Altera V-Series Avalon-MM DMA - Manual (Page 12)

Link Rate Link Width Interface
Width
Application Clock
Frequency (MHz)
Recommended Speed Grades
Gen2
x1 64 bits
125
–1, –2, –3, –4
x2 64 bits 125 –1, –2, –3, –4
x4 64 bits 250 –1, –2, –3
x4 128 bits 125 –1, –2, –3, –4
x8 128 bits 250 –1, –2, –3
x8 256 bits 125 –1, –2, –3, –4
Gen3
x1 64 bits 125 –1, –2, –3, –4
x2 64 bits 250 –1, –2, –3, –4
x2 128 bits 125 –1, –2, –3, –4
x4 128 bits 250 –1, –2, –3
x4 256 bits 125 –1, –2, –3,–4
x8 256 bits 250 –1, –2, –3
Table 1-8: Cyclone V Recommended Speed Grades for All Link Widths, Link Widths, and Application Layer
Clock Frequencies
The Gen2 data rate requires Cyclone V GT devices.
Link Rate Link Width Interface
Width
Application Clock
Frequency (MHz)
Recommended Speed Grades
Gen1
×1 64 bits 62.5 (5) ,125 –6, –7,–8
×2 64 bits 125 –6, –7,–8
×4 64 bits 125 –6, –7,–8
Gen2
×1 64 bits
125
–7
×2 64 bits 125 –7
×4 128 bits 125 –7
(5) This is a power-saving mode of operation
UG-01154
2014.12.18
V-Series Recommended Speed Grades 1-11
Datasheet Altera Corporation
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