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Dot Extensions Used in the Left Hand Side of Equations

Dot
Extension
Function
Description
When Used With
 
Combinatorials Registers
.ACLR Device Independent Asynchronous Reset Illegal Recommended
.AP Asynchronous Preset Illegal Allowed
.AR Asynchronous Reset Illegal Allowed
.ASET Device Independent Asynchronous RSet Illegal Recommended
.CE Clock Enable* Illegal Allowed
.CLK Clock Input Illegal Recommended
.CLR Device Independent Synchronous Reset Illegal Emulated
.D D Flip-Flop** Illegal Allowed
.FC Flip-Flop Mode Control Illegal Illegal
.J J Input to JK Flip-Flop Illegal Emulated
.K K Input to JK Flip-Flop Illegal Emulated
.LD Register Load Input Illegal Illegal
.LE Latch Enable - Active Low Illegal Emulated
.LH Latch Enable - Active High Illegal Emulated
.OE Output Enable*** Recommended Recommended
.PR Register Preset Illegal Allowed
.R R Input to SR Flip-Flop Illegal Emulated
.RE Register Reset Illegal Allowed
.S S Input to SR Flip-Flop Illegal Emulated
.SET Device Independent Synchronous Preset Illegal Emulated
.SP Synchronous Preset Illegal Emulated
.SR Synchronous Reset Illegal Emulated
.T T Input to T Flip-Flop Illegal Recommended
* .CE is emulated for XC9500.
** The recommended syntax for describing register D-inputs is using ":=" notation.
*** .OE is only allowed on chip level pins.