Recommended speed grades – Altera Stratix V Avalon-MM Interface for PCIe Solutions User Manual
Page 11

Table 1-5: Performance and Resource Utilization Avalon-MM Hard IP for PCI Express
Interface Width
ALMs
M20K Memory Blocks
Logic Registers
Avalon-MM Bridge
64
1100
17
1500
128
1900
25
2900
Avalon-MM Interface–Completer Only
64
650
8
1000
128
1400
12
2400
Avalon-MM–Completer Only Single Dword
64
250
0
350
Note: Soft calibration of the transceiver module requires additional logic. The amount of logic required
depends upon the configuration.
Related Information
Recommended Speed Grades
Table 1-6: Stratix V Recommended Speed Grades for All Avalon-MM Widths and Frequencies
Lane Rate
Link Width
Interface Width
Application Clock
Frequency (MHz)
Recommended Speed Grades
Gen1
×8
128 Bits
125
–1, –2, –3, –4
Gen2
×4
128 bits
125
–1, –2, –3, –4
×8
128 bits
250
–1, –2, –3
Gen3
×2
128 bits
125
–1, –2, –3
(2)
×4
128 bits
250
–1, –2, –3
(2)
×8
256 bits
250
–1, –2, –3
(2)
(2)
The -4 speed grade is also possible for this configuration; however, it requires significant effort by the end
user to close timing.
1-10
Recommended Speed Grades
UG-01097_avmm
2014.12.15
Altera Corporation
Datasheet