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Home > AMBA-PV Extension Class > Attributes and methods > ACE snoop response attributes DataTransfer, Error, and WasUnique |
On ACE buses additional snoop response attributes DataTransfer, Error and WasUnique are supported.
When true
the DataTransfer attribute indicates
that the snoop response includes a transfer of data.
The method is_snoop_data_transfer()
returns
the value of the DataTransfer attribute. The method set_snoop_data_transfer()
sets the value of the DataTransfer attribute.
The default value of the DataTransfer attribute is false
.
When true
the Error attribute indicates
that the snooped cache line is in error.
The method is_snoop_error()
returns the
value of the Error attribute. The method set_snoop_error()
sets the value of the Error attribute.
The default value of the Error attribute is false
.
When true
the WasUnique attribute indicates
that the snooped cache line was held in a Unique state before the
snoop process.
The method is_snoop_was_unique()
returns
the value of the snoop response WasUnique attribute. The method set_snoop_was_unique()
sets the value of the WasUnique attribute.
The default value of the WasUnique attribute is false
.