
LatticeECP/EC and LatticeXP
Lattice Semiconductor
sysIO Usage Guide
8-16
OPENDRAIN
--***Attribute Declaration***
ATTRIBUTE OPENDRAIN: string;
--***DRIVE assignment for I/O Pin***
ATTRIBUTE OPENDRAIN OF portB: SIGNAL IS "ON";
DRIVE
--***Attribute Declaration***
ATTRIBUTE DRIVE: string;
--***DRIVE assignment for I/O Pin***
ATTRIBUTE DRIVE OF portB: SIGNAL IS “20”;
PULLMODE
--***Attribute Declaration***
ATTRIBUTE PULLMODE : string;
--***PULLMODE assignment for I/O Pin***
ATTRIBUTE PULLMODE OF portA:
SIGNAL IS "DOWN";
ATTRIBUTE PULLMODE OF portB:
SIGNAL IS "UP";
PCICLAMP
--***Attribute Declaration***
ATTRIBUTE PCICLAMP: string;
--***PULLMODE assignment for I/O Pin***
ATTRIBUTE PCICLAMP OF portA:
SIGNAL IS "ON";
SLEWRATE
--***Attribute Declaration***
ATTRIBUTE SLEWRATE : string;
--*** SLEWRATE assignment for I/O Pin***
ATTRIBUTE SLEWRATE OF portB: SIGNAL IS “FAST”;
FIXEDDELAY
--***Attribute Declaration***
ATTRIBUTE FIXEDDELAY: string;
--*** SLEWRATE assignment for I/O Pin***
ATTRIBUTE FIXEDDELAY OF portB: SIGNAL IS “TRUE”;