/******************************************************************************/
/* Copyright 2004 MBARI - Monterey Bay Aquarium Research Institute            */
/******************************************************************************/
/******************************************************************************/
/* Summary  : Routines to configure and access IO on CPU Port E               */
/* Filename : IO_PORTE.C                                                      */
/* Author   : Luke Coletti                                                    */
/* Project  :                                                                 */
/* Version  : 1.0                                                             */
/* Compiler : Aztec C68k/ROM v5.2D                                            */
/* Created  : 09/23/04                                                        */
/* Archived :                                                                 */
/******************************************************************************/
/* Modification History:                                                      */
/*                                                                            */
/******************************************************************************/
#include        <TT8.h>                 /* Tattletale Model 8 Definitions */
#include        <tt8lib.h>              /* definitions and prototypes for Model 8 library */
#include        <stdio.h>
#include        "lobo.h"

/****************************************************************************/
/* CPU PortE[0.2] used for I2C Link to MBARI designed MODEM interface board */
/* CPU PortE[3]   used for IRQ  from   MBARI designed MODEM interface board */
/* CPU PortE[4.7] used for future expansion board at J9 on LOBO controller  */
/* CPU PortE[0]   = Output = MODEM_I2C_TXD                                  */
/* CPU PortE[1]   = Input  = MODEM_I2C_RXD                                  */
/* CPU PortE[2]   = Output = MODEM_I2C_SCL                                  */
/* CPU PortE[3]   = Input  = MODEM_IRQ_MON                                  */
/* CPU PortE[4.7] = Output = Undefined Use, Set Low                         */
/****************************************************************************/
void InitPortE_IO(void)
{
;
#asm
PORTE1      equ     $FFFA13             ;port E1 data                       r/w
PORTEDDR    equ     $FFFA15             ;port E  data direction             r/w
PORTEPAR    equ     $FFFA17             ;port E  pin assignment             r/w

            clr.b   PORTEPAR            ;PORTE[0.7] to general digital I/O
            clr.b   PORTE1              ;init data reg of PORTE
            move.b  #%11110101,PORTEDDR ;set data direction of PORTE bits

                                        ;return from C function call
#endasm
}

uchar RdPortE(void)
{
#asm
            move.b  PORTE1,d0           ;get port E1 data
                                        ;return from C function call
#endasm
}