Specifications

158 www.xilinx.com Embedded System Tools Guide (EDK 6.2i)
1-800-255-7778 UG111 (v1.4) January 30, 2004
Chapter 8: Platform Specification Utility
R
x INTR_LEVEL_LOW: indicating it is an Interrupt signal with Level Low Sensitivity
x INTR_EDGE_RISING: indicating it is an Intr signal sensitive on rising edge
x INTR_EDGE_FALLING: indicating it is an Intr signal sensitive on falling edge
x RST: indicating it is a Reset signal
INITIALVAL Attribute
This specifies the Initial Value on a signal if it is unconnected.
Format
entity Peripheral is
port (
M_DBus : in std_logic
);
attribute INITALVAL : string;
attribute INTIALVAL of sig:signal is "VCC";
end entity Peripheral;
BUSIF Attribute
This specifies the bus interface attribute associated with a port. PsfUtility automatically
infers the association for all bus ports provided signal naming convention was followed.
Format
entity Peripheral is
port (
mysig : in std_logic
);
attribute BUSIF : string;
attribute BUSIF of mysig:signal is "SOPB";
end entity Peripheral;
SIGVAL Attribute
This specifies the Connector Name for a signal. PsfUtility automatically infers all
connector names for bus signals.
Format
entity Peripheral is
port (
mysig : in std_logic
);
attribute SIGVAL : string;
attribute SIGVAL of mysig:signal is "conn_sig";
end entity Peripheral;