source: rtems/cpukit/score/cpu/avr/avr/iom323.h @ b10825c

/**
 * @file avr/iom323.h
 *
 * @brief Definitions for ATmega323
 *
 * This file should only be included from <avr/io.h>, never directly.
 */

/*
 *  Copyright (c) 2002 Marek Michalkiewicz
 *  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_IOM323_H_
#define _AVR_IOM323_H_ 1

/**
 *  @defgroup Avr_iom323 ATmega323 Definitions
 *
 *  @ingroup avr
 */
/**@{*/

#ifndef _AVR_IO_H_
#  error "Include <avr/io.h> instead of this file."
#endif

#ifndef _AVR_IOXXX_H_
#  define _AVR_IOXXX_H_ "iom323.h"
#else
#  error "Attempt to include more than one <avr/ioXXX.h> file."
#endif

/* I/O registers */

/* TWI stands for "Two Wire Interface" or "TWI Was I2C(tm)" */
#define TWBR    _SFR_IO8(0x00)
#define TWSR    _SFR_IO8(0x01)
#define TWAR    _SFR_IO8(0x02)
#define TWDR    _SFR_IO8(0x03)

/* ADC */
#ifndef __ASSEMBLER__
#define ADC     _SFR_IO16(0x04)
#endif
#define ADCW    _SFR_IO16(0x04)
#define ADCL    _SFR_IO8(0x04)
#define ADCH    _SFR_IO8(0x05)
#define ADCSR   _SFR_IO8(0x06)
#define ADMUX   _SFR_IO8(0x07)

/* analog comparator */
#define ACSR    _SFR_IO8(0x08)

/* UART */
#define UBRR    _SFR_IO8(0x09)
#define UBRRL   UBRR
#define UCSRB   _SFR_IO8(0x0A)
#define UCSRA   _SFR_IO8(0x0B)
#define UDR     _SFR_IO8(0x0C)

/* SPI */
#define SPCR    _SFR_IO8(0x0D)
#define SPSR    _SFR_IO8(0x0E)
#define SPDR    _SFR_IO8(0x0F)

/* Port D */
#define PIND    _SFR_IO8(0x10)
#define DDRD    _SFR_IO8(0x11)
#define PORTD   _SFR_IO8(0x12)

/* Port C */
#define PINC    _SFR_IO8(0x13)
#define DDRC    _SFR_IO8(0x14)
#define PORTC   _SFR_IO8(0x15)

/* Port B */
#define PINB    _SFR_IO8(0x16)
#define DDRB    _SFR_IO8(0x17)
#define PORTB   _SFR_IO8(0x18)

/* Port A */
#define PINA    _SFR_IO8(0x19)
#define DDRA    _SFR_IO8(0x1A)
#define PORTA   _SFR_IO8(0x1B)

/* EEPROM Control Register */
#define EECR    _SFR_IO8(0x1C)

/* EEPROM Data Register */
#define EEDR    _SFR_IO8(0x1D)

/* EEPROM Address Register */
#define EEAR    _SFR_IO16(0x1E)
#define EEARL   _SFR_IO8(0x1E)
#define EEARH   _SFR_IO8(0x1F)

#define UBRRH   _SFR_IO8(0x20)
#define UCSRC   UBRRH

#define WDTCR   _SFR_IO8(0x21)

#define ASSR    _SFR_IO8(0x22)

/* Timer 2 */
#define OCR2    _SFR_IO8(0x23)
#define TCNT2   _SFR_IO8(0x24)
#define TCCR2   _SFR_IO8(0x25)

/* Timer 1 */
#define ICR1    _SFR_IO16(0x26)
#define ICR1L   _SFR_IO8(0x26)
#define ICR1H   _SFR_IO8(0x27)
#define OCR1B   _SFR_IO16(0x28)
#define OCR1BL  _SFR_IO8(0x28)
#define OCR1BH  _SFR_IO8(0x29)
#define OCR1A   _SFR_IO16(0x2A)
#define OCR1AL  _SFR_IO8(0x2A)
#define OCR1AH  _SFR_IO8(0x2B)
#define TCNT1   _SFR_IO16(0x2C)
#define TCNT1L  _SFR_IO8(0x2C)
#define TCNT1H  _SFR_IO8(0x2D)
#define TCCR1B  _SFR_IO8(0x2E)
#define TCCR1A  _SFR_IO8(0x2F)

#define SFIOR   _SFR_IO8(0x30)

#define OSCCAL  _SFR_IO8(0x31)

/* Timer 0 */
#define TCNT0   _SFR_IO8(0x32)
#define TCCR0   _SFR_IO8(0x33)

#define MCUSR   _SFR_IO8(0x34)
#define MCUCSR  MCUSR
#define MCUCR   _SFR_IO8(0x35)

#define TWCR    _SFR_IO8(0x36)

#define SPMCR   _SFR_IO8(0x37)

#define TIFR    _SFR_IO8(0x38)
#define TIMSK   _SFR_IO8(0x39)

#define GIFR    _SFR_IO8(0x3A)
#define GIMSK   _SFR_IO8(0x3B)
#define GICR    GIMSK

#define OCR0    _SFR_IO8(0x3C)

/* 0x3D..0x3E SP */

/* 0x3F SREG */

/* Interrupt vectors */

/* External Interrupt Request 0 */
#define INT0_vect                       _VECTOR(1)
#define SIG_INTERRUPT0                  _VECTOR(1)

/* External Interrupt Request 1 */
#define INT1_vect                       _VECTOR(2)
#define SIG_INTERRUPT1                  _VECTOR(2)

/* External Interrupt Request 2 */
#define INT2_vect                       _VECTOR(3)
#define SIG_INTERRUPT2                  _VECTOR(3)

/* Timer/Counter2 Compare Match */
#define TIMER2_COMP_vect                _VECTOR(4)
#define SIG_OUTPUT_COMPARE2             _VECTOR(4)

/* Timer/Counter2 Overflow */
#define TIMER2_OVF_vect                 _VECTOR(5)
#define SIG_OVERFLOW2                   _VECTOR(5)

/* Timer/Counter1 Capture Event */
#define TIMER1_CAPT_vect                _VECTOR(6)
#define SIG_INPUT_CAPTURE1              _VECTOR(6)

/* Timer/Counter1 Compare Match A */
#define TIMER1_COMPA_vect               _VECTOR(7)
#define SIG_OUTPUT_COMPARE1A            _VECTOR(7)

/* Timer/Counter1 Compare Match B */
#define TIMER1_COMPB_vect               _VECTOR(8)
#define SIG_OUTPUT_COMPARE1B            _VECTOR(8)

/* Timer/Counter1 Overflow */
#define TIMER1_OVF_vect                 _VECTOR(9)
#define SIG_OVERFLOW1                   _VECTOR(9)

/* Timer/Counter0 Compare Match */
#define TIMER0_COMP_vect                _VECTOR(10)
#define SIG_OUTPUT_COMPARE0             _VECTOR(10)

/* Timer/Counter0 Overflow */
#define TIMER0_OVF_vect                 _VECTOR(11)
#define SIG_OVERFLOW0                   _VECTOR(11)

/* Serial Transfer Complete */
#define SPI_STC_vect                    _VECTOR(12)
#define SIG_SPI                         _VECTOR(12)

/* USART, Rx Complete */
#define USART_RXC_vect                  _VECTOR(13)
#define SIG_UART_RECV                   _VECTOR(13)

/* USART Data Register Empty */
#define USART_UDRE_vect                 _VECTOR(14)
#define SIG_UART_DATA                   _VECTOR(14)

/* USART, Tx Complete */
#define USART_TXC_vect                  _VECTOR(15)
#define SIG_UART_TRANS                  _VECTOR(15)

/* ADC Conversion Complete */
#define ADC_vect                        _VECTOR(16)
#define SIG_ADC                         _VECTOR(16)

/* EEPROM Ready */
#define EE_RDY_vect                     _VECTOR(17)
#define SIG_EEPROM_READY                _VECTOR(17)

/* Analog Comparator */
#define ANA_COMP_vect                   _VECTOR(18)
#define SIG_COMPARATOR                  _VECTOR(18)

/* 2-wire Serial Interface */
#define TWI_vect                        _VECTOR(19)
#define SIG_2WIRE_SERIAL                _VECTOR(19)

/* Store Program Memory Ready */
#define SPM_RDY_vect                    _VECTOR(20)

#define _VECTORS_SIZE 80


/* Bit numbers */

/* GIMSK */
#define INT1    7
#define INT0    6
#define INT2    5
#define IVSEL   1
#define IVCE    0

/* GIFR */
#define INTF1   7
#define INTF0   6
#define INTF2   5

/* TIMSK */
#define OCIE2   7
#define TOIE2   6
#define TICIE1  5
#define OCIE1A  4
#define OCIE1B  3
#define TOIE1   2
#define OCIE0   1
#define TOIE0   0

/* TIFR */
#define OCF2    7
#define TOV2    6
#define ICF1    5
#define OCF1A   4
#define OCF1B   3
#define TOV1    2
#define OCF0    1
#define TOV0    0

/* SPMCR */
#define SPMIE   7
#define ASB     6
/* bit 5 reserved */
#define ASRE    4
#define BLBSET  3
#define PGWRT   2
#define PGERS   1
#define SPMEN   0

/* TWCR */
#define TWINT   7
#define TWEA    6
#define TWSTA   5
#define TWSTO   4
#define TWWC    3
#define TWEN    2
#define TWI_TST 1
#define TWIE    0

/* TWAR */
#define TWGCE   0

/* TWSR */
#define    TWS7         7
#define    TWS6         6
#define    TWS5         5
#define    TWS4         4
#define    TWS3         3
/* bits 2-0 reserved */

/* MCUCR */
/* bit 7 reserved (SM2?) */
#define SE      7
#define SM2     6
#define SM1     5
#define SM0     4
#define ISC11   3
#define ISC10   2
#define ISC01   1
#define ISC00   0

/* MCUCSR */
#define JTD     7
#define ISC2    6
#define EIH     5
#define JTRF    4
#define WDRF    3
#define BORF    2
#define EXTRF   1
#define PORF    0

/* SFIOR */
#define RPDD    7
#define RPDC    6
#define RPDB    5
#define RPDA    4
#define ACME    3
#define PUD     2
#define PSR2    1
#define PSR10   0

/* TCCR0 */
#define FOC0    7
#define PWM0    6
#define COM01   5
#define COM00   4
#define CTC0    3
#define CS02    2
#define CS01    1
#define CS00    0

/* TCCR2 */
#define FOC2    7
#define PWM2    6
#define COM21   5
#define COM20   4
#define CTC2    3
#define CS22    2
#define CS21    1
#define CS20    0

/* ASSR */
/* bits 7-4 reserved */
#define AS2     3
#define TCN2UB  2
#define OCR2UB  1
#define TCR2UB  0

/* TCCR1A */
#define COM1A1  7
#define COM1A0  6
#define COM1B1  5
#define COM1B0  4
#define FOC1A   3
#define FOC1B   2
#define PWM11   1
#define PWM10   0

/* TCCR1B */
#define ICNC1   7
#define ICES1   6
/* bit 5 reserved */
#define CTC11   4
#define CTC10   3
#define CS12    2
#define CS11    1
#define CS10    0

/* WDTCR */
/* bits 7-5 reserved */
#define WDTOE   4
#define WDE     3
#define WDP2    2
#define WDP1    1
#define WDP0    0

/* PA7-PA0 = ADC7-ADC0 */
/* PORTA */
#define PA7     7
#define PA6     6
#define PA5     5
#define PA4     4
#define PA3     3
#define PA2     2
#define PA1     1
#define PA0     0

/* DDRA */
#define DDA7    7
#define DDA6    6
#define DDA5    5
#define DDA4    4
#define DDA3    3
#define DDA2    2
#define DDA1    1
#define DDA0    0

/* PINA */
#define PINA7   7
#define PINA6   6
#define PINA5   5
#define PINA4   4
#define PINA3   3
#define PINA2   2
#define PINA1   1
#define PINA0   0

/*
   PB7 = SCK
   PB6 = MISO
   PB5 = MOSI
   PB4 = SS#
   PB3 = AIN1
   PB2 = AIN0
   PB1 = T1
   PB0 = T0
 */

/* PORTB */
#define PB7     7
#define PB6     6
#define PB5     5
#define PB4     4
#define PB3     3
#define PB2     2
#define PB1     1
#define PB0     0

/* DDRB */
#define DDB7    7
#define DDB6    6
#define DDB5    5
#define DDB4    4
#define DDB3    3
#define DDB2    2
#define DDB1    1
#define DDB0    0

/* PINB */
#define PINB7   7
#define PINB6   6
#define PINB5   5
#define PINB4   4
#define PINB3   3
#define PINB2   2
#define PINB1   1
#define PINB0   0

/*
   PC7 = TOSC2
   PC6 = TOSC1
   PC1 = SDA
   PC0 = SCL
 */
/* PORTC */
#define PC7      7
#define PC6      6
#define PC5      5
#define PC4      4
#define PC3      3
#define PC2      2
#define PC1      1
#define PC0      0

/* DDRC */
#define DDC7    7
#define DDC6    6
#define DDC5    5
#define DDC4    4
#define DDC3    3
#define DDC2    2
#define DDC1    1
#define DDC0    0

/* PINC */
#define PINC7   7
#define PINC6   6
#define PINC5   5
#define PINC4   4
#define PINC3   3
#define PINC2   2
#define PINC1   1
#define PINC0   0

/*
   PD7 = OC2
   PD6 = ICP
   PD5 = OC1A
   PD4 = OC1B
   PD3 = INT1
   PD2 = INT0
   PD1 = TXD
   PD0 = RXD
 */

/* PORTD */
#define PD7      7
#define PD6      6
#define PD5      5
#define PD4      4
#define PD3      3
#define PD2      2
#define PD1      1
#define PD0      0

/* DDRD */
#define DDD7    7
#define DDD6    6
#define DDD5    5
#define DDD4    4
#define DDD3    3
#define DDD2    2
#define DDD1    1
#define DDD0    0

/* PIND */
#define PIND7   7
#define PIND6   6
#define PIND5   5
#define PIND4   4
#define PIND3   3
#define PIND2   2
#define PIND1   1
#define PIND0   0

/*
   PE2 = ALE
   PE1 = OC1B
   PE0 = ICP / INT2
 */

/* SPSR */
#define SPIF    7
#define WCOL    6
#define SPI2X   0

/* SPCR */
#define SPIE    7
#define SPE     6
#define DORD    5
#define MSTR    4
#define CPOL    3
#define CPHA    2
#define SPR1    1
#define SPR0    0

/* UCSRA */
#define RXC     7
#define TXC     6
#define UDRE    5
#define FE      4
#define DOR     3
#define PE      2
#define U2X     1
#define MPCM    0

/* UCSRB */
#define RXCIE   7
#define TXCIE   6
#define UDRIE   5
#define RXEN    4
#define TXEN    3
#define UCSZ2   2
#define CHR9    2
#define RXB8    1
#define TXB8    0

/* UCSRC */
#define URSEL   7
#define UMSEL   6
#define UPM1    5
#define UPM0    4
#define USBS    3
#define UCSZ1   2
#define UCSZ0   1
#define UCPOL   0

/* ACSR */
#define ACD     7
#define AINBG   6
#define ACO     5
#define ACI     4
#define ACIE    3
#define ACIC    2
#define ACIS1   1
#define ACIS0   0

/* ADCSR */
#define ADEN    7
#define ADSC    6
#define ADFR    5
#define ADIF    4
#define ADIE    3
#define ADPS2   2
#define ADPS1   1
#define ADPS0   0

/* ADMUX */
#define REFS1   7
#define REFS0   6
#define ADLAR   5
#define MUX4    4
#define MUX3    3
#define MUX2    2
#define MUX1    1
#define MUX0    0

/* EEPROM Control Register */
#define    EERIE        3
#define    EEMWE        2
#define    EEWE         1
#define    EERE         0

/* Constants */
#define SPM_PAGESIZE 128
#define RAMEND          0x85F
#define XRAMEND         RAMEND
#define E2END           0x3FF
#define E2PAGESIZE  0
#define FLASHEND        0x7FFF


/* Fuses */

#define FUSE_MEMORY_SIZE 2

/* 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_BODEN       (unsigned char)~_BV(6)
#define FUSE_BODLEVEL    (unsigned char)~_BV(7)
#define LFUSE_DEFAULT (FUSE_CKSEL0 & FUSE_CKSEL2 & FUSE_CKSEL3)

/* High Fuse Byte */
#define FUSE_BOOTRST     (unsigned char)~_BV(0)
#define FUSE_BOOTSZ0     (unsigned char)~_BV(1)
#define FUSE_BOOTSZ1     (unsigned char)~_BV(2)
#define FUSE_EESAVE      (unsigned char)~_BV(3)
#define FUSE_SPIEN       (unsigned char)~_BV(5)
#define FUSE_JTAGEN      (unsigned char)~_BV(6)
#define FUSE_OCDEN       (unsigned char)~_BV(7)
#define HFUSE_DEFAULT (FUSE_SPIEN & FUSE_JTAGEN)


/* Lock Bits */
#define __LOCK_BITS_EXIST
#define __BOOT_LOCK_BITS_0_EXIST
#define __BOOT_LOCK_BITS_1_EXIST


/* Signature */
#define SIGNATURE_0 0x1E
#define SIGNATURE_1 0x95
#define SIGNATURE_2 0x01

/**@}*/
#endif /* _AVR_IOM323_H_ */