Cyclone V Device Datasheet

ID 683801
Date 11/27/2019
Public
Document Table of Contents

FPP Configuration Timing when DCLK-to-DATA[] = 1

When you enable decompression or the design security feature, the DCLK-to-DATA[] ratio varies for FPP ×8 and FPP ×16. For the respective DCLK-to-DATA[] ratio, refer to the DCLK-to-DATA[] Ratio for Cyclone® V Devices table.

Table 58.  FPP Timing Parameters When DCLK-to-DATA[] Ratio is 1 for Cyclone® V DevicesThe specifications in this table are not applicable to Cyclone® V QS package.
Symbol Parameter Minimum Maximum Unit
tCF2CD nCONFIG low to CONF_DONE low 600 ns
tCF2ST0 nCONFIG low to nSTATUS low 600 ns
tCFG nCONFIG low pulse width 2 µs
tSTATUS nSTATUS low pulse width 268 150677 µs
tCF2ST1 nCONFIG high to nSTATUS high 150678 µs
tCF2CK 79 nCONFIG high to first rising edge on DCLK 1506 µs
tST2CK 79 nSTATUS high to first rising edge of DCLK 2 µs
tDSU DATA[] setup time before rising edge on DCLK 5.5 ns
tDH DATA[] hold time after rising edge on DCLK 0 ns
tCH DCLK high time 0.45 × 1/fMAX s
tCL DCLK low time 0.45 × 1/fMAX s
tCLK DCLK period 1/fMAX s
fMAX DCLK frequency (FPP ×8/ ×16) 125 MHz
tCD2UM CONF_DONE high to user mode80 175 437 µs
tCD2CU CONF_DONE high to CLKUSR enabled 4× maximum DCLK period
tCD2UMC CONF_DONE high to user mode with CLKUSR option on tCD2CU + (Tinit × CLKUSR period)
Tinit Number of clock cycles required for device initialization 8,576 Cycles
77 You can obtain this value if you do not delay configuration by extending the nCONFIG or the nSTATUS low pulse width.
78 You can obtain this value if you do not delay configuration by externally holding the nSTATUS low.
79 If nSTATUS is monitored, follow the tST2CK specification. If nSTATUS is not monitored, follow the tCF2CK specification.
80 The minimum and maximum numbers apply only if you chose the internal oscillator as the clock source for initializing the device.

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