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nuttx/arch/arm/src/lpc17xx/lpc17_uart.h
patacongo cbfe3a8bad More lpc17xx port files 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2735 42af7a65-404d-4744-a932-0658087f49c3
2010-06-08 03:16:46 +00:00

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/************************************************************************************
* arch/arm/src/lpc17xx/lpc17_uart.h
*
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* 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_LPC17XX_LPC17_UART_H
#define __ARCH_ARM_SRC_LPC17XX_LPC17_UART_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include "chip.h"
#include "lpc17_memorymap.h"
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* Register offsets *****************************************************************/
#define LPC17_UART_RBR_OFFSET 0x0000 /* (DLAB =0) Receiver Buffer Register (all) */
#define LPC17_UART_THR_OFFSET 0x0000 /* (DLAB =0) Transmit Holding Register (all) */
#define LPC17_UART_DLL_OFFSET 0x0000 /* (DLAB =1) Divisor Latch LSB (all) */
#define LPC17_UART_DLM_OFFSET 0x0004 /* (DLAB =1) Divisor Latch MSB (all) */
#define LPC17_UART_IER_OFFSET 0x0004 /* (DLAB =0) Interrupt Enable Register (all) */
#define LPC17_UART_IIR_OFFSET 0x0008 /* Interrupt ID Register (all) */
#define LPC17_UART_FCR_OFFSET 0x0008 /* FIFO Control Register (all) */
#define LPC17_UART_LCR_OFFSET 0x000c /* Line Control Register (all) */
#define LPC17_UART_MCR_OFFSET 0x0010 /* Modem Control Register (UART1 only) */
#define LPC17_UART_LSR_OFFSET 0x0014 /* Line Status Register (all) */
#define LPC17_UART_MSR_OFFSET 0x0018 /* Modem Status Register (UART1 only) */
#define LPC17_UART_SCR_OFFSET 0x001c /* Scratch Pad Register (all) */
#define LPC17_UART_ACR_OFFSET 0x0020 /* Auto-baud Control Register (all) */
#define LPC17_UART_ICR_OFFSET 0x0024 /* IrDA Control Register (UART0,2,3 only) */
#define LPC17_UART_FDR_OFFSET 0x0028 /* Fractional Divider Register (all) */
#define LPC17_UART_TER_OFFSET 0x0030 /* Transmit Enable Register (all) */
#define LPC17_UART_RS485CTRL_OFFSET 0x004c /* RS-485/EIA-485 Control (UART1 only) */
#define LPC17_UART_ADRMATCH_OFFSET 0x0050 /* RS-485/EIA-485 address match (UART1 only) */
#define LPC17_UART_RS485DLY_OFFSET 0x0054 /* RS-485/EIA-485 direction control delay (UART1 only) */
#define LPC17_UART_FIFOLVL_OFFSET 0x0058 /* FIFO Level register (all) */
/* Register addresses ***************************************************************/
#define LPC17_UART0_RBR (LPC17_UART0_BASE+LPC17_UART_RBR_OFFSET)
#define LPC17_UART0_THR (LPC17_UART0_BASE+LPC17_UART_THR_OFFSET)
#define LPC17_UART0_DLL (LPC17_UART0_BASE+LPC17_UART_DLL_OFFSET)
#define LPC17_UART0_DLM (LPC17_UART0_BASE+LPC17_UART_DLM_OFFSET)
#define LPC17_UART0_IER (LPC17_UART0_BASE+LPC17_UART_IER_OFFSET)
#define LPC17_UART0_IIR (LPC17_UART0_BASE+LPC17_UART_IIR_OFFSET)
#define LPC17_UART0_FCR (LPC17_UART0_BASE+LPC17_UART_FCR_OFFSET)
#define LPC17_UART0_LCR (LPC17_UART0_BASE+LPC17_UART_LCR_OFFSET)
#define LPC17_UART0_LSR (LPC17_UART0_BASE+LPC17_UART_LSR_OFFSET)
#define LPC17_UART0_SCR (LPC17_UART0_BASE+LPC17_UART_SCR_OFFSET)
#define LPC17_UART0_ACR (LPC17_UART0_BASE+LPC17_UART_ACR_OFFSET)
#define LPC17_UART0_ICR (LPC17_UART0_BASE+LPC17_UART_ICR_OFFSET)
#define LPC17_UART0_FDR (LPC17_UART0_BASE+LPC17_UART_FDR_OFFSET)
#define LPC17_UART0_TER (LPC17_UART0_BASE+LPC17_UART_TER_OFFSET)
#define LPC17_UART0_FIFOLVL (LPC17_UART0_BASE+LPC17_UART_FIFOLVL_OFFSET)
#define LPC17_UART1_RBR (LPC17_UART1_BASE+LPC17_UART_RBR_OFFSET)
#define LPC17_UART1_THR (LPC17_UART1_BASE+LPC17_UART_THR_OFFSET)
#define LPC17_UART1_DLL (LPC17_UART1_BASE+LPC17_UART_DLL_OFFSET)
#define LPC17_UART1_DLM (LPC17_UART1_BASE+LPC17_UART_DLM_OFFSET)
#define LPC17_UART1_IER (LPC17_UART1_BASE+LPC17_UART_IER_OFFSET)
#define LPC17_UART1_IIR (LPC17_UART1_BASE+LPC17_UART_IIR_OFFSET)
#define LPC17_UART1_FCR (LPC17_UART1_BASE+LPC17_UART_FCR_OFFSET)
#define LPC17_UART1_LCR (LPC17_UART1_BASE+LPC17_UART_LCR_OFFSET)
#define LPC17_UART1_MCR (LPC17_UART1_BASE+LPC17_UART_MCR_OFFSET)
#define LPC17_UART1_LSR (LPC17_UART1_BASE+LPC17_UART_LSR_OFFSET)
#define LPC17_UART1_MSR (LPC17_UART1_BASE+LPC17_UART_MSR_OFFSET)
#define LPC17_UART1_SCR (LPC17_UART1_BASE+LPC17_UART_SCR_OFFSET)
#define LPC17_UART1_ACR (LPC17_UART1_BASE+LPC17_UART_ACR_OFFSET)
#define LPC17_UART1_FDR (LPC17_UART1_BASE+LPC17_UART_FDR_OFFSET)
#define LPC17_UART1_TER (LPC17_UART1_BASE+LPC17_UART_TER_OFFSET)
#define LPC17_UART1_RS485CTRL (LPC17_UART1_BASE+LPC17_UART_RS485CTRL_OFFSET)
#define LPC17_UART1_ADRMATCH (LPC17_UART1_BASE+LPC17_UART_ADRMATCH_OFFSET)
#define LPC17_UART1_RS485DLY (LPC17_UART1_BASE+LPC17_UART_RS485DLY_OFFSET)
#define LPC17_UART1_FIFOLVL (LPC17_UART1_BASE+LPC17_UART_FIFOLVL_OFFSET)
#define LPC17_UART2_RBR (LPC17_UART2_BASE+LPC17_UART_RBR_OFFSET)
#define LPC17_UART2_THR (LPC17_UART2_BASE+LPC17_UART_THR_OFFSET)
#define LPC17_UART2_DLL (LPC17_UART2_BASE+LPC17_UART_DLL_OFFSET)
#define LPC17_UART2_DLM (LPC17_UART2_BASE+LPC17_UART_DLM_OFFSET)
#define LPC17_UART2_IER (LPC17_UART2_BASE+LPC17_UART_IER_OFFSET)
#define LPC17_UART2_IIR (LPC17_UART2_BASE+LPC17_UART_IIR_OFFSET)
#define LPC17_UART2_FCR (LPC17_UART2_BASE+LPC17_UART_FCR_OFFSET)
#define LPC17_UART2_LCR (LPC17_UART2_BASE+LPC17_UART_LCR_OFFSET)
#define LPC17_UART2_LSR (LPC17_UART2_BASE+LPC17_UART_LSR_OFFSET)
#define LPC17_UART2_SCR (LPC17_UART2_BASE+LPC17_UART_SCR_OFFSET)
#define LPC17_UART2_ACR (LPC17_UART2_BASE+LPC17_UART_ACR_OFFSET)
#define LPC17_UART2_ICR (LPC17_UART2_BASE+LPC17_UART_ICR_OFFSET)
#define LPC17_UART2_FDR (LPC17_UART2_BASE+LPC17_UART_FDR_OFFSET)
#define LPC17_UART2_TER (LPC17_UART2_BASE+LPC17_UART_TER_OFFSET)
#define LPC17_UART2_FIFOLVL (LPC17_UART2_BASE+LPC17_UART_FIFOLVL_OFFSET)
#define LPC17_UART3_RBR (LPC17_UART3_BASE+LPC17_UART_RBR_OFFSET)
#define LPC17_UART3_THR (LPC17_UART3_BASE+LPC17_UART_THR_OFFSET)
#define LPC17_UART3_DLL (LPC17_UART3_BASE+LPC17_UART_DLL_OFFSET)
#define LPC17_UART3_DLM (LPC17_UART3_BASE+LPC17_UART_DLM_OFFSET)
#define LPC17_UART3_IER (LPC17_UART3_BASE+LPC17_UART_IER_OFFSET)
#define LPC17_UART3_IIR (LPC17_UART3_BASE+LPC17_UART_IIR_OFFSET)
#define LPC17_UART3_FCR (LPC17_UART3_BASE+LPC17_UART_FCR_OFFSET)
#define LPC17_UART3_LCR (LPC17_UART3_BASE+LPC17_UART_LCR_OFFSET)
#define LPC17_UART3_LSR (LPC17_UART3_BASE+LPC17_UART_LSR_OFFSET)
#define LPC17_UART3_SCR (LPC17_UART3_BASE+LPC17_UART_SCR_OFFSET)
#define LPC17_UART3_ACR (LPC17_UART3_BASE+LPC17_UART_ACR_OFFSET)
#define LPC17_UART3_ICR (LPC17_UART3_BASE+LPC17_UART_ICR_OFFSET)
#define LPC17_UART3_FDR (LPC17_UART3_BASE+LPC17_UART_FDR_OFFSET)
#define LPC17_UART3_TER (LPC17_UART3_BASE+LPC17_UART_TER_OFFSET)
#define LPC17_UART3_FIFOLVL (LPC17_UART3_BASE+LPC17_UART_FIFOLVL_OFFSET)
/* Register bit definitions *********************************************************/
/* RBR (DLAB =0) Receiver Buffer Register (all) */
#define UART_RBR_MASK (0xff) /* Bits 0-7: Oldest received byte in RX FIFO */
/* Bits 8-31: Reserved */
/* THR (DLAB =0) Transmit Holding Register (all) */
#define UART_THR_MASK (0xff) /* Bits 0-7: Adds byte to TX FIFO */
/* Bits 8-31: Reserved */
/* DLL (DLAB =1) Divisor Latch LSB (all) */
#define UART_DLL_MASK (0xff) /* Bits 0-7: DLL */
/* Bits 8-31: Reserved */
/* DLM (DLAB =1) Divisor Latch MSB (all) */
#define UART_DLM_MASK (0xff) /* Bits 0-7: DLM */
/* Bits 8-31: Reserved */
/* IER (DLAB =0) Interrupt Enable Register (all) */
#define UART_IER_RBRIE (1 << 0) /* Bit 0: RBR Interrupt Enable */
#define UART_IER_THREIE (1 << 1) /* Bit 1: THRE Interrupt Enable */
#define UART_IER_RLSIE (1 << 2) /* Bit 2: RX Line Status Interrupt Enable */
#define UART_IER_MSIE (1 << 3) /* Bit 3: Modem Status Interrupt Enable (UART1 only) */
/* Bits 4-6: Reserved */
#define UART_IER_CTSIE (1 << 7) /* Bit 7: CTS transition interrupt (UART1 only) */
#define UART_IER_ABEOIE (1 << 8) /* Bit 8: Enables the end of auto-baud interrupt */
#define UART_IER_ABTOIE (1 << 9) /* Bit 9: Enables the auto-baud time-out interrupt */
/* Bits 10-31: Reserved */
#define UART_IER_ALLIE (0x038f)
/* IIR Interrupt ID Register (all) */
#define UART_IIR_INTSTATUS (1 << 0) /* Bit 0: Interrupt status (active low) */
#define UART_IIR_INTID_SHIFT (1) /* Bits 1-3: Interrupt identification */
#define UART_IIR_INTID_MASK (7 << UART_IIR_INTID_SHIFT)
# define UART_IIR_INTID_MSI (0 << UART_IIR_INTID_SHIFT) /* Modem Status (UART1 only) */
# define UART_IIR_INTID_THRE (1 << UART_IIR_INTID_SHIFT) /* THRE Interrupt */
# define UART_IIR_INTID_RDA (2 << UART_IIR_INTID_SHIFT) /* 2a - Receive Data Available (RDA */
# define UART_IIR_INTID_RLS (3 << UART_IIR_INTID_SHIFT) /* 1 - Receive Line Status (RLS) */
# define UART_IIR_INTID_CTI (6 << UART_IIR_INTID_SHIFT) /* 2b - Character Time-out Indicator (CTI) */
/* Bits 4-5: Reserved */
#define UART_IIR_FIFOEN_SHIFT (6) /* Bits 6-7: Copies of FCR bit 0 */
#define UART_IIR_FIFOEN_MASK (3 << UART_IIR_FIFOEN_SHIFT)
#define UART_IIR_ABEOINT (1 << 8) /* Bit 8: End of auto-baud interrupt */
#define UART_IIR_ABTOINT (1 << 9) /* Bit 9: Auto-baud time-out interrupt */
/* Bits 10-31: Reserved */
/* FCR FIFO Control Register (all) */
#define UART_FCR_FIFOEN (1 << 0) /* Bit 0: Enable FIFOs */
#define UART_FCR_RXRST (1 << 1) /* Bit 1: RX FIFO Reset */
#define UART_FCR_TXRST (1 << 2) /* Bit 2: TX FIFO Reset */
#define UART_FCR_DMAMODE (1 << 3) /* Bit 3: DMA Mode Select */
/* Bits 4-5: Reserved */
#define UART_FCR_RXTRIGGER_SHIFT (6) /* Bits 6-7: RX Trigger Level */
#define UART_FCR_RXTRIGGER_MASK (3 << UART_FCR_RXTRIGGER_SHIFT)
# define UART_FCR_RXTRIGGER_0 (0 << UART_FCR_RXTRIGGER_SHIFT) /* Trigger level 0 (1 character) */
# define UART_FCR_RXTRIGGER_4 (1 << UART_FCR_RXTRIGGER_SHIFT) /* Trigger level 1 (4 characters) */
# define UART_FCR_RXTRIGGER_8 (2 << UART_FCR_RXTRIGGER_SHIFT) /* Trigger level 2 (8 characters) */
# define UART_FCR_RXTRIGGER_14 (3 << UART_FCR_RXTRIGGER_SHIFT) /* Trigger level 3 (14 characters) */
/* Bits 8-31: Reserved */
/* LCR Line Control Register (all) */
#define UART_LCR_WLS_SHIFT (0) /* Bit 0-1: Word Length Select */
#define UART_LCR_WLS_MASK (3 << UART_LCR_WLS_SHIFT)
# define UART_LCR_WLS_5BIT (0 << UART_LCR_WLS_SHIFT)
# define UART_LCR_WLS_6BIT (1 << UART_LCR_WLS_SHIFT)
# define UART_LCR_WLS_7BIT (2 << UART_LCR_WLS_SHIFT)
# define UART_LCR_WLS_8BIT (3 << UART_LCR_WLS_SHIFT)
#define UART_LCR_STOP (1 << 2) /* Bit 2: Stop Bit Select */
#define UART_LCR_PE (1 << 3) /* Bit 3: Parity Enable */
#define UART_LCR_PS_SHIFT (4) /* Bits 4-5: Parity Select */
#define UART_LCR_PS_MASK (3 << UART_LCR_PS_SHIFT)
# define UART_LCR_PS_ODD (0 << UART_LCR_PS_SHIFT) /* Odd parity */
# define UART_LCR_PS_EVEN (1 << UART_LCR_PS_SHIFT) /* Even Parity */
# define UART_LCR_PS_STICK1 (2 << UART_LCR_PS_SHIFT) /* Forced "1" stick parity */
# define UART_LCR_PS_STICK0 (3 << UART_LCR_PS_SHIFT) /* Forced "0" stick parity */
#define UART_LCR_BRK (1 << 6) /* Bit 6: Break Control */
#define UART_LCR_DLAB (1 << 7) /* Bit 7: Divisor Latch Access Bit (DLAB) */
/* Bits 8-31: Reserved */
/* MCR Modem Control Register (UART1 only) */
#define UART_MCR_DTR (1 << 0) /* Bit 0: DTR Control Source for DTR output */
#define UART_MCR_RTS (1 << 1) /* Bit 1: Control Source for RTS output */
/* Bits 2-3: Reserved */
#define UART_MCR_LPBK (1 << 4) /* Bit 4: Loopback Mode Select */
/* Bit 5: Reserved */
#define UART_MCR_RTSEN (1 << 6) /* Bit 6: Enable auto-rts flow control */
#define UART_MCR_CTSEN (1 << 7) /* Bit 7: Enable auto-cts flow control */
/* Bits 8-31: Reserved */
/* LSR Line Status Register (all) */
#define UART_LSR_RDR (1 << 0) /* Bit 0: Receiver Data Ready */
#define UART_LSR_OE (1 << 1) /* Bit 1: Overrun Error */
#define UART_LSR_PE (1 << 2) /* Bit 2: Parity Error */
#define UART_LSR_FE (1 << 3) /* Bit 3: Framing Error */
#define UART_LSR_BI (1 << 4) /* Bit 4: Break Interrupt */
#define UART_LSR_THRE (1 << 5) /* Bit 5: Transmitter Holding Register Empty */
#define UART_LSR_TEMT (1 << 6) /* Bit 6: Transmitter Empty */
#define UART_LSR_RXFE (1 << 7) /* Bit 7: Error in RX FIFO (RXFE) */
/* Bits 8-31: Reserved */
/* MSR Modem Status Register (UART1 only) */
#define UART_MSR_DELTACTS (1 << 0) /* Bit 0: CTS state change */
#define UART_MSR_DELTADSR (1 << 1) /* Bit 1: DSR state change */
#define UART_MSR_RIEDGE (1 << 2) /* Bit 2: RI ow to high transition */
#define UART_MSR_DELTADCD (1 << 3) /* Bit 3: DCD state change */
#define UART_MSR_CTS (1 << 4) /* Bit 4: CTS State */
#define UART_MSR_DSR (1 << 5) /* Bit 5: DSR State */
#define UART_MSR_RI (1 << 6) /* Bit 6: Ring Indicator State */
#define UART_MSR_DCD (1 << 7) /* Bit 7: Data Carrier Detect State */
/* Bits 8-31: Reserved */
/* SCR Scratch Pad Register (all) */
#define UART_SCR_MASK (0xff) /* Bits 0-7: SCR data */
/* Bits 8-31: Reserved */
/* ACR Auto-baud Control Register (all) */
#define UART_ACR_START (1 << 0) /* Bit 0: Auto-baud start/running*/
#define UART_ACR_MODE (1 << 1) /* Bit 1: Auto-baud mode select*/
#define UART_ACR_AUTORESTART (1 << 2) /* Bit 2: Restart in case of time-out*/
/* Bits 3-7: Reserved */
#define UART_ACR_ABEOINTCLR (1 << 8) /* Bit 8: End of auto-baud interrupt clear */
#define UART_ACR_ABTOINTCLRT (1 << 9) /* Bit 9: Auto-baud time-out interrupt clear */
/* Bits 10-31: Reserved */
/* ICA IrDA Control Register (UART0,2,3 only) */
#define UART_ICR_IRDAEN (1 << 0) /* Bit 0: Enable IrDA mode */
#define UART_ICR_IRDAINV (1 << 1) /* Bit 1: Invert serial input */
#define UART_ICR_FIXPULSEEN (1 << 2) /* Bit 2: Enable IrDA fixed pulse width mode */
#define UART_ICR_PULSEDIV_SHIFT (3) /* Bits 3-5: Configures the pulse when FixPulseEn = 1 */
#define UART_ICR_PULSEDIV_MASK (7 << UART_ICR_PULSEDIV_SHIFT)
# define UART_ICR_PULSEDIV_2TPCLK (0 << UART_ICR_PULSEDIV_SHIFT) /* 2 x TPCLK */
# define UART_ICR_PULSEDIV_4TPCLK (1 << UART_ICR_PULSEDIV_SHIFT) /* 4 x TPCLK */
# define UART_ICR_PULSEDIV_8TPCLK (2 << UART_ICR_PULSEDIV_SHIFT) /* 8 x TPCLK */
# define UART_ICR_PULSEDIV_16TPCLK (3 << UART_ICR_PULSEDIV_SHIFT) /* 16 x TPCLK */
# define UART_ICR_PULSEDIV_32TPCLK (4 << UART_ICR_PULSEDIV_SHIFT) /* 32 x TPCLK */
# define UART_ICR_PULSEDIV_64TPCLK (5 << UART_ICR_PULSEDIV_SHIFT) /* 64 x TPCLK */
# define UART_ICR_PULSEDIV_128TPCLK (6 << UART_ICR_PULSEDIV_SHIFT) /* 128 x TPCLK */
# define UART_ICR_PULSEDIV_256TPCLK (7 << UART_ICR_PULSEDIV_SHIFT) /* 246 x TPCLK */
/* Bits 6-31: Reserved */
/* FDR Fractional Divider Register (all) */
#define UART_FDR_DIVADDVAL_SHIFT (0) /* Bits 0-3: Baud-rate generation pre-scaler divisor value */
#define UART_FDR_DIVADDVAL_MASK (15 << UART_FDR_DIVADDVAL_SHIFT)
#define UART_FDR_MULVAL_SHIFT (3) /* Bits 4-7 Baud-rate pre-scaler multiplier value */
#define UART_FDR_MULVAL_MASK (15 << UART_FDR_MULVAL_SHIFT)
/* Bits 8-31: Reserved */
/* TER Transmit Enable Register (all) */
/* Bits 0-6: Reserved */
#define UART_TER_TXEN (1 << 7) /* Bit 7: TX Enable */
/* Bits 8-31: Reserved */
/* RS-485/EIA-485 Control (UART1 only) */
#define UART_RS485CTRL_NMMEN (1 << 0) /* Bit 0: RS-485/EIA-485 Normal Multidrop Mode (NMM) enabled */
#define UART_RS485CTRL_RXDIS (1 << 1) /* Bit 1: Receiver is disabled */
#define UART_RS485CTRL_AADEN (1 << 2) /* Bit 2: Auto Address Detect (AAD) is enabled */
#define UART_RS485CTRL_SEL (1 << 3) /* Bit 3: RTS/DTR used for direction control (DCTRL=1) */
#define UART_RS485CTRL_DCTRL (1 << 4) /* Bit 4: Enable Auto Direction Control */
#define UART_RS485CTRL_OINV (1 << 5) /* Bit 5: Polarity of the direction control signal on RTS/DTR */
/* Bits 6-31: Reserved */
/* RS-485/EIA-485 address match (UART1 only) */
#define UART_ADRMATCH_MASK (0xff) /* Bits 0-7: Address match value */
/* Bits 8-31: Reserved */
/* RS-485/EIA-485 direction control delay (UART1 only) */
#define UART_RS485DLY_MASK (0xff) /* Bits 0-7: Firection control (RTS/DTR) delay */
/* Bits 8-31: Reserved */
/* FIFOLVL FIFO Level register (all) */
#define UART_FIFOLVL_RX_SHIFT (0) /* Bits 0-3: Current level of the UART RX FIFO */
#define UART_FIFOLVL_RX_MASK (15 << UART_FIFOLVL_RX_SHIFT)
/* Bits 4-7: Reserved */
#define UART_FIFOLVL_TX_SHIFT (8) /* Bits 8-11: Current level of the UART TX FIFO */
#define UART_FIFOLVL_TX_MASK (15 << UART_FIFOLVL_TX_SHIFT)
/* Bits 12-31: Reserved */
/************************************************************************************
* Public Types
************************************************************************************/
/************************************************************************************
* Public Data
************************************************************************************/
/************************************************************************************
* Public Functions
************************************************************************************/
#endif /* __ARCH_ARM_SRC_LPC17XX_LPC17_UART_H */
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