Dedicated source-synchronous circuitry, Figure 3–13 – Altera PowerPlay Early Power Estimator User Manual
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Altera Corporation
3–15
October 2005
PowerPlay Early Power Estimator User Guide: Stratix, Stratix GX & Cyclone FPGAs
Using PowerPlay Early Power Estimator for Stratix, Stratix GX & Cyclone FPGAs
Figure 3–13. HSDI Section in the Stratix PowerPlay Early Power Estimator
Dedicated Source-Synchronous Circuitry
The Dedicated Source-Synchronous Circuitry section is only found in 
the Stratix GX device PowerPlay early power estimator. The dedicated 
source-synchronous circuitry in Stratix GX devices support a source-
synchronous high-speed interface and differential data rates up to 
1 gigabit per second (Gbps). Stratix GX devices support the 
HyperTransport technology, LVDS, LVPECL, and 3.3 V PCML 
differential I/O standards. Each Stratix GX receiver channel features a 
dynamic phase alignment (DPA) block. If you are using the DPA feature, 
choose DPA On: If you are not using the DPA feature, choose Bypass 
from the DPA On/Bypass drop-down menu. The dedicated 
source-synchronous circuitry section in the Stratix GX PowerPlay early 
power estimator is divided into two parts; Receiver and Transmitter. 
Each row represents a separate receiver or transmitter domain. For each 
receiver domain used, you need to enter the data rate (Mbps), the number 
of channels in that receiver domain, and if DPA is on or bypassed. For 
each transmitter domain used, you need to enter the data rate (Mbps), the 
number of channels in that transmitter domain, the toggle percentage of 
