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io8535.h

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/*            - io8535.h -

   This file #defines the internal register addresses for AT90S8535.
*/

#ifndef __IO8535
#define __IO8535 1


/*==========================*/
/* Predefined SFR Addresses */
/*==========================*/

/* ADC Data register */
#define ADCL       0x04 
#define ADCH       0x05 

/* ADC Control and Status Register */
#define ADCSR      0x06 

/* ADC MUX */
#define ADMUX      0x07 

/* Analog Comparator Control and Status Register */
#define ACSR            0x08 

/* UART Baud Rate Register */
#define UBRR        0x09 

/* UART Control Register */
#define UCR        0x0A 

/* UART Status Register */
#define USR        0x0B 

/* UART I/O Data Register */
#define UDR        0x0C 

/* SPI Control Register */
#define SPCR        0x0D 

/* SPI Status Register */
#define SPSR        0x0E 

/* SPI I/O Data Register */
#define SPDR        0x0F 

/* Input Pins, Port D */
#define PIND        0x10 

/* Data Direction Register, Port D */
#define DDRD        0x11 

/* Data Register, Port D */
#define PORTD        0x12 

/* Input Pins, Port C */
#define PINC        0x13 

/* Data Direction Register, Port C */
#define DDRC        0x14 

/* Data Register, Port C */
#define PORTC        0x15 

/* Input Pins, Port B */
#define PINB        0x16 

/* Data Direction Register, Port B */
#define DDRB        0x17 

/* Data Register, Port B */
#define PORTB        0x18 

/* Input Pins, Port A */
#define PINA        0x19 

/* Data Direction Register, Port A */
#define DDRA        0x1A 

/* Data Register, Port A */
#define PORTA        0x1B 

/* EEPROM Control Register */
#define EECR        0x1C 

/* EEPROM Data Register */
#define EEDR        0x1D 

/* EEPROM Address Register */
#define EEARL       0x1E 
#define EEARH       0x1F 

/* Watchdog Timer Control Register */
#define WDTCR        0x21 

/* Asynchronous mode Status Register */
#define ASSR        0x22 

/* Timer/Counter2 Output Compare Register */
#define OCR2        0x23 

/* Timer/Counter 2 */
#define TCNT2        0x24 

/* Timer/Counter 2 Control Register */
#define TCCR2        0x25 

/* T/C 1 Input Capture Register */
#define ICR1L       0x26 
#define ICR1H       0x27 

/* Timer/Counter1 Output Compare Register B */
#define OCR1BL       0x28 
#define OCR1BH       0x29 

/* Timer/Counter1 Output Compare Register A */
#define OCR1AL       0x2A 
#define OCR1AH       0x2B 

/* Timer/Counter 1 */
#define TCNT1L       0x2C 
#define TCNT1H       0x2D 

/* Timer/Counter 1 Control and Status Register */
#define TCCR1B        0x2E 

/* Timer/Counter 1 Control Register */
#define TCCR1A        0x2F 

/* Timer/Counter 0 */
#define TCNT0        0x32 

/* Timer/Counter 0 Control Register */
#define TCCR0        0x33 

/* MCU general Status Register */
#define MCUSR        0x34 

/* MCU general Control Register */
#define MCUCR        0x35 

/* Timer/Counter Interrupt Flag register */
#define TIFR        0x38 

/* Timer/Counter Interrupt MaSK register */
#define TIMSK        0x39 

/* General Interrupt Flag Register */
#define GIFR         0x3A 

/* General Interrupt MaSK register */
#define GIMSK        0x3B 
 
/* Stack Pointer */
#define SPL          0x3D 
#define SPH          0x3E 

/* Status REGister */
#define SREG        0x3F 


/*                              */
/* Interrupt Vector Definitions */
/*                              */

/* NB! vectors are specified as byte addresses */

#define    RESET_vect           (0x00)
#define    INT0_vect            (0x02)
#define    INT1_vect            (0x04)
#define    TIMER2_COMP_vect     (0x06)
#define    TIMER2_OVF_vect      (0x08)
#define    TIMER1_CAPT_vect    (0x0A)
#define    TIMER1_COMPA_vect    (0x0C)
#define    TIMER1_COMPB_vect    (0x0E)
#define    TIMER1_OVF_vect     (0x10)
#define    TIMER0_OVF_vect     (0x12)
#define    SPI_STC_vect         (0x14)
#define    UART_RX_vect         (0x16)
#define    UART_UDRE_vect       (0x18)
#define    UART_TX_vect         (0x1A)
#define    ADC_vect             (0x1C)
#define    EE_RDY_vect          (0x1E)
#define    ANA_COMP_vect        (0x20)

#define INT_VECT_SIZE (0x22)

/*
   The Register Bit names are represented by their bit number (0-7).
*/    
 
/* MCU general Status Register */    
#define    EXTRF       1
#define    PORF        0
 
/* General Interrupt MaSK register */
#define    INT1        7
#define    INT0        6
 
/* General Interrupt Flag Register */
#define    INTF1       7
#define    INTF0       6                   
 
/* Timer/Counter Interrupt MaSK register */
#define    OCIE2       7 
#define    TOIE2       6 
#define    TICIE1      5
#define    OCIE1A      4
#define    OCIE1B      3
#define    TOIE1       2
#define    TOIE0       0
 
/* Timer/Counter Interrupt Flag register */
#define    OCF2         7
#define    TOV2         6
#define    ICF1         5
#define    OCF1A        4
#define    OCF1B        3
#define    TOV1         2
#define    TOV0         0
 
/* MCU general Control Register */ 
#define    SE           6
#define    SM1          5
#define    SM0          4
#define    ISC11        3
#define    ISC10        2
#define    ISC01        1
#define    ISC00        0
 
/* Timer/Counter 0 Control Register */
#define    CS02         2
#define    CS01         1
#define    CS00         0
 
/* Timer/Counter 1 Control Register */
#define    COM1A1       7
#define    COM1A0       6
#define    COM1B1       5
#define    COM1B0       4
#define    PWM11        1
#define    PWM10        0
 
/* Timer/Counter 1 Control and Status Register */
#define    ICNC1        7
#define    ICES1        6
#define    CTC1         3
#define    CS12         2
#define    CS11         1
#define    CS10         0
 
/* Timer/Counter 2 Control Register */
#define    PWM2         6
#define    COM21        5
#define    COM20        4
#define    CTC2         3
#define    CS22         2
#define    CS21         1
#define    CS20         0

/* Asynchronous mode Status Register */
#define    AS2          3
#define    TCN2UB       2
#define    OCR2UB       1
#define    TCR2UB       0
                        
/* Watchdog Timer Control Register */                         
#define    WDTOE        4
#define    WDE          3
#define    WDP2         2
#define    WDP1         1
#define    WDP0         0    
 
/* EEPROM Control Register */
#define    EERIE        3
#define    EEMWE        2
#define    EEWE         1
#define    EERE         0
 
/* Data Register, Port A */ 
#define    PA7      7
#define    PA6      6
#define    PA5      5
#define    PA4      4
#define    PA3      3
#define    PA2      2
#define    PA1      1
#define    PA0      0
                                     
/* Data Direction Register, Port A */
#define    DDA7     7
#define    DDA6     6
#define    DDA5     5
#define    DDA4     4
#define    DDA3     3
#define    DDA2     2
#define    DDA1     1
#define    DDA0     0
 
/* Input Pins, Port A */
#define    PINA7    7
#define    PINA6    6
#define    PINA5    5
#define    PINA4    4
#define    PINA3    3
#define    PINA2    2
#define    PINA1    1
#define    PINA0    0
 
/* Data Register, Port B */  
#define    PB7      7
#define    PB6      6
#define    PB5      5
#define    PB4      4
#define    PB3      3
#define    PB2      2
#define    PB1      1
#define    PB0      0
 
/* Data Direction Register, Port B */
#define    DDB7     7
#define    DDB6     6
#define    DDB5     5
#define    DDB4     4
#define    DDB3     3
#define    DDB2     2
#define    DDB1     1
#define    DDB0     0
 
/* Input Pins, Port B */
#define    PINB7    7
#define    PINB6    6
#define    PINB5    5
#define    PINB4    4
#define    PINB3    3
#define    PINB2    2
#define    PINB1    1
#define    PINB0    0
 
/* Data Register, Port C */
#define    PC7      7
#define    PC6      6
#define    PC5      5
#define    PC4      4
#define    PC3      3
#define    PC2      2
#define    PC1      1
#define    PC0      0
 
/* Data Direction Register, Port C */
#define    DDC7     7
#define    DDC6     6
#define    DDC5     5
#define    DDC4     4
#define    DDC3     3
#define    DDC2     2
#define    DDC1     1
#define    DDC0     0
 
/* Input Pins, Port C */
#define    PINC7    7
#define    PINC6    6
#define    PINC5    5
#define    PINC4    4
#define    PINC3    3
#define    PINC2    2
#define    PINC1    1
#define    PINC0    0
 
/* Data Register, Port D */
#define    PD7      7
#define    PD6      6
#define    PD5      5
#define    PD4      4
#define    PD3      3
#define    PD2      2
#define    PD1      1
#define    PD0      0
 
/* Data Direction Register, Port D */
#define    DDD7     7
#define    DDD6     6
#define    DDD5     5
#define    DDD4     4
#define    DDD3     3
#define    DDD2     2
#define    DDD1     1
#define    DDD0     0
 
/* Input Pins, Port D */
#define    PIND7     7
#define    PIND6     6
#define    PIND5     5
#define    PIND4     4
#define    PIND3     3
#define    PIND2     2
#define    PIND1     1
#define    PIND0     0
 
/* SPI Control Register */
#define    SPIE     7
#define    SPE     6
#define    DORD     5
#define    MSTR     4
#define    CPOL     3
#define    CPHA     2
#define    SPR1     1
#define    SPR0     0

/* SPI Status Register */
#define    SPIF     7
#define    WCOL     6
 
/* UART Status Register */
#define    RXC      7
#define    TXC      6
#define    UDRE     5
#define    FE       4
#define    OVR      3    /*This definition differs from the databook    */
                        /*definition to avoid problems with the OR instruction */

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

/* Analog Comparator Control and Status Register */
#define    ACD      7
#define    ACO      5
#define    ACI      4
#define    ACIE     3
#define    ACIC     2
#define    ACIS1    1
#define    ACIS0    0

/* ADC MUX */
#define    MUX2     2
#define    MUX1     1
#define    MUX0     0

/* ADC Control and Status Register */
#define    ADEN     7
#define    ADSC     6
#define    ADFR     5
#define    ADIF     4
#define    ADIE     3
#define    ADPS2    2
#define    ADPS1    1
#define    ADPS0    0  

/* Pointer definition   */
#define    XL     r26
#define    XH     r27
#define    YL     r28
#define    YH     r29
#define    ZL     r30
#define    ZH     r31

/* Constants */
#define    RAMEND   0x25F    /*Last On-Chip SRAM location*/
#define    XRAMEND  0x25F
#define    E2END    0x1FF
#define    FLASHEND 0x1FFF

#endif

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