test.sym

SDRAM读写控制的实现与Modelsim仿真

VERSION 5
BEGIN SYMBOL test
SYMBOLTYPE BLOCK
TIMESTAMP 2006 10 23 4 28 22
SYMATTR VeriModel "test"
SYMPIN 0 -608 Input clk
SYMPIN 0 -32 Input rst
SYMPIN 384 -608 Output sdclk
SYMPIN 384 -544 Output cke
SYMPIN 384 -480 Output cs_n
SYMPIN 384 -416 Output ras_n
SYMPIN 384 -352 Output cas_n
SYMPIN 384 -288 Output we_n
SYMPIN 384 -224 Output addr(11:0)
SYMPIN 384 -160 Output ba(1:0)
SYMPIN 384 -96 Output dqm(1:0)
SYMPIN 384 -32 BiDirectional data(15:0)
RECTANGLE N 64 -640 320 0 
BEGIN DISPLAY 192 -648 ATTR SymbolName
    ALIGNMENT BCENTER
    FONT 56 "Arial"
END DISPLAY
BEGIN DISPLAY 72 -608 PIN clk ATTR PinName
    FONT 24 "Arial"
END DISPLAY
LINE N 64 -608 0 -608 
BEGIN DISPLAY 72 -32 PIN rst ATTR PinName
    FONT 24 "Arial"
END DISPLAY
LINE N 64 -32 0 -32 
BEGIN DISPLAY 312 -608 PIN sdclk ATTR PinName
    ALIGNMENT RIGHT
    FONT 24 "Arial"
END DISPLAY
LINE N 320 -608 384 -608 
BEGIN DISPLAY 312 -544 PIN cke ATTR PinName
    ALIGNMENT RIGHT
    FONT 24 "Arial"
END DISPLAY
LINE N 320 -544 384 -544 
BEGIN DISPLAY 312 -480 PIN cs_n ATTR PinName
    ALIGNMENT RIGHT
    FONT 24 "Arial"
END DISPLAY
LINE N 320 -480 384 -480 
BEGIN DISPLAY 312 -416 PIN ras_n ATTR PinName
    ALIGNMENT RIGHT
    FONT 24 "Arial"
END DISPLAY
LINE N 320 -416 384 -416 
BEGIN DISPLAY 312 -352 PIN cas_n ATTR PinName
    ALIGNMENT RIGHT
    FONT 24 "Arial"
END DISPLAY
LINE N 320 -352 384 -352 
BEGIN DISPLAY 312 -288 PIN we_n ATTR PinName
    ALIGNMENT RIGHT
    FONT 24 "Arial"
END DISPLAY
LINE N 320 -288 384 -288 
BEGIN DISPLAY 312 -224 PIN addr(11:0) ATTR PinName
    ALIGNMENT RIGHT
    FONT 24 "Arial"
END DISPLAY
RECTANGLE N 320 -236 384 -212 
LINE N 320 -224 384 -224 
BEGIN DISPLAY 312 -160 PIN ba(1:0) ATTR PinName
    ALIGNMENT RIGHT
    FONT 24 "Arial"
END DISPLAY
RECTANGLE N 320 -172 384 -148 
LINE N 320 -160 384 -160 
BEGIN DISPLAY 312 -96 PIN dqm(1:0) ATTR PinName
    ALIGNMENT RIGHT
    FONT 24 "Arial"
END DISPLAY
RECTANGLE N 320 -108 384 -84 
LINE N 320 -96 384 -96 
BEGIN DISPLAY 312 -32 PIN data(15:0) ATTR PinName
    ALIGNMENT RIGHT
    FONT 24 "Arial"
END DISPLAY
RECTANGLE N 320 -44 384 -20 
LINE N 320 -32 384 -32 
END SYMBOL