?? gal16v8new.pld
字號:
Name gal16v8.pld;
Partno 16v8;
Date 29/11/06;
Revision 01;
Designer Hu qingbo;
Company zju;
Assembly U00;
Location San Jose;
Device g16v8;
/**************************************************************/
/* The 74885 is a 8-bit magnitude comparator which can be */
/* cascaded without other circuitry. The 'P' inputs are */
/* latched into 8 flip-flops to become the 'Q' value. Until */
/* a new value is latched into the 'Q' registers, all values */
/* on the 'P' inputs are compared to the current 'Q' values. */
/* This design also includes an 'Equal' output and input. */
/**************************************************************/
/** Inputs **/
PIN 2 = dint;
PIN 3 = usbint;
PIN 4 = clkint;
PIN 5 = rw;
PIN 6 = is;
PIN 7 = a15;
PIN 8 = a14;
PIN 9 = a13;
/** Outputs **/
PIN 12 = led1;
PIN 13 = lcd1;
PIN 14 = lcd2;
PIN 15 = int;
PIN 17 = io;
PIN 18 = usb1;
PIN 19 = usb2led2;
/** Logic Equations **/
led1= rw # is # (!a15) # a14 # a13; // 8000h
lcd1= rw # is # a15 # (!a14) # a13; //4000h
lcd2= rw # is # (!a15) # (!a14) # a13; //c000h
int= !((!dint) # (!usbint) # (!clkint));
io = rw # is # a15 # a14 # (!a13); //2000h
usb1 = rw # is # (!a15) # a14 # (!a13); //a000h
usb2led2 = rw # is # a15 # (!a14) # (!a13); //6000h
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