each PLL are not interleaved. You do not require separation between the groups of channels that are driven by both corner PLLs.