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Hardware Errata Details
This section provides a detailed description of each hardware issue known at the release time of this document.
DCM Using CLK2X Feedback May Lose Lock
Applications Affected by This Issue
This issue only affects applications that use the DCM CLK2X output signal as the CLKFB feedback input to the DCM.
This issue only affects the XC3S200 FPGAs shown in Table 4, marked with the “AFQ” mask/fabrication/process code as shown in Figure 1.
Table 4: Spartan-3 XC3S200 FPGAs Affected by the CLK2X Feedback Issue
Device Types: XC3S200
Mask Revision Codes: A only
Fabrication/Process Codes: FQ only
Packages: All
Speed Grades: All
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