Zilog EZ80190 Uživatelský manuál stáhnout pdf (Strana 80)

eZ80190 Development Kit

User Manual

UM014108-0810 General Array Logic Equations

76

//input[7:0] A;upper part of Address Bus of 190

//A23=A7,A22=A6,A21=A5,A20=A4,A19=A3

//A18=A2,A17=A1,A16=A0

output

nCS_EX /* synthesis loc="P17"*/,//enables

memory on the

// Expansion Module

nmemen1 /* synthesis loc="P18"*/,//enables

memory on

// the Development Platform

nmemen2 /* synthesis loc="P19"*/,

nmemen3 /* synthesis loc="P20"*/,

nmemen4 /* synthesis loc="P21"*/,

nEM_EN /* synthesis loc="P24"*/,//enables

LED and the

// general-purpose port.

nDIS_FL /* synthesis loc="P25"*/,

nL_RD /* synthesis loc="P23"*/

;

wire nCS_EX,

nmemen1,

nmemen2,

nmemen3,

nmemen4;

//wire MOD_DIS =

((nmemen1==0)|(nmemen2==0)|(nmemen3==0)|(nmemen4==0)

);//if any

//of the signals is Low,

1 2 ... 75 76 77 78 79 80 81 82 83 84 85 86 87

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