reglatch.pld

来自「Atmel提供的GAL编译工具,对GAL芯片进行编写,以及可转换成机器码」· PLD 代码 · 共 38 行

Name            Reglatch;
Partno          ;
Revision        01;
Date            8/11/95;
Designer        PLD Expert;
Company         Atmel Corp.;
Location        None;
Assembly        None;
Device          F1500;

/* Example showing register and latch usage */

pin 4 = a;
pin 5 = b;           /* Data Inputs */
pin 2 = g;           /* Latch Enable */
pin 1 = Reset;       /* Reset pin */
pin 43 = Clk;        /* Global clock pin */
pin 33 = ClkEn;      /* Clock Enable */

Property Atmel {preassign keep};

/* Outputs */
pin 41 = OutReg; 
pin = Lat;    

/* equations */

/* Use NodeLatch to latch input data */
  
Lat.l    = a & b;  /* Latch data */
Lat.le   = g;      /* Latch Enable */
 
OutReg.d   = Lat;
OutReg.ck  = Clk;     /* Global Clock pin */
OutReg.ce  = ClkEn;   /* Clock enable */
OutReg.ar  = !Reset;  /* Use Global Reset pin */