EP3SE50F780I3N Altera, EP3SE50F780I3N Datasheet - Page 342

• Manufacturer Part Number: EP3SE50F780I3N
• Description: Stratix III
• Manufacturer: Altera

Differential Pin Placement Guidelines
9–26
Stratix III Device Handbook, Volume 1
Using Both Center Left/Right PLLs
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Both center left/right PLLs can be used to drive DPA-enabled
channels simultaneously, as long as they drive these channels in their
adjacent banks only, as shown in
If one of the center left/right PLLs drives the top and bottom banks,
the other center left/right PLL cannot be used to drive differential
channels, as shown in
If the top PLL_L2/PLL_R2 drives DPA-enabled channels in the
lower differential bank, the PLL_L3/PLL_R3 cannot drive
DPA-enabled channels in the upper differential banks and vice
versa. In other words, the center left/right PLLs cannot drive cross-
banks simultaneously, as shown in
Figure
9–21.
Figure
Figure
9–21.
9–22.
Altera Corporation
November 2007