clocktop.sym

一个在Xilinx spartan3实现的时钟

VERSION 5
BEGIN SYMBOL clocktop
SYMBOLTYPE BLOCK
TIMESTAMP 2007 7 24 13 19 51
SYMATTR VeriModel "clocktop"
SYMPIN 0 -288 Input clk
SYMPIN 0 -224 Input b1
SYMPIN 0 -160 Input b2
SYMPIN 0 -96 Input b3
SYMPIN 0 -32 Input b4
SYMPIN 384 -288 Output P(3:0)
SYMPIN 384 -32 Output N(7:0)
BEGIN DISPLAY 192 -328 ATTR SymbolName
    ALIGNMENT BCENTER
    FONT 56 "Arial"
END DISPLAY
BEGIN DISPLAY 72 -288 PIN clk ATTR PinName
    FONT 24 "Arial"
END DISPLAY
BEGIN DISPLAY 72 -224 PIN b1 ATTR PinName
    FONT 24 "Arial"
END DISPLAY
BEGIN DISPLAY 72 -160 PIN b2 ATTR PinName
    FONT 24 "Arial"
END DISPLAY
BEGIN DISPLAY 72 -96 PIN b3 ATTR PinName
    FONT 24 "Arial"
END DISPLAY
BEGIN DISPLAY 72 -32 PIN b4 ATTR PinName
    FONT 24 "Arial"
END DISPLAY
BEGIN DISPLAY 312 -288 PIN P(3:0) ATTR PinName
    ALIGNMENT RIGHT
    FONT 24 "Arial"
END DISPLAY
BEGIN DISPLAY 312 -32 PIN N(7:0) ATTR PinName
    ALIGNMENT RIGHT
    FONT 24 "Arial"
END DISPLAY
RECTANGLE N 64 -320 320 0 
LINE N 64 -288 0 -288 
LINE N 64 -224 0 -224 
LINE N 64 -160 0 -160 
LINE N 64 -96 0 -96 
LINE N 64 -32 0 -32 
RECTANGLE N 320 -300 384 -276 
LINE N 320 -288 384 -288 
RECTANGLE N 320 -44 384 -20 
LINE N 320 -32 384 -32 
END SYMBOL