278 lines
16 KiB
C
278 lines
16 KiB
C
/************************************************************************************
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* arch/mips/src/pic32mx/pic32mx-uart.h
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*
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* Copyright (C) 2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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#ifndef __ARCH_MIPS_SRC_PIC32MX_PIC32MX_UART_H
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#define __ARCH_MIPS_SRC_PIC32MX_PIC32MX_UART_H
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/************************************************************************************
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* Included Files
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************************************************************************************/
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#include <nuttx/config.h>
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#include "chip.h"
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#include "pic32mx-memorymap.h"
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/************************************************************************************
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* Pre-Processor Definitions
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************************************************************************************/
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/* Register Offsets *****************************************************************/
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#define PIC32MX_UART_MODE_OFFSET 0x0000 /* UARTx mode register */
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#define PIC32MX_UART_MODECLR_OFFSET 0x0004 /* UARTx mode clear register */
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#define PIC32MX_UART_MODESET_OFFSET 0x0008 /* UARTx mode set register */
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#define PIC32MX_UART_MODEINV_OFFSET 0x000c /* UARTx mode invert register */
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#define PIC32MX_UART_STA_OFFSET 0x0010 /* UARTx status and control register */
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#define PIC32MX_UART_STACLR_OFFSET 0x0014 /* UARTx status and control clear register */
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#define PIC32MX_UART_STASET_OFFSET 0x0018 /* UARTx status and control set register */
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#define PIC32MX_UART_STAINV_OFFSET 0x001c /* UARTx status and control invert register */
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#define PIC32MX_UART_TXREG_OFFSET 0x0020 /* UARTx transmit register */
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#define PIC32MX_UART_RXREG_OFFSET 0x0030 /* UARTx receive register */
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#define PIC32MX_UART_BRG_OFFSET 0x0040 /* UARTx baud rate register */
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#define PIC32MX_UART_BRGCLR_OFFSET 0x0044 /* UARTx baud rate clear register */
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#define PIC32MX_UART_BRGSET_OFFSET 0x0048 /* UARTx baud rate set register */
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#define PIC32MX_UART_BRGINV_OFFSET 0x004c /* UARTx baud rate invert register */
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/* Register Addresses ****************************************************************/
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#if CHIP_NUARTS > 0
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# define PIC32MX_UART1_MODE (PIC32MX_UART1_K1BASE+PIC32MX_UART_MODE_OFFSET)
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# define PIC32MX_UART1_MODECLR (PIC32MX_UART1_K1BASE+PIC32MX_UART_MODECLR_OFFSET)
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# define PIC32MX_UART1_MODESET (PIC32MX_UART1_K1BASE+PIC32MX_UART_MODESET_OFFSET)
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# define PIC32MX_UART1_MODEINV (PIC32MX_UART1_K1BASE+PIC32MX_UART_MODEINV_OFFSET)
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# define PIC32MX_UART1_STA (PIC32MX_UART1_K1BASE+PIC32MX_UART_STA_OFFSET)
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# define PIC32MX_UART1_STACLR (PIC32MX_UART1_K1BASE+PIC32MX_UART_STACLR_OFFSET)
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# define PIC32MX_UART1_STASET (PIC32MX_UART1_K1BASE+PIC32MX_UART_STASET_OFFSET)
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# define PIC32MX_UART1_STAINV (PIC32MX_UART1_K1BASE+PIC32MX_UART_STAINV_OFFSET)
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# define PIC32MX_UART1_TXREG (PIC32MX_UART1_K1BASE+PIC32MX_UART_TXREG_OFFSET)
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# define PIC32MX_UART1_RXREG (PIC32MX_UART1_K1BASE+PIC32MX_UART_RXREG_OFFSET)
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# define PIC32MX_UART1_BRG (PIC32MX_UART1_K1BASE+PIC32MX_UART_BRG_OFFSET)
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# define PIC32MX_UART1_BRGCLR (PIC32MX_UART1_K1BASE+PIC32MX_UART_BRGCLR_OFFSET)
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# define PIC32MX_UART1_BRGSET (PIC32MX_UART1_K1BASE+PIC32MX_UART_BRGSET_OFFSET)
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# define PIC32MX_UART1_BRGINV (PIC32MX_UART1_K1BASE+PIC32MX_UART_BRGINV_OFFSET)
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#endif
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#if CHIP_NUARTS > 1
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# define PIC32MX_UART2_MODE (PIC32MX_UART2_K1BASE+PIC32MX_UART_MODE_OFFSET)
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# define PIC32MX_UART2_MODECLR (PIC32MX_UART2_K1BASE+PIC32MX_UART_MODECLR_OFFSET)
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# define PIC32MX_UART2_MODESET (PIC32MX_UART2_K1BASE+PIC32MX_UART_MODESET_OFFSET)
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# define PIC32MX_UART2_MODEINV (PIC32MX_UART2_K1BASE+PIC32MX_UART_MODEINV_OFFSET)
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# define PIC32MX_UART2_STA (PIC32MX_UART2_K1BASE+PIC32MX_UART_STA_OFFSET)
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# define PIC32MX_UART2_STACLR (PIC32MX_UART2_K1BASE+PIC32MX_UART_STACLR_OFFSET)
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# define PIC32MX_UART2_STASET (PIC32MX_UART2_K1BASE+PIC32MX_UART_STASET_OFFSET)
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# define PIC32MX_UART2_STAINV (PIC32MX_UART2_K1BASE+PIC32MX_UART_STAINV_OFFSET)
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# define PIC32MX_UART2_TXREG (PIC32MX_UART2_K1BASE+PIC32MX_UART_TXREG_OFFSET)
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# define PIC32MX_UART2_RXREG (PIC32MX_UART2_K1BASE+PIC32MX_UART_RXREG_OFFSET)
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# define PIC32MX_UART2_BRG (PIC32MX_UART2_K1BASE+PIC32MX_UART_BRG_OFFSET)
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# define PIC32MX_UART2_BRGCLR (PIC32MX_UART2_K1BASE+PIC32MX_UART_BRGCLR_OFFSET)
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# define PIC32MX_UART2_BRGSET (PIC32MX_UART2_K1BASE+PIC32MX_UART_BRGSET_OFFSET)
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# define PIC32MX_UART2_BRGINV (PIC32MX_UART2_K1BASE+PIC32MX_UART_BRGINV_OFFSET)
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#endif
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#if CHIP_NUARTS > 2
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# define PIC32MX_UART3_MODE (PIC32MX_UART3_K1BASE+PIC32MX_UART_MODE_OFFSET)
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# define PIC32MX_UART3_MODECLR (PIC32MX_UART3_K1BASE+PIC32MX_UART_MODECLR_OFFSET)
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# define PIC32MX_UART3_MODESET (PIC32MX_UART3_K1BASE+PIC32MX_UART_MODESET_OFFSET)
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# define PIC32MX_UART3_MODEINV (PIC32MX_UART3_K1BASE+PIC32MX_UART_MODEINV_OFFSET)
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# define PIC32MX_UART3_STA (PIC32MX_UART3_K1BASE+PIC32MX_UART_STA_OFFSET)
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# define PIC32MX_UART3_STACLR (PIC32MX_UART3_K1BASE+PIC32MX_UART_STACLR_OFFSET)
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# define PIC32MX_UART3_STASET (PIC32MX_UART3_K1BASE+PIC32MX_UART_STASET_OFFSET)
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# define PIC32MX_UART3_STAINV (PIC32MX_UART3_K1BASE+PIC32MX_UART_STAINV_OFFSET)
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# define PIC32MX_UART3_TXREG (PIC32MX_UART3_K1BASE+PIC32MX_UART_TXREG_OFFSET)
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# define PIC32MX_UART3_RXREG (PIC32MX_UART3_K1BASE+PIC32MX_UART_RXREG_OFFSET)
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# define PIC32MX_UART3_BRG (PIC32MX_UART3_K1BASE+PIC32MX_UART_BRG_OFFSET)
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# define PIC32MX_UART3_BRGCLR (PIC32MX_UART3_K1BASE+PIC32MX_UART_BRGCLR_OFFSET)
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# define PIC32MX_UART3_BRGSET (PIC32MX_UART3_K1BASE+PIC32MX_UART_BRGSET_OFFSET)
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# define PIC32MX_UART3_BRGINV (PIC32MX_UART3_K1BASE+PIC32MX_UART_BRGINV_OFFSET)
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#endif
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#if CHIP_NUARTS > 3
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# define PIC32MX_UART4_MODE (PIC32MX_UART4_K1BASE+PIC32MX_UART_MODE_OFFSET)
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# define PIC32MX_UART4_MODECLR (PIC32MX_UART4_K1BASE+PIC32MX_UART_MODECLR_OFFSET)
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# define PIC32MX_UART4_MODESET (PIC32MX_UART4_K1BASE+PIC32MX_UART_MODESET_OFFSET)
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# define PIC32MX_UART4_MODEINV (PIC32MX_UART4_K1BASE+PIC32MX_UART_MODEINV_OFFSET)
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# define PIC32MX_UART4_STA (PIC32MX_UART4_K1BASE+PIC32MX_UART_STA_OFFSET)
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# define PIC32MX_UART4_STACLR (PIC32MX_UART4_K1BASE+PIC32MX_UART_STACLR_OFFSET)
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# define PIC32MX_UART4_STASET (PIC32MX_UART4_K1BASE+PIC32MX_UART_STASET_OFFSET)
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# define PIC32MX_UART4_STAINV (PIC32MX_UART4_K1BASE+PIC32MX_UART_STAINV_OFFSET)
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# define PIC32MX_UART4_TXREG (PIC32MX_UART4_K1BASE+PIC32MX_UART_TXREG_OFFSET)
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# define PIC32MX_UART4_RXREG (PIC32MX_UART4_K1BASE+PIC32MX_UART_RXREG_OFFSET)
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# define PIC32MX_UART4_BRG (PIC32MX_UART4_K1BASE+PIC32MX_UART_BRG_OFFSET)
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# define PIC32MX_UART4_BRGCLR (PIC32MX_UART4_K1BASE+PIC32MX_UART_BRGCLR_OFFSET)
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# define PIC32MX_UART4_BRGSET (PIC32MX_UART4_K1BASE+PIC32MX_UART_BRGSET_OFFSET)
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# define PIC32MX_UART4_BRGINV (PIC32MX_UART4_K1BASE+PIC32MX_UART_BRGINV_OFFSET)
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#endif
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#if CHIP_NUARTS > 4
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# define PIC32MX_UART5_MODE (PIC32MX_UART5_K1BASE+PIC32MX_UART_MODE_OFFSET)
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# define PIC32MX_UART5_MODECLR (PIC32MX_UART5_K1BASE+PIC32MX_UART_MODECLR_OFFSET)
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# define PIC32MX_UART5_MODESET (PIC32MX_UART5_K1BASE+PIC32MX_UART_MODESET_OFFSET)
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# define PIC32MX_UART5_MODEINV (PIC32MX_UART5_K1BASE+PIC32MX_UART_MODEINV_OFFSET)
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# define PIC32MX_UART5_STA (PIC32MX_UART5_K1BASE+PIC32MX_UART_STA_OFFSET)
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# define PIC32MX_UART5_STACLR (PIC32MX_UART5_K1BASE+PIC32MX_UART_STACLR_OFFSET)
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# define PIC32MX_UART5_STASET (PIC32MX_UART5_K1BASE+PIC32MX_UART_STASET_OFFSET)
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# define PIC32MX_UART5_STAINV (PIC32MX_UART5_K1BASE+PIC32MX_UART_STAINV_OFFSET)
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# define PIC32MX_UART5_TXREG (PIC32MX_UART5_K1BASE+PIC32MX_UART_TXREG_OFFSET)
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# define PIC32MX_UART5_RXREG (PIC32MX_UART5_K1BASE+PIC32MX_UART_RXREG_OFFSET)
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# define PIC32MX_UART5_BRG (PIC32MX_UART5_K1BASE+PIC32MX_UART_BRG_OFFSET)
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# define PIC32MX_UART5_BRGCLR (PIC32MX_UART5_K1BASE+PIC32MX_UART_BRGCLR_OFFSET)
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# define PIC32MX_UART5_BRGSET (PIC32MX_UART5_K1BASE+PIC32MX_UART_BRGSET_OFFSET)
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# define PIC32MX_UART5_BRGINV (PIC32MX_UART5_K1BASE+PIC32MX_UART_BRGINV_OFFSET)
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#endif
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#if CHIP_NUARTS > 5
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# define PIC32MX_UART6_MODE (PIC32MX_UART6_K1BASE+PIC32MX_UART_MODE_OFFSET)
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# define PIC32MX_UART6_MODECLR (PIC32MX_UART6_K1BASE+PIC32MX_UART_MODECLR_OFFSET)
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# define PIC32MX_UART6_MODESET (PIC32MX_UART6_K1BASE+PIC32MX_UART_MODESET_OFFSET)
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# define PIC32MX_UART6_MODEINV (PIC32MX_UART6_K1BASE+PIC32MX_UART_MODEINV_OFFSET)
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# define PIC32MX_UART6_STA (PIC32MX_UART6_K1BASE+PIC32MX_UART_STA_OFFSET)
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# define PIC32MX_UART6_STACLR (PIC32MX_UART6_K1BASE+PIC32MX_UART_STACLR_OFFSET)
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# define PIC32MX_UART6_STASET (PIC32MX_UART6_K1BASE+PIC32MX_UART_STASET_OFFSET)
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# define PIC32MX_UART6_STAINV (PIC32MX_UART6_K1BASE+PIC32MX_UART_STAINV_OFFSET)
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# define PIC32MX_UART6_TXREG (PIC32MX_UART6_K1BASE+PIC32MX_UART_TXREG_OFFSET)
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# define PIC32MX_UART6_RXREG (PIC32MX_UART6_K1BASE+PIC32MX_UART_RXREG_OFFSET)
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# define PIC32MX_UART6_BRG (PIC32MX_UART6_K1BASE+PIC32MX_UART_BRG_OFFSET)
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# define PIC32MX_UART6_BRGCLR (PIC32MX_UART6_K1BASE+PIC32MX_UART_BRGCLR_OFFSET)
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# define PIC32MX_UART6_BRGSET (PIC32MX_UART6_K1BASE+PIC32MX_UART_BRGSET_OFFSET)
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# define PIC32MX_UART6_BRGINV (PIC32MX_UART6_K1BASE+PIC32MX_UART_BRGINV_OFFSET)
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#endif
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/* Register Bit-Field Definitions ****************************************************/
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/* UARTx mode register */
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#define UART_MODE_STSEL (1 << 0) /* Bit 0: Stop selection 1=2 stop bits */
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#define UART_MODE_PDSEL_SHIFT (1) /* Bits: 1-2: Parity and data selection */
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#define UART_MODE_PDSEL_MASK (3 << UART_MODE_PDSEL_SHIFT)
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# define UART_MODE_PDSEL_8NONE (0 << UART_MODE_PDSEL_SHIFT) /* 8-bit data, no parity */
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# define UART_MODE_PDSEL_8EVEN (1 << UART_MODE_PDSEL_SHIFT) /* 8-bit data, even parity */
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# define UART_MODE_PDSEL_8ODD (2 << UART_MODE_PDSEL_SHIFT) /* 8-bit data, odd parity */
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# define UART_MODE_PDSEL_9NONE (3 << UART_MODE_PDSEL_SHIFT) /* 9-bit data, no parity */
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#define UART_MODE_BRGH (1 << 3) /* Bit 3: High baud rate enable */
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#define UART_MODE_RXINV (1 << 4) /* Bit 4: Receive polarity inversion */
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#define UART_MODE_ABAUD (1 << 5) /* Bit 5: Auto-baud enable */
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#define UART_MODE_LPBACK (1 << 6) /* Bit 6: UARTx loopback mode select */
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#define UART_MODE_WAKE (1 << 7) /* Bit 7: Enable wake-up on start bit detect during sleep mode */
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#define UART_MODE_UEN_SHIFT (8) /* Bits: 8-9: UARTx enable */
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#define UART_MODE_UEN_MASK (3 << UART_MODE_UEN_SHIFT)
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# define UART_MODE_UEN_PORT (0 << UART_MODE_UEN_SHIFT) /* UxCTS+UxRTS/UxBCLK=PORTx register */
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# define UART_MODE_UEN_ENR_CPORT (1 << UART_MODE_UEN_SHIFT) /* UxRTS=enabled; UxCTS=ORTx register */
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# define UART_MODE_UEN_ENCR (2 << UART_MODE_UEN_SHIFT) /* UxCTS+UxRTS=enabled */
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# define UART_MODE_UEN_CPORT (3 << UART_MODE_UEN_SHIFT) /* UxCTS=PORTx register */
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#define UART_MODE_RTSMD (1 << 11) /* Bit 11: Mode selection for ~UxRTS pin */
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#define UART_MODE_IREN (1 << 12) /* Bit 12: IrDA encoder and decoder enable */
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#define UART_MODE_SIDL (1 << 13) /* Bit 13: Stop in idle mode */
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#if !defined(CHIP_PIC32MX1) && !defined(CHIP_PIC32MX2)
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# define UART_MODE_FRZ (1 << 14) /* Bit 14: Freeze in debug exception mode */
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#endif
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#define UART_MODE_ON (1 << 15) /* Bit 15: UARTx enable */
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/* UARTx status and control register */
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#define UART_STA_URXDA (1 << 0) /* Bit 0: Receive buffer data available */
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#define UART_STA_OERR (1 << 1) /* Bit 1: Receive buffer overrun error status */
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#define UART_STA_FERR (1 << 2) /* Bit 2: Framing error status */
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#define UART_STA_PERR (1 << 3) /* Bit 3: Parity error status */
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#define UART_STA_RIDLE (1 << 4) /* Bit 4: Receiver idle */
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#define UART_STA_ADDEN (1 << 5) /* Bit 5: Address character detect */
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#define UART_STA_URXISEL_SHIFT (6) /* Bits: 6-7: Receive interrupt mode selection */
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#define UART_STA_URXISEL_MASK (3 << UART_STA_URXISEL_SHIFT)
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#if CHIP_UARTFIFOD == 4
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# define UART_STA_URXISEL_RECVD (0 << UART_STA_URXISEL_SHIFT) /* Character received */
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# define UART_STA_URXISEL_RXB3 (2 << UART_STA_URXISEL_SHIFT) /* RX buffer 3/4 */
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# define UART_STA_URXISEL_RXBF (3 << UART_STA_URXISEL_SHIFT) /* RX buffer full */
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#elif CHIP_UARTFIFOD == 8
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# define UART_STA_URXISEL_RECVD (0 << UART_STA_URXISEL_SHIFT) /* Character received */
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# define UART_STA_URXISEL_RXB4 (1 << UART_STA_URXISEL_SHIFT) /* RX buffer 1/2 */
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# define UART_STA_URXISEL_RXB6 (2 << UART_STA_URXISEL_SHIFT) /* RX buffer 3/4 */
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#endif
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#define UART_STA_UTRMT (1 << 8) /* Bit 8: Transmit shift register is empty */
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#define UART_STA_UTXBF (1 << 9) /* Bit 9: Transmit buffer full status */
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#define UART_STA_UTXEN (1 << 10) /* Bit 10: Transmit enable */
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#define UART_STA_UTXBRK (1 << 11) /* Bit 11: Transmit break */
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#define UART_STA_URXEN (1 << 12) /* Bit 12: Receiver enable */
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#define UART_STA_UTXINV (1 << 13) /* Bit 13: Transmit polarity inversion */
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#define UART_STA_UTXISEL_SHIFT (14) /* Bits: 14-15: TX interrupt mode selection bi */
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#define UART_STA_UTXISEL_MASK (3 << UART_STA_UTXISEL_SHIFT)
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# define UART_STA_UTXISEL_TXBNF (0 << UART_STA_UTXISEL_SHIFT) /* TX buffer not full */
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# define UART_STA_UTXISEL_DRAINED (1 << UART_STA_UTXISEL_SHIFT) /* All characters sent */
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# define UART_STA_UTXISEL_TXBE (2 << UART_STA_UTXISEL_SHIFT) /* TX buffer empty */
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#define UART_STA_ADDR_SHIFT (16) /* Bits:16-23: Automatic address mask */
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#define UART_STA_ADDR_MASK (0xff << UART_STA_ADDR_SHIFT)
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#define UART_STA_ADM_EN (1 << 24) /* Bit 24: Automatic address detect mode enable */
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/* UARTx transmit register */
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#define UART_TXREG_MASK 0x1ff
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/* UARTx receive register */
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#define UART_RXREG_MASK 0x1ff
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/* UARTx baud rate register */
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#define UART_BRG_MASK 0xffff
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/************************************************************************************
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* Public Types
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************************************************************************************/
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#ifndef __ASSEMBLY__
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/************************************************************************************
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* Inline Functions
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************************************************************************************/
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/************************************************************************************
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* Public Function Prototypes
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************************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __ARCH_MIPS_SRC_PIC32MX_PIC32MX_UART_H */
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