EP4CE6E22C8 Datasheet, PDF (8/14 Pages) Altera Corporation – Cyclone IV FPGA Device Family Overview

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Chapter 1: Cyclone IV FPGA Device Family Overview
Cyclone IV Device Family Architecture
Cyclone IV Device Family Architecture
This section describes Cyclone IV device architecture and contains the following
topics:
■ “FPGA Core Fabric”
■ “I/O Features”
■ “Clock Management”
■ “External Memory Interfaces”
■ “Configuration”
■ “High-Speed Transceivers (Cyclone IV GX Devices Only)”
■ “Hard IP for PCI Express (Cyclone IV GX Devices Only)”
FPGA Core Fabric
Cyclone IV devices leverage the same core fabric as the very successful Cyclone series
devices. The fabric consists of LEs, made of 4-input look up tables (LUTs), memory
blocks, and multipliers.
Each Cyclone IV device M9K memory block provides 9 Kbits of embedded SRAM
memory. You can configure the M9K blocks as single port, simple dual port, or true
dual port RAM, as well as FIFO buffers or ROM. They can also be configured to
implement any of the data widths in Table 1–7.
Table 1–7. M9K Block Data Widths for Cyclone IV Device Family
Mode
Data Width Configurations
Single port or simple dual port
True dual port
×1, ×2, ×4, ×8/9, ×16/18, and ×32/36
×1, ×2, ×4, ×8/9, and ×16/18
The multiplier architecture in Cyclone IV devices is the same as in the existing
Cyclone series devices. The embedded multiplier blocks can implement an 18 × 18 or
two 9 × 9 multipliers in a single block. Altera offers a complete suite of DSP IP
including finite impulse response (FIR), fast Fourier transform (FFT), and numerically
controlled oscillator (NCO) functions for use with the multiplier blocks. The
Quartus^® II design software’s DSP Builder tool integrates MathWorks Simulink and
MATLAB design environments for a streamlined DSP design flow.
f For more information, refer to the Logic Elements and Logic Array Blocks in Cyclone IV
Devices, Memory Blocks in Cyclone IV Devices, and Embedded Multipliers in Cyclone IV
Devices chapters.
Cyclone IV Device Handbook,
Volume 1
February 2013 Altera Corporation