EP2AGX65DF29I5N Altera, EP2AGX65DF29I5N Datasheet - Page 102

• 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: -

4–30
Table 4–9. DSP Block Dynamic Signals for DSP Block in Arria II Devices (Part 1 of 2)
Arria II Device Handbook Volume 1: Device Interfaces and Integration
DSP Block Dynamic Signals per Half-DSP Block
signa
signb
output_round
chainout_round
output_saturate
chainout_saturate
accum_sload
zero_chainout
zero_loopback
rotate
Signal Name
DSP Block Control Signals
If both the rounding and saturation logic units are used for an accumulation type of
operation, the format is:
Result = SAT[RND[
You can configure the Arria II DSP block with a set of static and dynamic signals. At
run time, you can configure the DSP block dynamic signals to toggle or not.
Table 4–9
block dynamic signals.
Signed/unsigned control for all multipliers and adders.
signa for “multiplicand” input bus to dataa[17:0] each multiplier.
signb for “multiplier” input bus datab[17:0] to each multiplier.
■
■
■
■
Round control for first stage round/saturation block.
■
■
Round control for second stage round/saturation block.
■
■
Saturation control for first stage round/saturation block for Q-format
multiply. If both rounding and saturation is enabled, saturation is done
on the rounded result.
■
■
Saturation control for second stage round/saturation block for
Q-format multiply. If both rounding and saturation is enabled,
saturation is done on the rounded result.
■
■
Dynamically specifies whether the accumulator value is zero.
■
■
Dynamically specifies whether the chainout value is zero.
Dynamically specifies whether the loopback value is zero.
rotation = 1, rotation feature is enabled
shows a list of dynamic signals for the DSP block.
signa = 1, signb = 1 for signed-signed multiplication
signa = 1, signb = 0 for signed-unsigned multiplication
signa = 0, signb = 1 for unsigned-signed multiplication
signa = 0, signb = 0 for unsigned-unsigned multiplication
output_round = 1 for rounding on multiply output
output_round = 0 for normal multiply output
chainout_round = 1 for rounding on multiply output
chainout_round = 0 for normal multiply output
output_saturate = 1 for saturation support
output_saturate = 0 for no saturation support
chainout_saturate = 1 for saturation support
chainout_saturate = 0 for no saturation support
accum_sload = 0, accumulation input is from the output registers
accum_sload = 1, accumulation input is set to be zero
∑
(A × B)]]
Function
Chapter 4: DSP Blocks in Arria II Devices
Arria II Operational Mode Descriptions
December 2010 Altera Corporation
Table 4–9
lists the DSP
Count
2
1
1
1
1
1
1
1
1