membus.h

/*! \file membus.h \brief Memory Bus Driver for ADuC7026. */
//*****************************************************************************
//
// File Name    : 'membus.h'
// Title        : Memory Bus Driver for ADuC7026
// Author       : Pascal Stang - Copyright (C) 2005
// Created      : 2005.02.14
// Revised      : 2005.02.14
// Version      : 0.1
// Target MCU   : Analog Devices ADuC7026 ARM Series
// Editor Tabs  : 4
//
// NOTE: This code is currently below version 1.0, and therefore is considered
// to be lacking in some functionality or documentation, or may not be fully
// tested.  Nonetheless, you can expect most functions to work.
//
// This code is distributed under the GNU Public License
//      which can be found at http://www.gnu.org/licenses/gpl.txt
//
//*****************************************************************************

#ifndef MEMBUS_H
#define MEMBUS_H

#include "global.h"

// defines
#define XMCON_16BIT         (1<<1)
#define XMCON_ENABLE        (1<<0)

#define XMPAR_BWS           (1<<15)
#define XMPAR_AE_WS2        (1<<14)
#define XMPAR_AE_WS1        (1<<13)
#define XMPAR_AE_WS0        (1<<12)
#define XMPAR_16BITADDR     (1<<11)
#define XMPAR_EXTRAHOLD     (1<<10)
#define XMPAR_EXTRAREAD     (1<<9)
#define XMPAR_EXTRAWRITE    (1<<8)
#define XMPAR_WR_WS3        (1<<7)
#define XMPAR_WR_WS2        (1<<6)
#define XMPAR_WR_WS1        (1<<5)
#define XMPAR_WR_WS0        (1<<4)
#define XMPAR_RD_WS3        (1<<3)
#define XMPAR_RD_WS2        (1<<2)
#define XMPAR_RD_WS1        (1<<1)
#define XMPAR_RD_WS0        (1<<0)

// memory bank addresses
#define XM_ADDR_MEMORY0     0x10000000l
#define XM_ADDR_MEMORY1     0x20000000l
#define XM_ADDR_MEMORY2     0x30000000l
#define XM_ADDR_MEMORY3     0x40000000l

// functions
void membusInit(void);
uint16_t membusRead(uint32_t addr);
void membusWrite(uint32_t addr, uint16_t data);

#endif

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