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TR10a-LPQ User Manual
December
10,
2018
controllers.
Figure 5-1 Function Block Diagram of the QDRII+ SRAM x4 Demonstration
The
QDRIIA/B/C/D/E_REFCLK
is generated from Si5340A which configured 275MHz
for QDRII+ 550MHz by Clock Config module.
QDRIIA/B/C/D/E _REFCLK
has no default
frequency output so that they must be configured first.
In this demonstration, each QDRII+ SRAM has its own PLL, DLL and OCT resources.
The Arria 10 EMIF QDRII IP uses a Hard PHY and a soft Controller. The Hard PHY
capable of performing key memory interface functionality such as read/write leveling,
FIFO buffering to lower latency and improve margin, timing calibration, and on-chip
termination.
The Avalon bus read/write test (RW_test) modules read and write the entire memory
space of each QDRII+ SRAM through the Avalon interface of each controller. In this
project, the RW_test module will first write the entire memory and then compare the