Zilog EZ80F91 Manuel d'utilisateur télécharger pdf (Page 71)

eZ80F91 Development Kit

User Manual

UM014220-0508 Appendix A—General Array Logic Equations

nCS2,

nEX_FL_DIS, //disables Flash on the expansion

//module, when Low

nEM_EN, //enables Development Platform LED

//and Port A emulation circuit

nDIS_FL, //disables Module Flash when Low

nL_RD, //enables local data bus to be read by CPU

nmemen1,

nmemen2,

nmemen3,

nmemen4

);

input

nFL_DIS /* synthesis loc="P4"*/,

nCS0 /* synthesis loc="P5"*/,

nCS2 /* synthesis loc="P3"*/, //was 23

A7 /* synthesis loc="P6"*/,

A6 /* synthesis loc="P7"*/,

A5 /* synthesis loc="P9"*/,

A4 /* synthesis loc="P10"*/,

A3 /* synthesis loc="P11"*/,

A2 /* synthesis loc="P12"*/,

A1 /* synthesis loc="P13"*/,

A0 /* synthesis loc="P16"*/,

nEX_FL_DIS /* synthesis loc="P2"*/;

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

F92

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

1 2 ... 66 67 68 69 70 71 72 73 74 75 76 77 78

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Zilog EZ80F91 Manuel d'utilisateur Page 71