GDA's
CFFT core can either be implemented
as a stand-alone component for real-time data
or can be interfaced to the system bus. Bus
interfacing requires the inclusion of the VCI
Bus Controller Unit to the CFFT
core. In a stand-alone environment, the CFFT
core operates on the real-time input data. When
configured for real-time input and bus- interfaced
output, the VCI Bus Output
controller is included. To provide the system
designer with maximum flexibility of I/O
interface and memory architecture, no data storage
has been included in the core. The designer
must supply the data memory as an external component.
The core supplies a number of control signals
that permits simple interfacing to several banks
of on-chip RAM.
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| * - Generally sold with GDA services only |
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Features |
- High performance
(up to 1024-point) pipelined complex
FFT and inverse FFT (IFFT)
- Fixed-point and Floating-point
configurable implementation
- FFT/IFFT selectable
via pin in real-time mode of operation
and using software configurable registers
when bus interfaced
- Parameterized for data
width w, and address bus width, add_w
- Naturally ordered input
and output data
- Support for pipelined
data input, transform calculations and
data output operations
- When interfaced to
a system bus, the read and write transactions
between the core and the system uses
the PVCI handshake protocol
- Supports real-time
input and output interface
- Facilitates interrupt
driven data transfer at the input and
output
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