Altera 8B10B Encoder/Decoder MegaCore Function - Manual (Page 7)

Chapter 1: About This MegaCore Function 1–3
Performance and Resource Utilization
May 2011 Altera Corporation 8B10B Encoder/Decoder MegaCore Function User Guide
Performance and Resource Utilization
This section lists the resource utilization and performance of the 8B10B
Encoder/Decoder MegaCore function in different Altera device families. These
results were obtained using the Quartus
® II software version 9.1 with the auto-ROM
replacement feature disabled. Enabling this feature produces a smaller but slower
MegaCore function.
Table 1–3 shows the performance and resource utilization for Cyclone II
(EP2C35F484C6) and Cyclone III (EP3C80F780C6).
Table 1–4 shows the performance and resource utilization for Stratix II
(EP2S30F484C3) and Stratix III (EP3SE110F780C2). The performance of the MegaCore
function in Stratix IV devices is similar to Stratix III devices.
Table 1–3. Resource Utilization and Performance (Cyclone II and Cyclone III)
Device
Parameters
LEs f
MAX
(MHz) (1)
Mode of Operation
Register
Inputs/Outputs
Cyclone II
Encoder On 100 250
Encoder Off 107 403
Decoder – 131 403
Cyclone III
Encoder On 100 250
Encoder Off 107 403
Decoder – 131 403
Note to Table 1–3 :
(1) f
MAX
is for non-cascaded encoders/decoders.
Table 1–4. Resource Utilization and Performance (Stratix II and Stratix III)
Device
Parameters
Combinational
ALUTs
Logic
Registers
f
MAX
(MHz) (1)
Mode of Operation
Register
Inputs/Outputs
Stratix II
Encoder On 61 51 444
Encoder Off 68 13 585
Decoder – 55 33 447
Stratix III
Encoder On 60 51 510
Encoder Off 68 13 675
Decoder – 55 33 520
Note to Table 1–4 :
(1) f
MAX
is for non-cascaded encoders/decoders.