source: rtems/cpukit/score/cpu/avr/avr/iotn24.h @ b10825c

/**
 * @file avr/iotn24.h
 *
 * @brief Definitions for ATtiny24
 */

/*
 * Copyright (c) 2005 Anatoly Sokolov
 * All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 *  * Neither the name of the copyright holders nor the names of
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _AVR_IOTN24_H_
#define _AVR_IOTN24_H_ 1

/**
 *  @defgroup Avr_iotn24 ATtiny24 Definitions
 *
 *  @ingroup avr
 */
/**@{*/

#include <avr/iotnx4.h>

#define SPM_PAGESIZE 32
#define RAMEND       0xDF
#define XRAMEND      RAMEND
#define E2END        0x7F
#define E2PAGESIZE   4
#define FLASHEND     0x7FF


/* Fuses */

#define FUSE_MEMORY_SIZE 3

/* Low Fuse Byte */
#define FUSE_CKSEL0      (unsigned char)~_BV(0)
#define FUSE_CKSEL1      (unsigned char)~_BV(1)
#define FUSE_CKSEL2      (unsigned char)~_BV(2)
#define FUSE_CKSEL3      (unsigned char)~_BV(3)
#define FUSE_SUT0        (unsigned char)~_BV(4)
#define FUSE_SUT1        (unsigned char)~_BV(5)
#define FUSE_CKOUT       (unsigned char)~_BV(6)
#define FUSE_CKDIV8      (unsigned char)~_BV(7)
#define LFUSE_DEFAULT (FUSE_CKSEL0 & FUSE_CKSEL2 & FUSE_CKSEL3 & FUSE_SUT0 & FUSE_CKDIV8)

/* High Fuse Byte */
#define FUSE_BODLEVEL0   (unsigned char)~_BV(0)
#define FUSE_BODLEVEL1   (unsigned char)~_BV(1)
#define FUSE_BODLEVEL2   (unsigned char)~_BV(2)
#define FUSE_EESAVE      (unsigned char)~_BV(3)
#define FUSE_WDTON       (unsigned char)~_BV(4)
#define FUSE_SPIEN       (unsigned char)~_BV(5)
#define FUSE_DWEN        (unsigned char)~_BV(6)
#define FUSE_RSTDISBL    (unsigned char)~_BV(7)
#define HFUSE_DEFAULT (FUSE_SPIEN)

/* Extended Fuse Byte */
#define FUSE_SELFPRGEN   (unsigned char)~_BV(0)
#define EFUSE_DEFAULT (0xFF)


/* Lock Bits */
#define __LOCK_BITS_EXIST


/* Signature */
#define SIGNATURE_0 0x1E
#define SIGNATURE_1 0x91
#define SIGNATURE_2 0x0B


/**@}*/
#endif /* _AVR_IOTN24_H_ */