IPT-C2H-NIOS Altera, IPT-C2H-NIOS Datasheet - Page 51

• Manufacturer Part Number: IPT-C2H-NIOS
• Description: C2H COMPILER FOR NIOS II
• Manufacturer: Altera
• Series: Nios®IIr
• Type: Nios IIr

Specifications of IPT-C2H-NIOS

• Function: C to Hardware Compiler
• License: Initial License
• Software Application: IP CORE, NIOS Processor And Functions
• Core Architecture: FPGA
• Core Sub-architecture: Cyclone
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: Not applicable / Not applicable

Figure 3–7. switch Logic
Altera Corporation
November 2009
Subfunction Calls
A subfunction is a C function called from within an accelerated function.
The C2H Compiler translates subfunctions to hardware using the same
mapping rules as for the top-level function. The resulting HDL module
for the accelerated subfunction becomes a submodule of the top-level
function, as illustrated in
The C2H Compiler translates the top-level function and all subfunctions
to a single hardware accelerator. The C2H Compiler creates only one
instance of the subfunction hardware logic, regardless of how many times
the subfunction is called within the top-level function. If the calling
function calls the subfunction multiple times, the subfunction logic
becomes a shared resource. However, the subfunction is a private
resource exclusive to the calling function. In other words, if multiple
separate, accelerated functions call a common subfunction, the
C2H Compiler creates separate instances of the subfunction logic.
9.1
Figure 3–8 on page
C-to-Hardware Mapping Reference
Nios II C2H Compiler User Guide
3–12.
3–11