Xilinx 8.2i manual DriveDone, Encrypt, Gclkdel0, Gclkdel1, Gclkdel2, Gclkdel3, GSRcycle

Models: 8.2i

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Chapter 14: BitGen

R

DriveDone

This option actively drives the DONE Pin high as opposed to using a pullup.

Architectures:

Virtex, Virtex-E, Virtex-II, Virtex-II Pro, Virtex-4,

 

Spartan-II, Spartan-IIE, Spartan-3, Spartan-3E

Settings:

No, Yes

Default:

No

Encrypt

Encrypts the bitstream.

Architectures:

Virtex-II, Virtex-II Pro, Virtex-4,

Settings:

No, Yes

Default:

No

Note: For more information on encryption, see the following web site:

http://www.xilinx.com/products

Gclkdel0, Gclkdel1, Gclkdel2, Gclkdel3

Use these options to add delays to the global clocks. Do not use these options unless instructed to do so by Xilinx.

Architectures: Virtex/-E/, Spartan-II/-IIE

Settings:

11111, binary string

Default: 11111

GSR_cycle

Selects the Startup phase that releases the internal set-reset to the latches, flip-flops, and BRAM output latches. The Done setting releases GSR when the DoneIn signal is High. DoneIn is either the value of the Done pin or a delayed version if DonePipe=Yes.

Architectures: Virtex/-E, Spartan-II/-IIE

Settings:

Done, 1, 2, 3, 4, 5, 6, Keep

Default: 6

Keep should only be used when partial reconfiguration is going to be implemented. Keep prevents the configuration state machine from asserting control signals that could cause the loss of data.

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Development System Reference Guide

Page 266
Image 266
Xilinx 8.2i manual DriveDone, Encrypt, Gclkdel0, Gclkdel1, Gclkdel2, Gclkdel3, GSRcycle, 11111, binary string