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io76c711.h

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/*
   io76c711.h - internal register definitions for AT76C711

   Contributors:
     Created by Marek Michalkiewicz <marekm@linux.org.pl>

   THIS SOFTWARE IS NOT COPYRIGHTED

   This source code is offered for use in the public domain.  You may
   use, modify or distribute it freely.

   This code is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY.  ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
   DISCLAIMED.  This includes but is not limited to warranties of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

   Based on (advance information?) Atmel datasheet Rev. 1643A-10/00.
 */

#ifndef __IO76C711
#define __IO76C711 1

#define AVR_MEGA 1
#define AVR_ENHANCED 1

/* I/O space addresses */

/* 0x00-0x0C reserved */

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

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

/* Peripheral Enable Register */
#define PERIPHEN 0x13

/* Clock Control Register */
#define CLK_CNTR 0x14

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

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

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

/* 0x1C-0x1F reserved */

#define IRDAMOD 0x20

#define WDTCR   0x21

/* 0x22-0x25 reserved */
/* Timer 1 */
#define ICR1L   0x26
#define ICR1H   0x27
#define OCR1BL  0x28
#define OCR1BH  0x29
#define OCR1AL  0x2A
#define OCR1AH  0x2B
#define TCNT1L  0x2C
#define TCNT1H  0x2D
#define TCCR1B  0x2E
#define TCCR1A  0x2F

/* 0x30 reserved */

/* Timer 0 */
#define PRELD   0x31
#define TCNT0   0x32
#define TCCR0   0x33

#define MCUSR   0x34
#define MCUCR   0x35

#define TIFR    0x36
#define TIMSK   0x37

/* 0x38 reserved */

#define EIMSK   0x39

/* 0x3A-0x3C reserved */

#define SPL     0x3D
#define SPH     0x3E
#define SREG    0x3F


/* Interrupt vectors (byte addresses) */
/* XXX - the datasheet shows each vector as using one word of program
   memory, which only allows RJMP, even though the thing has 16K bytes
   of program memory so each vector should be a JMP instruction to reach
   the entire program memory address space.
   Assuming JMP for now - could be wrong, ask Atmel to be sure...  */

#define RESET_vect              (0x00)
#define SUSP_RESM_vect          (0x04)
#define INT0_vect               (0x08)
#define TIMER1_CAPT_vect        (0x0C)
#define TIMER1_COMPA_vect       (0x10)
#define TIMER1_COMPB_vect       (0x14)
#define TIMER1_OVF_vect         (0x18)
#define TIMER0_OVF_vect         (0x1C)
#define SPI_STC_vect            (0x20)
#define TDMAC_vect              (0x24)
#define UART0_vect              (0x28)
#define RDMAC_vect              (0x2C)
#define USB_HW_vect             (0x30)
#define UART1_vect              (0x34)
#define INT1_vect               (0x38)

#define INT_VECT_SIZE (0x3C)

/* Bit numbers */

/* EIMSK */
/* bits 7-4 reserved */
#define POL1    3
#define POL0    2
#define INT1    1
#define INT0    0

/* TIMSK */
#define TOIE1   7
#define OCIE1A  6
#define OCIE1B  5
/* bit 4 reserved */
#define TICIE1  3
/* bit 2 reserved */
#define TOIE0   1
/* bit 0 reserved */

/* TIFR */
#define TOV1    7
#define OCF1A   6
#define OCF1B   5
/* bit 4 reserved */
#define ICF1    3
/* bit 2 reserved */
#define TOV0    1
/* bit 0 reserved */

/* MCUCR */
/* bits 7-6 reserved */
#define SE      5
#define SM1     4
#define SM0     3
/* bits 2-0 reserved */

/* MCUSR */
/* bits 7-2 reserved */
#define EXTRF   1
#define PORF    0

/* TCCR0 */
/* bits 7-6 reserved */
#define COM01   5
#define COM00   4
#define CTC0    3
#define CS02    2
#define CS01    1
#define CS00    0

/* TCCR1A */
#define COM1A1  7
#define COM1A0  6
#define COM1B1  5
#define COM1B0  4
/* bits 3-0 reserved */

/* TCCR1B */
#define ICNC1   7
#define ICES1   6
/* bits 5-4 reserved */
#define CTC1    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

/* IRDAMOD */
/* bits 7-3 reserved */
#define POL     2
#define MODE    1
#define EN      0

/* 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#
   PB2 = ICP
   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

/* PORTC */
/* bits 7-4 reserved */
#define PC3      3
#define PC2      2
#define PC1      1
#define PC0      0

/*
   PD7 = INT1 / OC1B
   PD6 = INT0 / OC1A
   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

/* CLK_CNTR */
/* bits 7-5 reserved */
#define UOSC    4
#define UCK     3
#define IRCK    2
/* bits 1-0 reserved */

/* PERIPHEN */
/* bits 7-3 reserved */
#define IRDA    2
#define UART    1
#define USB     0

/* SPSR */
#define SPIF    7
#define WCOL    6
/* bits 5-0 reserved */

/* 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

/* Memory mapped registers */

/* UART */
#define UART0_BASE 0x2020
#define UART1_BASE 0x2030
/* offsets from the base address */
#define US_RHR          0x00
#define US_THR          0x00
#define US_IER          0x01
#define US_FCR          0x02
#define US_PMR          0x03
#define US_MR           0x04
#define US_CSR          0x05
#define US_CR           0x06
#define US_BL           0x07
#define US_BM           0x08
#define US_RTO          0x09
#define US_TTG          0x0A

/* DMA */
#define DMA_BASE 0x2000
/* offsets from the base address */
#define TXTADL          0x01
#define TXPLL           0x03
#define TXPLM           0x04
#define TXTPLL          0x05
#define TXTPLM          0x06
#define RXTADL          0x07
#define RXTADMEN        0x08
#define RSPLL           0x09
#define RXPLM           0x0A
#define RXTPLL          0x0B
#define RXTPLM          0x0C
#define INTCST          0x0D
/* XXX DPORG register mentioned on page 20, but undocumented */

/* XXX Program Memory Control Bit mentioned on page 20, but undocumented */
#define PROGRAM_MEMORY_CONTROL_BIT 0x2040

/* USB */
#define USB_BASE 0x1000
/* offsets from the base address */
#define FRM_NUM_H       0x0FD
#define FRM_NUM_L       0x0FC
#define GLB_STATE       0x0FB
#define SPRSR           0x0FA
#define SPRSIE          0x0F9
#define UISR            0x0F7
#define UIAR            0x0F5
#define FADDR           0x0F2
#define ENDPPGPG        0x0F1
#define ECR0            0x0EF
#define ECR1            0x0EE
#define ECR2            0x0ED
#define ECR3            0x0EC
#define ECR4            0x0EB
#define ECR5            0x0EA
#define ECR6            0x0E9
#define ECR7            0x0E8
#define CSR0            0x0DF
#define CSR1            0x0DE
#define CSR2            0x0DD
#define CSR3            0x0DC
#define CSR4            0x0DB
#define CSR5            0x0DA
#define CSR6            0x0D9
#define CSR7            0x0D8
#define FDR0            0x0CF
#define FDR1            0x0CE
#define FDR2            0x0CD
#define FDR3            0x0CC
#define FDR4            0x0CB
#define FDR5            0x0CA
#define FDR6            0x0C9
#define FDR7            0x0C8
#define FBYTE_CNT0_L    0x0BF
#define FBYTE_CNT1_L    0x0BE
#define FBYTE_CNT2_L    0x0BD
#define FBYTE_CNT3_L    0x0BC
#define FBYTE_CNT4_L    0x0BB
#define FBYTE_CNT5_L    0x0BA
#define FBYTE_CNT6_L    0x0B9
#define FBYTE_CNT7_L    0x0B8
#define FBYTE_CNT0_H    0x0AF
#define FBYTE_CNT1_H    0x0AE
#define FBYTE_CNT2_H    0x0AD
#define FBYTE_CNT3_H    0x0AC
#define FBYTE_CNT4_H    0x0AB
#define FBYTE_CNT5_H    0x0AA
#define FBYTE_CNT6_H    0x0A9
#define FBYTE_CNT7_H    0x0A8
#define SLP_MD_EN       0x100
#define IRQ_EN          0x101
#define IRQ_STAT        0x102
#define SUSP_WUP        0x103
#define PA_EN           0x104
#define USB_DMA_ADL     0x105
#define USB_DMA_ADH     0x106
#define USB_DMA_PLR     0x107
#define USB_DMA_EAD     0x108
#define USB_DMA_PLT     0x109
#define USB_DMA_EN      0x10A

/* Pointer registers (same for all AVR devices so far) */
#define XL r26
#define XH r27
#define YL r28
#define YH r29
#define ZL r30
#define ZH r31

/* Last memory addresses */
#define RAMEND          0x07FF
#define XRAMEND         0x07FF
#define E2END           0
#define FLASHEND        0x3FFF

/*
   AT76C711 data space memory map (ranges not listed are reserved):
   0x0000 - 0x001F - AVR registers
   0x0020 - 0x005F - AVR I/O space
   0x0060 - 0x07FF - AVR data SRAM
   0x1000 - 0x1FFF - USB (not all locations used)
   0x2000 - 0x201F - DMA controller
   0x2020 - 0x202F - UART0
   0x2030 - 0x203F - UART1 (IRDA)
   0x2040          - the mysterious Program Memory Control bit (???)
   0x3000 - 0x37FF - DPRAM
   0x8000 - 0xBFFF - program SRAM (read/write), would be nice if other
                     AVR devices did that as well (no need to use LPM!)
 */
#endif  /* __IO76C711 */

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