Start-Up Latency - 4.1 English

Soft Error Mitigation Controller Product Guide (PG036)

Document ID
PG036
Release Date
2022-05-04
Version
4.1 English

Start-up latency is the delay between the end of FPGA configuration and the completion of the controller initialization, as marked by entry into the observation state. This latency is a function of the FPGA size (frame count) and the solution clock frequency. It is also a function of the selected correction mode.

The start-up latency is incurred only once. It is not part of the mitigation process. Table: Maximum Start-Up Latency at ICAP FMax illustrates start-up latency, decomposed into sub-steps of boot and initialization. The boot time is independent of the selected correction mode, while the initialization time is dependent on the selected correction mode.

Table 2-3: Maximum Start-Up Latency at ICAP F Max

Device

Boot Time at
ICAP F Max

Initialization Time at ICAP
F Max (Repair/Replace)

Initialization Time at ICAP
F Max (Enhanced Repair)

XC7A12T

110 ms

8.5 ms

1.0 s

XC7A15T

110 ms

13.8 ms

1.7 s

XC7A25T

110 ms

8.5 ms

1.0 s

XC7A35T

110 ms

13.8 ms

1.7 s

XC7A50T

110 ms

13.8 ms

1.7 s

XC7A75T

110 ms

24.1 ms

2.9 s

XC7A100T

110 ms

24.1 ms

2.9 s

XC7A200T

110 ms

55.4 ms

6.6 s

XC7K70T

110 ms

17.8 ms

2.1 s

XC7K160T

110 ms

38.8 ms

4.6 s

XC7K325T

110 ms

71.0 ms

9.3 s

XC7K355T

110 ms

79.9 ms

11.9 s

XC7K410T

110 ms

91.5 ms

15.4 s

XC7K420T

110 ms

106.6 ms

21.1 s

XC7K480T

110 ms

106.6 ms

21.1 s

XC7VX330T

110 ms

77.3 ms

11.1 s

XC7VX415T

110 ms

98.1 ms

17.7 s

XC7VX485T

110 ms

115.7 ms

24.5 s

XC7VX550T

110 ms

163.5 ms

48.7 s

XC7VH580T (SSI)

110 ms

74.3 ms

10.2 s

XC7V585T

110 ms

124.4 ms

28.3 s

XC7VX690T

110 ms

163.5 ms

48.7 s

XC7VH870T (SSI)

110 ms

74.3 ms

10.2 s

XC7VX980T

110 ms

213.3 ms

82.6 s

XC7VX1140T (SSI)

110 ms

74.3 ms

10.2 s

XC7V2000T (SSI)

110 ms

95.4 ms

16.7 s

XC7Z007S

110 ms

12.2 ms

1.5 s

XC7Z012S

110 ms

21.7 ms

2.6 s

XC7Z014S

110 ms

24.2 ms

2.9 s

XC7Z010

110 ms

12.2 ms

1.5 s

XC7Z015

110 ms

21.7 ms

2.6 s

XC7Z020

110 ms

24.2 ms

2.9 s

XC7Z030

110 ms

34.1 ms

4.1 s

XC7Z035

110 ms

82.0 ms

11.8 s

XC7Z045

110 ms

82.0 ms

11.8 s

XC7Z100

110 ms

103.4 ms

19.6 s

XC7S6

110 ms

3.8 ms

1.0 s

XC7S15

110 ms

3.8 ms

1.0 s

XC7S25

110 ms

8.5 ms

1.0 s

XC7S50

110 ms

13.8 ms

1.7 s

XC7S75

110 ms

23.8 ms

2.9 s

XC7S100

110 ms

23.8 ms

2.9 s

The start-up latency is the sum of the boot and initialization latency, using the correct column of initialization latency data for the selected correction mode. The start-up latency at the actual frequency of operation can be estimated using data from Table: Maximum Start-Up Latency at ICAP FMax and This Equation .

Equation 2-1 pg036_product_spec00002.jpg