Architecture
Floorplan
QLSOFA HD FPGA share the same floorplan as SOFA HD FPGA. See details at Floorplan.
Tiles
The FPGA architecture follows a tile-based organization, to exploit the fine-grainularity in physical design, where three types of tiles are built:
Type |
Capacity |
Description |
|---|---|---|
CLB |
144 |
Each CLB tile consists of
- a Configurable Logic Block (CLB)
- a X-direction Connection Block (CBx)
- a Y-direction Connection Block (CBy)
- a Switch Block (SB).
This is the majority tile across the fabric
to implement logics and registers.
|
IO-A |
36 |
The type-A I/O is a low-density I/O tile
which is designed to mainly interface
the GPIOs of the SoC.
Each I/O-A tile consists of 1 digitial I/O
cell.
|
IO-B |
12 |
The type-B I/O is a high-density I/O tile
which is designed to mainly interface
the wishbone interface and logic analyzer
of the SoC.
Each I/O-B tile consists of 9 digitial I/O
cells.
|
Routing Architecture
The routing architecture shares the same principle as the SOFA HD routing architecture (See details in Routing Architecture).
Note
Different from SOFA HD, each routing channel consists of 60 routing tracks. See details in Table 11.
Track type |
Number of tracks per channel |
|---|---|
Length-1 |
6 (10%) |
Length-2 |
6 (10%) |
Length-4 |
48 (80%) |
Total |
60 |
Scan-chain
QLSOFA HD FPGA share the same floroplan as SOFA HD FPGA. See details at Scan-chain.