Arria® V Device Datasheet

ID 683022
Date 5/23/2023
Public
Document Table of Contents

2.3.3.1. DCLK-to-DATA[] Ratio (r) for FPP Configuration

FPP configuration requires a different DCLK-to-DATA[] ratio when you turn on encryption or the compression feature.
Table 133.  DCLK-to-DATA[] Ratio for Arria V GZ DevicesDepending on the DCLK-to-DATA[] ratio, the host must send a DCLK frequency 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 DCLK frequency 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 Design Security DCLK-to-DATA[] Ratio
FPP ×8 Disabled Disabled 1
Disabled Enabled 1
Enabled Disabled 2
Enabled Enabled 2
FPP ×16 Disabled Disabled 1
Disabled Enabled 2
Enabled Disabled 4
Enabled Enabled 4
FPP ×32 Disabled Disabled 1
Disabled Enabled 4
Enabled Disabled 8
Enabled Enabled 8