EP2AGX65DF29I5N Altera, EP2AGX65DF29I5N Datasheet - Page 86

• Manufacturer Part Number: EP2AGX65DF29I5N
• Description: IC ARRIA II GX FPGA 65K 780FBGA
• Manufacturer: Altera
• Series: Arria II GXr

Specifications of EP2AGX65DF29I5N

• Number Of Logic Elements/cells: 60214
• Number Of Labs/clbs: 2530
• Total Ram Bits: 5246
• Number Of I /o: 364
• Voltage - Supply: 0.87 V ~ 0.93 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 780-FBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -

4–14
Arria II Operational Mode Descriptions
Figure 4–7. 18-Bit Independent Multiplier Mode Shown for Half-DSP Block
Note to
(1) Block output for accumulator overflow and saturate overflow.
Arria II Device Handbook Volume 1: Device Interfaces and Integration
Figure
Independent Multiplier Modes
4–7:
dataa_0[17..0]
datab_0[17..0]
dataa_1[17..0]
datab_1[17..0]
This section describes the operation modes of Arria II devices.
In the independent input and output multiplier mode, the DSP block performs
individual multiplication operations for general-purpose multipliers.
9-Bit, 12-Bit, and 18-Bit Multiplier
You can configure each DSP block multiplier for 9-bit, 12-bit, or 18-bit multiplication.
A single DSP block can support up to eight individual 9 × 9 multipliers, six 12 × 12
multipliers, or up to four individual 18 × 18 multipliers. For operand widths up to
9 bits, a 9 × 9 multiplier is implemented. For operand widths from 10 to 12 bits, a
12 × 12 multiplier is implemented and for operand widths from 13 to 18 bits, an
18 × 18 multiplier is implemented. This is done by the Quartus II software by zero
padding the LSBs.
Figure
multiplier operation mode.
signals.
clock[3..0]
ena[3..0]
aclr[3..0]
4–7,
18
18
18
18
Figure
Half-DSP Block
4–8, and
output_saturate
output_round
Figure 4–9
Table 4–9 on page 4–30
signb
signa
show the DSP block in the independent
lists the DSP block dynamic
Chapter 4: DSP Blocks in Arria II Devices
36
36
overflow (1)
Arria II Operational Mode Descriptions
December 2010 Altera Corporation
result_1[ ]
result_0[ ]