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/* * Description of Z8530 Z85C30 and Z85230 communications chips * * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) * Copyright (C) 1998 Alan Cox */ #ifndef _Z8530

/* * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2

/* 8530 Serial Communications Controller Register definitions */ #define FLAG 0x7e /* Write Register 0 */ #define R0 0 /* Register selects */ #define R1 1 #define R2 2 #define R3 3 #define R4 4 #de

function Z=H_to_Z(H); dim=size(H); Z=zeros(dim); if(length(dim)

function S=Z_to_S(z_param,Z0); dim=size(z_param); S=zeros(dim); if(length(dim)

function ABCD=Z_to_ABCD(Z); dim=size(Z); ABCD=zeros(dim); if(length(dim)

function Y=Z_to_Y(Z); z11=Z(:,1,1); z12=Z(:,1,2); z21=Z(:,2,1); z22=Z(:,2,2); y11=z22; y12=-z12; y21=-z21; y22=z11; Y=[y11,y12;y21,y22]/det(Z);

function Z=ABCD_to_Z(abcd_param); dim=size(abcd_param); Z=zeros(dim); if(length(dim)

function Z=S_to_Z(s_param,Z0); s11=s_param(1,1); s12=s_param(1,2); s21=s_param(2,1); s22=s_param(2,2); delta=(1-s11)*(1-s22)-s12*s21; z11=((1+s11)*(1-s22)+s12*s21)/delta; z12=2*s12/delta;

function Z=Y_to_Z(Y); y11=Y(1,1); y12=Y(1,2); y21=Y(2,1); y22=Y(2,2); z11=y22; z12=-y12; z21=-y21; z22=y11; Z=[z11,z12;z21,z22]/det(Y);