LFEC3E-3QN208I Lattice, LFEC3E-3QN208I Datasheet - Page 367

• Manufacturer Part Number: LFEC3E-3QN208I
• Description: IC FPGA 3KLUTS 208PQFP
• Manufacturer: Lattice
• Series: EC3r

Specifications of LFEC3E-3QN208I

• Number Of Logic Elements/cells: 3100
• Number Of Labs/clbs: -
• Total Ram Bits: 56320
• Number Of I /o: 145
• Number Of Gates: -
• Voltage - Supply: 1.14 V ~ 1.26 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 208-BFQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q6377645

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Lattice Semiconductor
LatticeECP-DSP sysDSP Usage Guide
MULTADDSUBSUM Module
The MULTADDSUBSUM GUI configures Multiplier Addition/Subtraction Addition elements to be packed into the
primitives MULT18X18ADDSUBSUM or MULT9X9ADDSUBSUM. The Basic mode, shown in Figure 15-8, consists
of one clock (optional), one clock enable and one reset tied to all registers. Using the MULTADDSUBSUM you can
span multiple sysDSP Blocks. The SRI and SRO ports can only be enabled if inputs are less than 18 bits. The
Advanced mode, shown in Figure 15-9, provides finer control over the registers. In the Advanced mode you can
control each register with independent clocks, clock enables and resets.
Figure 15-8. MULTADDSUBSUM Mode Basic Set-up
15-6