HC210 datasheet(113/228 Pages) ALTERA

113 / 228 page

Altera Corporation

5–21

September 2008

Performing ECOs with Change Manager and Chip Planner

A partial list of examples of this type are as follows:

■

I/O creation, deletion, and moves

■

I/O property changes (for example, I/O standards, delay chain

settings, etc.)

■

PLL property changes

■

Connectivity changes between non-LCELL_COMB atoms (for

example, PLL to I/O, DSP to I/O, etc.)

Migrating Changes that must be Implemented Differently

Some changes must be implemented differently on the two architectures.

Changes affecting the logic of the design may fall into this category.

Examples are LUTMASK changes, LC_COMB/HSADDER creation and

deletion, and connectivity changes not covered in the previous section.

Another example of this would be to have different PLL settings for the

Stratix II and the HardCopy II revisions.

For more information about how to use different PLL settings for the

Stratix II and HardCopy II Devices, refer to AN432: Using Different PLL

Settings Between Stratix II and HardCopy II Devices.

Table 5–3 summarizes suggested implementation for various changes.

Table 5–3. Implementation Suggestions for Various Changes (Part 1 of 2)

Change Type

Suggested Implementation

LUTMASK changes

Because a single Stratix II atom may require

multiple HardCopy II atoms to implement, it may be

necessary to change multiple HardCopy II atoms to

implement the change, including adding or

modifying connectivity

Make/Delete LC_COMB

If you are using a Stratix II LC_COMB in extended

mode (7-LUT) or using a SHARE chain, you must

create multiple atoms to implement the same logic

functions in HardCopy II. Additionally, the

placement of the LC_COMB cell has no meaning in

the companion revision as the underlying

resources are different.

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