EP4SE360F35I4 Datasheet, PDF (82/432 Pages) Altera Corporation – This section provides a complete overview of all features relating to the Stratix IV device family, which is the most architecturlly advanced

4–2
Chapter 4: DSP Blocks in Stratix IV Devices
Stratix IV DSP Block Overview
Stratix IV DSP Block Overview
Each Stratix IV device has two to seven columns of DSP blocks that implement
multiplication, multiply-add, multiply-accumulate (MAC), and dynamic shift
functions efficiently. Architectural highlights of the Stratix IV DSP block include:
■ High-performance, power optimized, fully registered, and pipelined
multiplication operations
■ Natively supported 9-, 12-, 18-, and 36-bit wordlengths
■ Natively supported 18-bit complex multiplications
■ Efficiently supported floating-point arithmetic formats (24-bit for single precision
and 53-bit for double precision)
■ Signed and unsigned input support
■ Built-in addition, subtraction, and accumulation units to combine multiplication
results efficiently
■ Cascading 18-bit input bus to form the tap-delay line for filtering applications
■ Cascading 44-bit output bus to propagate output results from one block to the next
block without external logic support
■ Rich and flexible arithmetic rounding and saturation units
■ Efficient barrel shifter support
■ Loopback capability to support adaptive filtering
Table 4–1 lists the number of DSP blocks for the Stratix IV device family.
Table 4–1. Number of DSP Blocks in Stratix IV Devices (Part 1 of 2)
Family
Device
Independent Input and Output Multiplication Operators
High-Precision
Multiplier
Adder Mode
Four
Multiplier
Adder
Mode
EP4SE230
EP4SE360
Stratix IV E
EP4SE530
EP4SE820
EP4SGX70
EP4SGX110
EP4SGX180
EP4SGX230
Stratix IV GX
EP4SGX290
EP4SGX360 ⁽¹⁾
EP4SGX360 ⁽²⁾
EP4SGX530
9×9
12 × 12
18 × 18
Multipliers Multipliers Multipliers
161 1,288
966
644
130 1,040
780
520
128 1,024
768
512
120
960
720
480
48
384
288
192
64
512
384
256
115
920
690
460
161 1,288
966
644
104
832
624
416
130 1,040
780
520
128 1,024
768
512
128 1,024
768
512
18 × 18
Complex
322
260
256
240
96
128
230
322
208
260
256
256
36 × 36
Multipliers
322
260
256
240
96
128
230
322
208
260
256
256
18 × 36
Multipliers
644
520
512
480
192
256
460
644
416
520
512
512
18 × 18
Multipliers
1288
1040
1024
960
384
512
920
1288
832
1,040
1,024
1,024
Stratix IV Device Handbook
Volume 1
February 2011 Altera Corporation