AV-51002
2017.02.10
2-58
DCLK-to-DATA[] Ratio (r) for FPP Configuration
Table 2-55: DCLK-to-DATA[] Ratio for Arria V GZ Devices
Depending on the DCLK-to-DATA[]ratio, the host must send a DCLKfrequency that is r times the data rate in bytes per second (Bps), or words per
second (Wps). For example, in FPP ×16 when the DCLK-to-DATA[]ratio is 2, the DCLKfrequency must be 2 times the data rate in Wps. Arria V GZ
devices use the additional clock cycles to decrypt and decompress the configuration data.
Configuration Scheme
Decompression
Disabled
Disabled
Enabled
Design Security
Disabled
Enabled
DCLK-to-DATA[] Ratio
1
1
2
2
1
2
4
4
1
4
8
8
FPP ×8
Disabled
Enabled
Enabled
Disabled
Disabled
Enabled
Disabled
Enabled
FPP ×16
FPP ×32
Disabled
Enabled
Enabled
Disabled
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
Enabled
Arria V GZ Device Datasheet
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