/************************************************************************************************
* arch/arm/src/sam3u/sam3u_uart.h
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name NuttX nor the names of its 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 __ARCH_ARM_SRC_SAM3U_SAM3U_UART_H
#define __ARCH_ARM_SRC_SAM3U_SAM3U_UART_H
/************************************************************************************************
* Included Files
************************************************************************************************/
#include <nuttx/config.h>
#include "chip.h"
#include "sam3u_memorymap.h"
/************************************************************************************************
* Pre-processor Definitions
************************************************************************************************/
/* UART register offsets ************************************************************************/
#define SAM3U_UART_CR_OFFSET 0x0000 /* Control Register (Common) */
#define SAM3U_UART_MR_OFFSET 0x0004 /* Mode Register (Common) */
#define SAM3U_UART_IER_OFFSET 0x0008 /* Interrupt Enable Register (Common) */
#define SAM3U_UART_IDR_OFFSET 0x000c /* Interrupt Disable Register (Common) */
#define SAM3U_UART_IMR_OFFSET 0x0010 /* Interrupt Mask Register (Common) */
#define SAM3U_UART_SR_OFFSET 0x0014 /* Status Register (Common) */
#define SAM3U_UART_RHR_OFFSET 0x0018 /* Receive Holding Register (Common) */
#define SAM3U_UART_THR_OFFSET 0x001c /* Transmit Holding Register (Common) */
#define SAM3U_UART_BRGR_OFFSET 0x0020 /* Baud Rate Generator Register (Common) */
/* 0x0024-0x003c: Reserved (UART) */
#define SAM3U_USART_RTOR_OFFSET 0x0024 /* Receiver Time-out Register (USART only) */
#define SAM3U_USART_TTGR_OFFSET 0x0028 /* Transmitter Timeguard Register (USART only) */
/* 0x002c-0x003c: Reserved (UART) */
#define SAM3U_USART_FIDI_OFFSET 0x0040 /* FI DI Ratio Register (USART only) */
#define SAM3U_USART_NER_OFFSET 0x0044 /* Number of Errors Register ((USART only) */
/* 0x0048: Reserved (USART) */
#define SAM3U_USART_IF_OFFSET 0x004c /* IrDA Filter Register (USART only) */
#define SAM3U_USART_MAN_OFFSET 0x0050 /* Manchester Encoder Decoder Register (USART only) */
#define SAM3U_USART_WPMR_OFFSET 0x00e4 /* Write Protect Mode Register (USART only) */
#define SAM3U_USART_WPSR_OFFSET 0x00e8 /* Write Protect Status Register (USART only) */
/* 0x005c-0xf008: Reserved (USART) */
#define SAM3U_USART_VERSION_OFFSET 0x00fc /* Version Register (USART only) */
/* 0x0100-0x0124: PDC Area (Common) */
/* UART register adresses ***********************************************************************/
#define SAM3U_UART_CR (SAM3U_UART_BASE+SAM3U_UART_CR_OFFSET)
#define SAM3U_UART_MR (SAM3U_UART_BASE+SAM3U_UART_MR_OFFSET)
#define SAM3U_UART_IER (SAM3U_UART_BASE+SAM3U_UART_IER_OFFSET)
#define SAM3U_UART_IDR (SAM3U_UART_BASE+SAM3U_UART_IDR_OFFSET)
#define SAM3U_UART_IMR (SAM3U_UART_BASE+SAM3U_UART_IMR_OFFSET)
#define SAM3U_UART_SR (SAM3U_UART_BASE+SAM3U_UART_SR_OFFSET)
#define SAM3U_UART_RHR (SAM3U_UART_BASE+SAM3U_UART_RHR_OFFSET)
#define SAM3U_UART_THR (SAM3U_UART_BASE+SAM3U_UART_THR_OFFSET)
#define SAM3U_UART_BRGR (SAM3U_UART_BASE+SAM3U_UART_BRGR_OFFSET)
#define SAM3U_USART_CR(n) (SAM3U_USARTN_BASE(n)+SAM3U_UART_CR_OFFSET)
#define SAM3U_USART_MR(n) (SAM3U_USARTN_BASE(n)+SAM3U_UART_MR_OFFSET)
#define SAM3U_USART_IER(n) (SAM3U_USARTN_BASE(n)+SAM3U_UART_IER_OFFSET)
#define SAM3U_USART_IDR(n) (SAM3U_USARTN_BASE(n)+SAM3U_UART_IDR_OFFSET)
#define SAM3U_USART_IMR(n) (SAM3U_USARTN_BASE(n)+SAM3U_UART_IMR_OFFSET)
#define SAM3U_USART_SR(n) (SAM3U_USARTN_BASE(n)+SAM3U_UART_SR_OFFSET)
#define SAM3U_USART_RHR(n) (SAM3U_USARTN_BASE(n)+SAM3U_UART_RHR_OFFSET)
#define SAM3U_USART_THR(n) (SAM3U_USARTN_BASE(n)+SAM3U_UART_THR_OFFSET)
#define SAM3U_USART_BRGR(n) (SAM3U_USARTN_BASE(n)+SAM3U_UART_BRGR_OFFSET)
#define SAM3U_USART_RTOR(n) (SAM3U_USARTN_BASE(n)+SAM3U_USART_RTOR_OFFSET)
#define SAM3U_USART_TTGR(n) (SAM3U_USARTN_BASE(n)+SAM3U_USART_TTGR_OFFSET)
#define SAM3U_USART_FIDI(n) (SAM3U_USARTN_BASE(n)+SAM3U_USART_FIDI_OFFSET)
#define SAM3U_USART_NER(n) (SAM3U_USARTN_BASE(n)+SAM3U_USART_NER_OFFSET)
#define SAM3U_USART_IF(n) (SAM3U_USARTN_BASE(n)+SAM3U_USART_IF_OFFSET)
#define SAM3U_USART_MAN(n) (SAM3U_USARTN_BASE(n)+SAM3U_USART_MAN_OFFSET)
#define SAM3U_USART_WPMR(n) (SAM3U_USARTN_BASE(n)+SAM3U_USART_WPMR_OFFSET)
#define SAM3U_USART_WPSR(n) (SAM3U_USARTN_BASE(n)+SAM3U_USART_WPSR_OFFSET)
#define SAM3U_USART_VERSION(n) (SAM3U_USARTN_BASE(n)+SAM3U_USART_VERSION_OFFSET)
#define SAM3U_USART0_CR (SAM3U_USART0_BASE+SAM3U_UART_CR_OFFSET)
#define SAM3U_USART0_MR_ (SAM3U_USART0_BASE+SAM3U_UART_MR_OFFSET)
#define SAM3U_USART0_IER (SAM3U_USART0_BASE+SAM3U_UART_IER_OFFSET)
#define SAM3U_USART0_IDR (SAM3U_USART0_BASE+SAM3U_UART_IDR_OFFSET)
#define SAM3U_USART0_IMR (SAM3U_USART0_BASE+SAM3U_UART_IMR_OFFSET)
#define SAM3U_USART0_SR (SAM3U_USART0_BASE+SAM3U_UART_SR_OFFSET)
#define SAM3U_USART0_RHR (SAM3U_USART0_BASE+SAM3U_UART_RHR_OFFSET)
#define SAM3U_USART0_THR (SAM3U_USART0_BASE+SAM3U_UART_THR_OFFSET)
#define SAM3U_USART0_BRGR (SAM3U_USART0_BASE+SAM3U_UART_BRGR_OFFSET)
#define SAM3U_USART0_RTOR (SAM3U_USART0_BASE+SAM3U_USART_RTOR_OFFSET)
#define SAM3U_USART0_TTGR (SAM3U_USART0_BASE+SAM3U_USART_TTGR_OFFSET)
#define SAM3U_USART0_FIDI (SAM3U_USART0_BASE+SAM3U_USART_FIDI_OFFSET)
#define SAM3U_USART0_NER (SAM3U_USART0_BASE+SAM3U_USART_NER_OFFSET)
#define SAM3U_USART0_IF (SAM3U_USART0_BASE+SAM3U_USART_IF_OFFSET)
#define SAM3U_USART0_MAN (SAM3U_USART0_BASE+SAM3U_USART_MAN_OFFSET)
#define SAM3U_USART0_WPMR (SAM3U_USART0_BASE+SAM3U_USART_WPMR_OFFSET)
#define SAM3U_USART0_WPSR (SAM3U_USART0_BASE+SAM3U_USART_WPSR_OFFSET)
#define SAM3U_USART0_VERSION (SAM3U_USART0_BASE+SAM3U_USART_VERSION_OFFSET)
#define SAM3U_USART1_CR (SAM3U_USART1_BASE+SAM3U_UART_CR_OFFSET)
#define SAM3U_USART1_MR_ (SAM3U_USART1_BASE+SAM3U_UART_MR_OFFSET)
#define SAM3U_USART1_IER (SAM3U_USART1_BASE+SAM3U_UART_IER_OFFSET)
#define SAM3U_USART1_IDR (SAM3U_USART1_BASE+SAM3U_UART_IDR_OFFSET)
#define SAM3U_USART1_IMR (SAM3U_USART1_BASE+SAM3U_UART_IMR_OFFSET)
#define SAM3U_USART1_SR (SAM3U_USART1_BASE+SAM3U_UART_SR_OFFSET)
#define SAM3U_USART1_RHR (SAM3U_USART1_BASE+SAM3U_UART_RHR_OFFSET)
#define SAM3U_USART1_THR (SAM3U_USART1_BASE+SAM3U_UART_THR_OFFSET)
#define SAM3U_USART1_BRGR (SAM3U_USART1_BASE+SAM3U_UART_BRGR_OFFSET)
#define SAM3U_USART1_RTOR (SAM3U_USART1_BASE+SAM3U_USART_RTOR_OFFSET)
#define SAM3U_USART1_TTGR (SAM3U_USART1_BASE+SAM3U_USART_TTGR_OFFSET)
#define SAM3U_USART1_FIDI (SAM3U_USART1_BASE+SAM3U_USART_FIDI_OFFSET)
#define SAM3U_USART1_NER (SAM3U_USART1_BASE+SAM3U_USART_NER_OFFSET)
#define SAM3U_USART1_IF (SAM3U_USART1_BASE+SAM3U_USART_IF_OFFSET)
#define SAM3U_USART1_MAN (SAM3U_USART1_BASE+SAM3U_USART_MAN_OFFSET)
#define SAM3U_USART1_WPMR (SAM3U_USART1_BASE+SAM3U_USART_WPMR_OFFSET)
#define SAM3U_USART1_WPSR (SAM3U_USART1_BASE+SAM3U_USART_WPSR_OFFSET)
#define SAM3U_USART1_VERSION (SAM3U_USART1_BASE+SAM3U_USART_VERSION_OFFSET)
#define SAM3U_USART2_CR (SAM3U_USART2_BASE+SAM3U_UART_CR_OFFSET)
#define SAM3U_USART2_MR_ (SAM3U_USART2_BASE+SAM3U_UART_MR_OFFSET)
#define SAM3U_USART2_IER (SAM3U_USART2_BASE+SAM3U_UART_IER_OFFSET)
#define SAM3U_USART2_IDR (SAM3U_USART2_BASE+SAM3U_UART_IDR_OFFSET)
#define SAM3U_USART2_IMR (SAM3U_USART2_BASE+SAM3U_UART_IMR_OFFSET)
#define SAM3U_USART2_SR (SAM3U_USART2_BASE+SAM3U_UART_SR_OFFSET)
#define SAM3U_USART2_RHR (SAM3U_USART2_BASE+SAM3U_UART_RHR_OFFSET)
#define SAM3U_USART2_THR (SAM3U_USART2_BASE+SAM3U_UART_THR_OFFSET)
#define SAM3U_USART2_BRGR (SAM3U_USART2_BASE+SAM3U_UART_BRGR_OFFSET)
#define SAM3U_USART2_RTOR (SAM3U_USART2_BASE+SAM3U_USART_RTOR_OFFSET)
#define SAM3U_USART2_TTGR (SAM3U_USART2_BASE+SAM3U_USART_TTGR_OFFSET)
#define SAM3U_USART2_FIDI (SAM3U_USART2_BASE+SAM3U_USART_FIDI_OFFSET)
#define SAM3U_USART2_NER (SAM3U_USART2_BASE+SAM3U_USART_NER_OFFSET)
#define SAM3U_USART2_IF (SAM3U_USART2_BASE+SAM3U_USART_IF_OFFSET)
#define SAM3U_USART2_MAN (SAM3U_USART2_BASE+SAM3U_USART_MAN_OFFSET)
#define SAM3U_USART2_WPMR (SAM3U_USART2_BASE+SAM3U_USART_WPMR_OFFSET)
#define SAM3U_USART2_WPSR (SAM3U_USART2_BASE+SAM3U_USART_WPSR_OFFSET)
#define SAM3U_USART2_VERSION (SAM3U_USART2_BASE+SAM3U_USART_VERSION_OFFSET)
#define SAM3U_USART3_CR (SAM3U_USART3_BASE+SAM3U_UART_CR_OFFSET)
#define SAM3U_USART3_MR_ (SAM3U_USART3_BASE+SAM3U_UART_MR_OFFSET)
#define SAM3U_USART3_IER (SAM3U_USART3_BASE+SAM3U_UART_IER_OFFSET)
#define SAM3U_USART3_IDR (SAM3U_USART3_BASE+SAM3U_UART_IDR_OFFSET)
#define SAM3U_USART3_IMR (SAM3U_USART3_BASE+SAM3U_UART_IMR_OFFSET)
#define SAM3U_USART3_SR (SAM3U_USART3_BASE+SAM3U_UART_SR_OFFSET)
#define SAM3U_USART3_RHR (SAM3U_USART3_BASE+SAM3U_UART_RHR_OFFSET)
#define SAM3U_USART3_THR (SAM3U_USART3_BASE+SAM3U_UART_THR_OFFSET)
#define SAM3U_USART3_BRGR (SAM3U_USART3_BASE+SAM3U_UART_BRGR_OFFSET)
#define SAM3U_USART3_RTOR (SAM3U_USART3_BASE+SAM3U_USART_RTOR_OFFSET)
#define SAM3U_USART3_TTGR (SAM3U_USART3_BASE+SAM3U_USART_TTGR_OFFSET)
#define SAM3U_USART3_FIDI (SAM3U_USART3_BASE+SAM3U_USART_FIDI_OFFSET)
#define SAM3U_USART3_NER (SAM3U_USART3_BASE+SAM3U_USART_NER_OFFSET)
#define SAM3U_USART3_IF (SAM3U_USART3_BASE+SAM3U_USART_IF_OFFSET)
#define SAM3U_USART3_MAN (SAM3U_USART3_BASE+SAM3U_USART_MAN_OFFSET)
#define SAM3U_USART3_WPMR (SAM3U_USART3_BASE+SAM3U_USART_WPMR_OFFSET)
#define SAM3U_USART3_WPSR (SAM3U_USART3_BASE+SAM3U_USART_WPSR_OFFSET)
#define SAM3U_USART3_VERSION (SAM3U_USART3_BASE+SAM3U_USART_VERSION_OFFSET)
/* UART register bit definitions ****************************************************************/
/* UART Control Register */
#define UART_CR_RSTRX (1 << 2) /* Bit 2: Reset Receiver (Common) */
#define UART_CR_RSTTX (1 << 3) /* Bit 3: Reset Transmitter (Common) */
#define UART_CR_RXEN (1 << 4) /* Bit 4: Receiver Enable (Common) */
#define UART_CR_RXDIS (1 << 5) /* Bit 5: Receiver Disable (Common) */
#define UART_CR_TXEN (1 << 6) /* Bit 6: Transmitter Enable (Common) */
#define UART_CR_TXDIS (1 << 7) /* Bit 7: Transmitter Disable (Common) */
#define UART_CR_RSTSTA (1 << 8) /* Bit 8: Reset Status Bits (Common) */
#define USART_CR_STTBRK (1 << 9) /* Bit 9: Start Break (USART only) */
#define USART_CR_STPBRK (1 << 10) /* Bit 10: Stop Break (USART only) */
#define USART_CR_STTTO (1 << 11) /* Bit 11: Start Time-out (USART only) */
#define USART_CR_SENDA (1 << 12) /* Bit 12: Send Address (USART only) */
#define USART_CR_RSTIT (1 << 13) /* Bit 13: Reset Iterations (USART only) */
#define USART_CR_RSTNACK (1 << 14) /* Bit 14: Reset Non Acknowledge (USART only) */
#define USART_CR_RETTO (1 << 15) /* Bit 15: Rearm Time-out (USART only) */
#define USART_CR_RTSEN (1 << 18) /* Bit 18: Request to Send Enable (USART only) */
#define USART_CR_FCS (1 << 18) /* Bit 18: Force SPI Chip Select (USART only) */
#define USART_CR_RTSDIS (1 << 19) /* Bit 19: Request to Send Disable (USART only) */
#define USART_CR_RCS (1 << 19) /* Bit 19: Release SPI Chip Select (USART only) */
/* UART Mode Register */
#define USART_MR_MODE_SHIFT (0) /* Bits 0-3: (USART only) */
#define USART_MR_MODE_MASK (15 << USART_MR_MODE_SHIFT)
# define USART_MR_MODE_NORMAL (0 << USART_MR_MODE_SHIFT) /* Normal */
# define USART_MR_MODE_RS485 (1 << USART_MR_MODE_SHIFT) /* RS485 */
# define USART_MR_MODE_HWHS (2 << USART_MR_MODE_SHIFT) /* Hardware Handshaking */
# define USART_MR_MODE_ISO7816_0 (4 << USART_MR_MODE_SHIFT) /* IS07816 Protocol: T = 0 */
# define USART_MR_MODE_ISO7816_1 (6 << USART_MR_MODE_SHIFT) /* IS07816 Protocol: T = 1 */
# define USART_MR_MODE_IRDA (8 << USART_MR_MODE_SHIFT) /* IrDA */
# define USART_MR_MODE_SPIMSTR (14 << USART_MR_MODE_SHIFT) /* SPI Master */
# define USART_MR_MODE_SPISLV (15 << USART_MR_MODE_SHIFT) /* SPI Slave */
#define USART_MR_USCLKS_SHIFT (4) /* Bits 4-5: Clock Selection (USART only) */
#define USART_MR_USCLKS_MASK (3 << USART_MR_USCLKS_SHIFT)
# define USART_MR_USCLKS_MCK (0 << USART_MR_USCLKS_SHIFT) /* MCK */
# define USART_MR_USCLKS_MCKDIV (1 << USART_MR_USCLKS_SHIFT) /* MCK/DIV (DIV = 8) */
# define USART_MR_USCLKS_SCK (3 << USART_MR_USCLKS_SHIFT) /* SCK */
#define USART_MR_CHRL_SHIFT (6) /* Bits 6-7: Character Length (USART only) */
#define USART_MR_CHRL_MASK (3 << USART_MR_CHRL_SHIFT)
# define USART_MR_CHRL_5BITS (0 << USART_MR_CHRL_SHIFT) /* 5 bits */
# define USART_MR_CHRL_6BITS (1 << USART_MR_CHRL_SHIFT) /* 6 bits */
# define USART_MR_CHRL_7BITS (2 << USART_MR_CHRL_SHIFT) /* 7 bits */
# define USART_MR_CHRL_8BITS (3 << USART_MR_CHRL_SHIFT) /* 8 bits */
#define USART_MR_YNC (1 << 8) /* Bit 8: Synchronous Mode Select (USART only) */
#define USART_MR_CPHA (1 << 8) /* Bit 8: SPI Clock Phase (USART only) */
#define UART_MR_PAR_SHIFT (9) /* Bits 9-11: Parity Type (Common) */
#define UART_MR_PAR_MASK (7 << UART_MR_PAR_SHIFT)
# define UART_MR_PAR_EVEN (0 << UART_MR_PAR_SHIFT) /* Even parity (Common) */
# define UART_MR_PAR_ODD (1 << UART_MR_PAR_SHIFT) /* Odd parity (Common) */
# define UART_MR_PAR_SPACE (2 << UART_MR_PAR_SHIFT) /* Space: parity forced to 0 (Common) */
# define UART_MR_PAR_MARK (3 << UART_MR_PAR_SHIFT) /* Mark: parity forced to 1 (Common) */
# define UART_MR_PAR_NONE (4 << UART_MR_PAR_SHIFT) /* No parity (Common) */
# define UART_MR_PAR_MULTIDROP (6 << UART_MR_PAR_SHIFT) /* Multidrop mode (USART only) */
#define USART_MR_NBSTOP_SHIFT (12) /* Bits 12-13: Number of Stop Bits (USART only) */
#define USART_MR_NBSTOP_MASK (3 << USART_MR_NBSTOP_SHIFT)
# define USART_MR_NBSTOP_1 (0 << USART_MR_NBSTOP_SHIFT) /* 1 stop bit 1 stop bit */
# define USART_MR_NBSTOP_1p5 (1 << USART_MR_NBSTOP_SHIFT) /* 1.5 stop bits */
# define USART_MR_NBSTOP_2 (2 << USART_MR_NBSTOP_SHIFT) /* 2 stop bits 2 stop bits */
#define UART_MR_CHMODE_SHIFT (14) /* Bits 14-15: Channel Mode (Common) */
#define UART_MR_CHMODE_MASK (3 << UART_MR_CHMODE_SHIFT)
# define UART_MR_CHMODE_NORMAL (0 << UART_MR_CHMODE_SHIFT) /* Normal Mode */
# define UART_MR_CHMODE_ECHO (1 << UART_MR_CHMODE_SHIFT) /* Automatic Echo */
# define UART_MR_CHMODE_LLPBK (2 << UART_MR_CHMODE_SHIFT) /* Local Loopback */
# define UART_MR_CHMODE_RLPBK (3 << UART_MR_CHMODE_SHIFT) /* Remote Loopback */
#define USART_MR_MSBF (1 << 16) /* Bit 16: Bit Order or SPI Clock Polarity (USART only) */
#define USART_MR_CPOL (1 << 16)
#define USART_MR_MODE9 (1 << 17) /* Bit 17: 9-bit Character Length (USART only) */
#define USART_MR_CLKO (1 << 18) /* Bit 18: Clock Output Select (USART only) */
#define USART_MR_OVER (1 << 19) /* Bit 19: Oversampling Mode (USART only) */
#define USART_MR_INACK (1 << 20) /* Bit 20: Inhibit Non Acknowledge (USART only) */
#define USART_MR_DSNACK (1 << 21) /* Bit 21: Disable Successive NACK (USART only) */
#define USART_MR_VARSYNC (1 << 22) /* Bit 22: Variable Synchronization of Command/Data Sync Start Frame Delimiter (USART only) */
#define USART_MR_INVDATA (1 << 23) /* Bit 23: INverted Data (USART only) */
#define USART_MR_MAXITER_SHIFT (24) /* Bits 24-26: Max iterations (ISO7816 T=0 (USART only) */
#define USART_MR_MAXITER_MASK (7 << USART_MR_MAXITER_SHIFT)
#define USART_MR_FILTER (1 << 28) /* Bit 28: Infrared Receive Line Filter (USART only) */
#define USART_MR_MAN (1 << 29) /* Bit 29: Manchester Encoder/Decoder Enable (USART only) */
#define USART_MR_MODSYNC (1 << 30) /* Bit 30: Manchester Synchronization Mode (USART only) */
#define USART_MR_ONEBIT (1 << 31) /* Bit 31: Start Frame Delimiter Selector (USART only) */
/* UART Interrupt Enable Register, UART Interrupt Disable Register, UART Interrupt Mask
* Register, and UART Status Register common bit field definitions
*/
#define UART_INT_RXRDY (1 << 0) /* Bit 0: RXRDY Interrupt (Common) */
#define UART_INT_TXRDY (1 << 1) /* Bit 1: TXRDY Interrupt (Common) */
#define UART_INT_RXBRK (1 << 2) /* Bit 2: Break Received/End of Break */
#define UART_INT_ENDRX (1 << 3) /* Bit 3: End of Receive Transfer Interrupt (Common) */
#define UART_INT_ENDTX (1 << 4) /* Bit 4: End of Transmit Interrupt (Common) */
#define UART_INT_OVRE (1 << 5) /* Bit 5: Overrun Error Interrupt (Common) */
#define UART_INT_FRAME (1 << 6) /* Bit 6: Framing Error Interrupt (Common) */
#define UART_INT_PARE (1 << 7) /* Bit 7: Parity Error Interrupt (Common) */
#define USART_INT_TIMEOUT (1 << 8) /* Bit 8: Time-out Interrupt (USART only) */
#define UART_INT_TXEMPTY (1 << 9) /* Bit 9: TXEMPTY Interrupt (Common) */
#define USART_INT_ITER (1 << 10) /* Bit 10: Iteration Interrupt (USART only) */
#define USART_INT_UNRE (1 << 10) /* Bit 10: SPI Underrun Error Interrupt (USART only) */
#define UART_INT_TXBUFE (1 << 11) /* Bit 11: Buffer Empty Interrupt (Common) */
#define UART_INT_RXBUFF (1 << 12) /* Bit 12: Buffer Full Interrupt (Common) */
#define USART_INT_NACK (1 << 13) /* Bit 13: Non Acknowledge Interrupt (USART only) */
#define USART_INT_CTSIC (1 << 19) /* Bit 19: Clear to Send Input Change Interrupt (USART only) */
#define USART_INT_MANE (1 << 24) /* Bit 24: Manchester Error Interrupt (USART only) */
/* UART Receiver Holding Register */
#define UART_RHR_RXCHR_SHIFT (0) /* Bits 0-7: Received Character (UART only) */
#define UART_RHR_RXCHR_MASK (0xff << UART_RHR_RXCHR_SHIFT)
#define USART_RHR_RXCHR_SHIFT (0) /* Bits 0-8: Received Character (USART only) */
#define USART_RHR_RXCHR_MASK (0x1ff << UART_RHR_RXCHR_SHIFT)
#define USART_RHR_RXSYNH (1 << 15) /* Bit 15: Received Sync (USART only) */
/* UART Transmit Holding Register */
#define UART_THR_TXCHR_SHIFT (0) /* Bits 0-7: Character to be Transmitted (UART only) */
#define UART_THR_TXCHR_MASK (0xff << UART_THR_TXCHR_SHIFT)
#define USART_THR_TXCHR_SHIFT (0) /* Bits 0-8: Character to be Transmitted (USART only) */
#define USART_THR_TXCHR_MASK (0x1ff << USART_THR_TXCHR_SHIFT)
#define USART_THR_TXSYNH (1 << 15) /* Bit 15: Sync Field to be tran (USART only) */
/* UART Baud Rate Generator Register */
#define UART_BRGR_CD_SHIFT (0) /* Bits 0-15: Clock Divisor (Common) */
#define UART_BRGR_CD_MASK (0xffff << UART_BRGR_CD_SHIFT)
#define UART_BRGR_FP_SHIFT (16) /* Bits 16-18: Fractional Part (USART only) */
#define UART_BRGR_FP_MASK (7 << UART_BRGR_FP_SHIFT)
/* USART Receiver Time-out Register (USART only) */
#define USART_RTOR_TO_SHIFT (0) /* Bits 0-15: Time-out Value (USART only) */
#define USART_RTOR_TO_MASK (0xffff << USART_RTOR_TO_SHIFT)
/* USART Transmitter Timeguard Register (USART only) */
#define USART_TTGR_TG_SHIFT (0) /* Bits 0-7: Timeguard Value (USART only) */
#define USART_TTGR_TG_MASK (0xff << USART_TTGR_TG_SHIFT)
/* USART FI DI RATIO Register (USART only) */
#define USART_FIDI_RATIO_SHIFT (0) /* Bits 0-10: FI Over DI Ratio Value (USART only) */
#define USART_FIDI_RATIO_MASK (0x7ff << USART_FIDI_RATIO_SHIFT)
/* USART Number of Errors Register (USART only) */
#define USART_NER_NBERRORS_SHIFT (0) /* Bits 0-7: Number of Errrors (USART only) */
#define USART_NER_NBERRORS_MASK (0xff << USART_NER_NBERRORS_SHIFT)
/* USART IrDA FILTER Register (USART only) */
#define USART_IF_IRDAFILTER_SHIFT (0) /* Bits 0-7: IrDA Filter (USART only) */
#define USART_IF_IRDAFILTER_MASK (0xff << USART_IF_IRDAFILTER_SHIFT)
/* USART Manchester Configuration Register (USART only) */
#define USART_MAN_TXPL_SHIFT (0) /* Bits 0-3: Transmitter Preamble Length (USART only) */
#define USART_MAN_TXPL_MASK (15 << USART_MAN_TXPL_SHIFT)
#define USART_MAN_TXPP_SHIFT (8) /* Bits 8-9: Transmitter Preamble Pattern (USART only) */
#define USART_MAN_TXPP_MASK (3 << USART_MAN_TXPP_SHIFT)
# define USART_MAN_TXPP_ALLONE (0 << USART_MAN_TXPP_SHIFT) /* ALL_ONE */
# define USART_MAN_TXPP_ALLZERO (1 << USART_MAN_TXPP_SHIFT) /* ALL_ZERO */
# define USART_MAN_TXPP_ZEROONE (2 << USART_MAN_TXPP_SHIFT) /* ZERO_ONE */
# define USART_MAN_TXPP_ONEZERO (3 << USART_MAN_TXPP_SHIFT) /* ONE_ZERO */
#define USART_MAN_TXMPOL (1 << 12) /* Bit 12: Transmitter Manchester Polarity (USART only) */
#define USART_MAN_RXPL_SHIFT (16) /* Bits 16-19: Receiver Preamble Length (USART only) */
#define USART_MAN_RXPL_MASK (15 << USART_MAN_RXPL_SHIFT)
#define USART_MAN_RXPP_SHIFT (24) /* Bits 24-25: Receiver Preamble Pattern detected (USART only) */
#define USART_MAN_RXPP_MASK (3 << USART_MAN_RXPP_SHIFT)
# define USART_MAN_RXPP_ALLONE (0 << USART_MAN_RXPP_SHIFT) /* ALL_ONE */
# define USART_MAN_RXPP_ALLZERO (1 << USART_MAN_RXPP_SHIFT) /* ALL_ZERO */
# define USART_MAN_RXPP_ZEROONE (2 << USART_MAN_RXPP_SHIFT) /* ZERO_ONE */
# define USART_MAN_RXPP_ONEZERO (3 << USART_MAN_RXPP_SHIFT) /* ONE_ZERO */
#define USART_MAN_RXMPOL (1 << 28) /* Bit 28: Receiver Manchester Polarity (USART only) */
#define USART_MAN_DRIFT (1 << 30) /* Bit 30: Drift compensation (USART only) */
/* USART Write Protect Mode Register (USART only) */
#define USART_WPMR_WPEN (1 << 0) /* Bit 0: Write Protect Enable (USART only) */
#define USART_WPMR_WPKEY_SHIFT (8) /* Bits 8-31: Write Protect KEY (USART only) */
#define USART_WPMR_WPKEY_MASK (0x00ffffff << USART_WPMR_WPKEY_SHIFT)
/* USART Write Protect Status Register (USART only) */
#define USART_WPSR_WPVS (1 << 0) /* Bit 0: Write Protect Violation Status (USART only) */
#define USART_WPSR_WPVSRC_SHIFT (8) /* Bits 8-23: Write Protect Violation Source (USART only) */
#define USART_WPSR_WPVSRC_MASK (0xffff << USART_WPSR_WPVSRC_SHIFT)
/* USART Version Register */
#define USART_VERSION_VERSION_SHIFT (0) /* Bits 0-11: Macrocell version number (USART only) */
#define USART_VERSION_VERSION_MASK (0xfff << USART_VERSION_VERSION_SHIFT)
#define USART_VERSION_MFN_SHIFT (16) /* Bits 16-18: Reserved (USART only) */
#define USART_VERSION_MFN_MASK (7 << USART_VERSION_MFN_SHIFT)
/************************************************************************************************
* Public Types
************************************************************************************************/
/************************************************************************************************
* Public Data
************************************************************************************************/
/************************************************************************************************
* Public Functions
************************************************************************************************/
#endif /* __ARCH_ARM_SRC_SAM3U_SAM3U_UART_H */
