io_74xx573.h

/* ########################################################################
 
   PICSimLab - Programmable IC Simulator Laboratory
 
   ########################################################################
 
   Copyright (c) : 2021-2024  Luis Claudio Gambôa Lopes <lcgamboa@yahoo.com>
 
   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, or (at your option)
   any later version.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
   For e-mail suggestions :  lcgamboa@yahoo.com
   ######################################################################## */
 
#ifndef IO_74XX573
#define IO_74XX573
 
/*
 pinout
1  /OE
2  D0
3  D1
4  D2
5  D3
6  D4
7  D5
8  D6
9  D7
10 GND
11 LE
12 O7
12 O6
14 O5
15 O4
16 O3
17 O2
18 O1
19 O0
20 VCC
*/
 
typedef struct {
    unsigned char latch;
} io_74xx573_t;
 
void io_74xx573_rst(io_74xx573_t* lt);
void io_74xx573_init(io_74xx573_t* lt);
 
unsigned char io_74xx573_io(io_74xx573_t* lt, const unsigned char le, const unsigned char in);
 
#endif  // IO_74XX573