rt-thread/bsp/lm3s/Libraries/inc/hw_epi.h

//*****************************************************************************
//
// hw_epi.h - Macros for use in accessing the EPI registers.
//
// Copyright (c) 2008-2009 Luminary Micro, Inc.  All rights reserved.
// Software License Agreement
// 
// Luminary Micro, Inc. (LMI) is supplying this software for use solely and
// exclusively on LMI's microcontroller products.
// 
// The software is owned by LMI and/or its suppliers, and is protected under
// applicable copyright laws.  All rights are reserved.  You may not combine
// this software with "viral" open-source software in order to form a larger
// program.  Any use in violation of the foregoing restrictions may subject
// the user to criminal sanctions under applicable laws, as well as to civil
// liability for the breach of the terms and conditions of this license.
// 
// THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED
// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
// 
// This is part of revision 4694 of the Stellaris Firmware Development Package.
//
//*****************************************************************************

#ifndef __HW_EPI_H__
#define __HW_EPI_H__

//*****************************************************************************
//
// The following are defines for the External Peripheral Interface (EPI)
//
//*****************************************************************************
#define EPI_O_CFG               0x00000000  // EPI Configuration
#define EPI_O_BAUD              0x00000004  // EPI Main Baud Rate
#define EPI_O_GPCFG             0x00000010  // EPI General Purpose
                                            // Configuration
#define EPI_O_SDRAMCFG          0x00000010  // EPI SDRAM Mode Configuration
#define EPI_O_HB8CFG            0x00000010  // EPI Host-Bus 8 Mode
                                            // Configuration
#define EPI_O_HB8CFG2           0x00000014  // EPI Host-Bus 8 Configuration 2
#define EPI_O_SDRAMCFG2         0x00000014  // EPI SDRAM Configuration 2
#define EPI_O_GPCFG2            0x00000014  // EPI General-Purpose
                                            // Configuration 2
#define EPI_O_ADDRMAP           0x0000001C  // EPI Address Map
#define EPI_O_RSIZE0            0x00000020  // EPI Read Size 0
#define EPI_O_RADDR0            0x00000024  // EPI Read Address 0
#define EPI_O_RPSTD0            0x00000028  // EPI Non-Blocking Read Data 0
#define EPI_O_RSIZE1            0x00000030  // EPI Read Size 1
#define EPI_O_RADDR1            0x00000034  // EPI Read Address 1
#define EPI_O_RPSTD1            0x00000038  // EPI Non-Blocking Read Data 1
#define EPI_O_STAT              0x00000060  // EPI Status
#define EPI_O_RFIFOCNT          0x0000006C  // EPI Read FIFO Count
#define EPI_O_READFIFO          0x00000070  // EPI Read FIFO
#define EPI_O_READFIFO1         0x00000074  // EPI Read FIFO Alias 1
#define EPI_O_READFIFO2         0x00000078  // EPI Read FIFO Alias 2
#define EPI_O_READFIFO3         0x0000007C  // EPI Read FIFO Alias 3
#define EPI_O_READFIFO4         0x00000080  // EPI Read FIFO Alias 4
#define EPI_O_READFIFO5         0x00000084  // EPI Read FIFO Alias 5
#define EPI_O_READFIFO6         0x00000088  // EPI Read FIFO Alias 6
#define EPI_O_READFIFO7         0x0000008C  // EPI Read FIFO Alias 7
#define EPI_O_FIFOLVL           0x00000200  // EPI FIFO Level Selects
#define EPI_O_WFIFOCNT          0x00000204  // EPI Write FIFO Count
#define EPI_O_IM                0x00000210  // EPI Interrupt Mask
#define EPI_O_RIS               0x00000214  // EPI Raw Interrupt Status
#define EPI_O_MIS               0x00000218  // EPI Masked Interrupt Status
#define EPI_O_EISC              0x0000021C  // EPI Error Interrupt Status and
                                            // Clear

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_CFG register.
//
//*****************************************************************************
#define EPI_CFG_BLKEN           0x00000010  // Block Enable.
#define EPI_CFG_MODE_M          0x0000000F  // Mode Select.
#define EPI_CFG_MODE_NONE       0x00000000  // None
#define EPI_CFG_MODE_SDRAM      0x00000001  // SDRAM
#define EPI_CFG_MODE_HB8        0x00000002  // 8-Bit Host-Bus (HB8)

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_BAUD register.
//
//*****************************************************************************
#define EPI_BAUD_COUNT_M        0x0000FFFF  // Baud Rate Counter.
#define EPI_BAUD_COUNT_S        0

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_SDRAMCFG register.
//
//*****************************************************************************
#define EPI_SDRAMCFG_FREQ_M     0xC0000000  // Frequency Range.
#define EPI_SDRAMCFG_FREQ_NONE  0x00000000  // 0
#define EPI_SDRAMCFG_FREQ_15MHZ 0x40000000  // 15
#define EPI_SDRAMCFG_FREQ_30MHZ 0x80000000  // 30
#define EPI_SDRAMCFG_FREQ_50MHZ 0xC0000000  // 50
#define EPI_SDRAMCFG_RFSH_M     0x07FF0000  // Refresh Counter.
#define EPI_SDRAMCFG_SLEEP      0x00000200  // Sleep Mode.
#define EPI_SDRAMCFG_SIZE_M     0x00000003  // Size of SDRAM.
#define EPI_SDRAMCFG_SIZE_8MB   0x00000000  // 64Mb (8MB)
#define EPI_SDRAMCFG_SIZE_16MB  0x00000001  // 128Mb (16MB)
#define EPI_SDRAMCFG_SIZE_32MB  0x00000002  // 256Mb (32MB)
#define EPI_SDRAMCFG_SIZE_64MB  0x00000003  // 512Mb (64MB)
#define EPI_SDRAMCFG_RFSH_S     16

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_GPCFG register.
//
//*****************************************************************************
#define EPI_GPCFG_CLKPIN        0x80000000  // Clock Pin.
#define EPI_GPCFG_CLKGATE       0x40000000  // Clock Gated.
#define EPI_GPCFG_RDYEN         0x10000000  // Ready Enable.
#define EPI_GPCFG_FRMPIN        0x08000000  // Framing Pin.
#define EPI_GPCFG_FRM50         0x04000000  // 50/50 Frame.
#define EPI_GPCFG_FRMCNT_M      0x03C00000  // Frame Count.
#define EPI_GPCFG_RW            0x00200000  // Read and Write.
#define EPI_GPCFG_WR2CYC        0x00080000  // 2-Cycle Writes.
#define EPI_GPCFG_RD2CYC        0x00040000  // 2-Cycle Reads.
#define EPI_GPCFG_MAXWAIT_M     0x0000FF00  // Maximum Wait.
#define EPI_GPCFG_ASIZE_M       0x00000030  // Address Bus Size.
#define EPI_GPCFG_ASIZE_NONE    0x00000000  // No address
#define EPI_GPCFG_ASIZE_4BIT    0x00000010  // 4 Bits Wide (EPI24 to EPI27)
#define EPI_GPCFG_ASIZE_12BIT   0x00000020  // 12 Bits Wide (EPI16 to EPI27).
                                            // Cannot be used with 24-bit data
#define EPI_GPCFG_ASIZE_20BIT   0x00000030  // 20 Bits Wide
#define EPI_GPCFG_DSIZE_M       0x00000003  // Size of Data Bus.
#define EPI_GPCFG_DSIZE_4BIT    0x00000000  // 4 Bits Wide (EPI0 to EPI7)
#define EPI_GPCFG_DSIZE_16BIT   0x00000001  // 16 Bits Wide (EPI0 to EPI15)
#define EPI_GPCFG_DSIZE_24BIT   0x00000002  // 24 Bits Wide (EPI0 to EPI23)
#define EPI_GPCFG_DSIZE_32BIT   0x00000003  // 32 Bits Wide. May not be used
                                            // with clock (EPI0 to EPI31). This
                                            // value is normally used for
                                            // acquisition input and actuator
                                            // control as well as other general
                                            // purpose uses.
#define EPI_GPCFG_FRMCNT_S      22
#define EPI_GPCFG_MAXWAIT_S     8

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_HB8CFG register.
//
//*****************************************************************************
#define EPI_HB8CFG_XFFEN        0x00800000  // External FIFO FULL Enable.
#define EPI_HB8CFG_XFEEN        0x00400000  // External FIFO EMPTY Enable.
#define EPI_HB8CFG_WRHIGH       0x00200000  // WRITE Strobe Polarity.
#define EPI_HB8CFG_RDHIGH       0x00100000  // READ Strobe Polarity.
#define EPI_HB8CFG_MAXWAIT_M    0x0000FF00  // Maximum Wait.
#define EPI_HB8CFG_WRWS_M       0x000000C0  // Write Wait States.
#define EPI_HB8CFG_WRWS_0       0x00000000  // No wait states
#define EPI_HB8CFG_WRWS_1       0x00000040  // 1 wait state
#define EPI_HB8CFG_WRWS_2       0x00000080  // 2 wait states
#define EPI_HB8CFG_WRWS_3       0x000000C0  // 3 wait states
#define EPI_HB8CFG_RDWS_M       0x00000030  // Read Wait States.
#define EPI_HB8CFG_RDWS_0       0x00000000  // No wait states
#define EPI_HB8CFG_RDWS_1       0x00000010  // 1 wait state
#define EPI_HB8CFG_RDWS_2       0x00000020  // 2 wait states
#define EPI_HB8CFG_RDWS_3       0x00000030  // 3 wait states
#define EPI_HB8CFG_MODE_M       0x00000003  // Host Bus Sub-Mode.
#define EPI_HB8CFG_MODE_MUX     0x00000000  // ADMUX - AD[7:0]
#define EPI_HB8CFG_MODE_NMUX    0x00000001  // ADNONMUX - D[7:0]
#define EPI_HB8CFG_MODE_SRAM    0x00000002  // SRAM
#define EPI_HB8CFG_MODE_FIFO    0x00000003  // FIFO - D[7:0]
#define EPI_HB8CFG_MAXWAIT_S    8

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_ADDRMAP register.
//
//*****************************************************************************
#define EPI_ADDRMAP_EPSZ_M      0x000000C0  // External Peripheral Size.
#define EPI_ADDRMAP_EPSZ_256B   0x00000000  // 0x100 (256)
#define EPI_ADDRMAP_EPSZ_64KB   0x00000040  // 0x10000 (64 KB)
#define EPI_ADDRMAP_EPSZ_16MB   0x00000080  // 0x1000000 (16 MB)
#define EPI_ADDRMAP_EPSZ_512MB  0x000000C0  // 0x20000000 (512 MB)
#define EPI_ADDRMAP_EPADR_M     0x00000030  // External Peripheral Address.
#define EPI_ADDRMAP_EPADR_NONE  0x00000000  // Not mapped
#define EPI_ADDRMAP_EPADR_A000  0x00000010  // At 0xA0000000
#define EPI_ADDRMAP_EPADR_C000  0x00000020  // At 0xC0000000
#define EPI_ADDRMAP_ERSZ_M      0x0000000C  // External RAM Size.
#define EPI_ADDRMAP_ERSZ_256B   0x00000000  // 0x100 (256)
#define EPI_ADDRMAP_ERSZ_64KB   0x00000004  // 0x10000 (64KB)
#define EPI_ADDRMAP_ERSZ_16MB   0x00000008  // 0x1000000 (16MB)
#define EPI_ADDRMAP_ERSZ_512MB  0x0000000C  // 0x20000000 (512MB)
#define EPI_ADDRMAP_ERADR_M     0x00000003  // External RAM Address.
#define EPI_ADDRMAP_ERADR_NONE  0x00000000  // Not mapped
#define EPI_ADDRMAP_ERADR_6000  0x00000001  // At 0x60000000
#define EPI_ADDRMAP_ERADR_8000  0x00000002  // At 0x80000000

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_RSIZE0 register.
//
//*****************************************************************************
#define EPI_RSIZE0_SIZE_M       0x00000003  // Current Size.
#define EPI_RSIZE0_SIZE_8BIT    0x00000001  // Byte (8 bits)
#define EPI_RSIZE0_SIZE_16BIT   0x00000002  // Half-word (16 bits)
#define EPI_RSIZE0_SIZE_32BIT   0x00000003  // Word (32 bits)

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_RADDR0 register.
//
//*****************************************************************************
#define EPI_RADDR0_ADDR_M       0x1FFFFFFF  // Current Address.
#define EPI_RADDR0_ADDR_S       0

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_RPSTD0 register.
//
//*****************************************************************************
#define EPI_RPSTD0_POSTCNT_M    0x00001FFF  // Post Count.
#define EPI_RPSTD0_POSTCNT_S    0

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_RSIZE1 register.
//
//*****************************************************************************
#define EPI_RSIZE1_SIZE_M       0x00000003  // Current Size.
#define EPI_RSIZE1_SIZE_8BIT    0x00000001  // Byte (8 bits)
#define EPI_RSIZE1_SIZE_16BIT   0x00000002  // Half-word (16 bits)
#define EPI_RSIZE1_SIZE_32BIT   0x00000003  // Word (32 bits)

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_RADDR1 register.
//
//*****************************************************************************
#define EPI_RADDR1_ADDR_M       0x1FFFFFFF  // Current Address.
#define EPI_RADDR1_ADDR_S       0

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_RPSTD1 register.
//
//*****************************************************************************
#define EPI_RPSTD1_POSTCNT_M    0x00001FFF  // Post Count.
#define EPI_RPSTD1_POSTCNT_S    0

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_RFIFOCNT register.
//
//*****************************************************************************
#define EPI_RFIFOCNT_COUNT_M    0x00000007  // FIFO Count.
#define EPI_RFIFOCNT_COUNT_S    0

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_READFIFO register.
//
//*****************************************************************************
#define EPI_READFIFO_DATA_M     0xFFFFFFFF  // Reads Data.
#define EPI_READFIFO_DATA_S     0

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_READFIFO1
// register.
//
//*****************************************************************************
#define EPI_READFIFO1_DATA_M    0xFFFFFFFF  // Reads Data.
#define EPI_READFIFO1_DATA_S    0

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_READFIFO2
// register.
//
//*****************************************************************************
#define EPI_READFIFO2_DATA_M    0xFFFFFFFF  // Reads Data.
#define EPI_READFIFO2_DATA_S    0

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_READFIFO3
// register.
//
//*****************************************************************************
#define EPI_READFIFO3_DATA_M    0xFFFFFFFF  // Reads Data.
#define EPI_READFIFO3_DATA_S    0

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_READFIFO4
// register.
//
//*****************************************************************************
#define EPI_READFIFO4_DATA_M    0xFFFFFFFF  // Reads Data.
#define EPI_READFIFO4_DATA_S    0

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_READFIFO5
// register.
//
//*****************************************************************************
#define EPI_READFIFO5_DATA_M    0xFFFFFFFF  // Reads Data.
#define EPI_READFIFO5_DATA_S    0

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_READFIFO6
// register.
//
//*****************************************************************************
#define EPI_READFIFO6_DATA_M    0xFFFFFFFF  // Reads Data.
#define EPI_READFIFO6_DATA_S    0

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_READFIFO7
// register.
//
//*****************************************************************************
#define EPI_READFIFO7_DATA_M    0xFFFFFFFF  // Reads Data.
#define EPI_READFIFO7_DATA_S    0

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_FIFOLVL register.
//
//*****************************************************************************
#define EPI_FIFOLVL_WFERR       0x00020000  // Write Full Error.
#define EPI_FIFOLVL_RSERR       0x00010000  // Read Stall Error.
#define EPI_FIFOLVL_WRFIFO_M    0x00000070  // Write FIFO.
#define EPI_FIFOLVL_WRFIFO_EMPT 0x00000000  // Empty
#define EPI_FIFOLVL_WRFIFO_1_4  0x00000020  // >= 1/4 full
#define EPI_FIFOLVL_WRFIFO_1_2  0x00000030  // >= 1/2 full
#define EPI_FIFOLVL_WRFIFO_3_4  0x00000040  // >= 3/4 full
#define EPI_FIFOLVL_RDFIFO_M    0x00000007  // Read FIFO.
#define EPI_FIFOLVL_RDFIFO_EMPT 0x00000000  // Empty
#define EPI_FIFOLVL_RDFIFO_1_8  0x00000001  // <= 1/8 full
#define EPI_FIFOLVL_RDFIFO_1_4  0x00000002  // <= 1/4 full
#define EPI_FIFOLVL_RDFIFO_1_2  0x00000003  // <= 1/2 full
#define EPI_FIFOLVL_RDFIFO_3_4  0x00000004  // <= 3/4 full
#define EPI_FIFOLVL_RDFIFO_7_8  0x00000005  // <= 7/8 full
#define EPI_FIFOLVL_RDFIFO_FULL 0x00000006  // Trigger when there are 8 entries
                                            // in the NBRFIFO.

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_IM register.
//
//*****************************************************************************
#define EPI_IM_WRIM             0x00000004  // Write Interrupt Mask.
#define EPI_IM_RDIM             0x00000002  // Read Interrupt Mask.
#define EPI_IM_ERRIM            0x00000001  // Error Interrupt Mask.

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_RIS register.
//
//*****************************************************************************
#define EPI_RIS_WRRIS           0x00000004  // Write Raw Interrupt Status.
#define EPI_RIS_RDRIS           0x00000002  // Read Raw Interrupt Status.
#define EPI_RIS_ERRRIS          0x00000001  // Error Raw Interrupt Status.

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_MIS register.
//
//*****************************************************************************
#define EPI_MIS_WRMIS           0x00000004  // Write Masked Interrupt Status.
#define EPI_MIS_RDMIS           0x00000002  // Read Masked Interrupt Status.
#define EPI_MIS_ERRMIS          0x00000001  // Error Masked Interrupt Status.

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_SDRAMCFG2
// register.
//
//*****************************************************************************
#define EPI_SDRAMCFG2_RCM       0x80000000  // Read Capture Mode.

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_HB8CFG2 register.
//
//*****************************************************************************
#define EPI_HB8CFG2_WORD        0x80000000  // Word Access Mode.
#define EPI_HB8CFG2_CSCFG       0x01000000  // Chip Select Configuration.

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_GPCFG2 register.
//
//*****************************************************************************
#define EPI_GPCFG2_WORD         0x80000000  // Word Access Mode.

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_STAT register.
//
//*****************************************************************************
#define EPI_STAT_CELOW          0x00000200  // Clock Enable Low.
#define EPI_STAT_XFFULL         0x00000100  // External FIFO Full.
#define EPI_STAT_XFEMPTY        0x00000080  // External FIFO Empty.
#define EPI_STAT_INITSEQ        0x00000040  // Initialization Sequence.
#define EPI_STAT_WBUSY          0x00000020  // Write Busy.
#define EPI_STAT_NBRBUSY        0x00000010  // Non-Blocking Read Busy.
#define EPI_STAT_ACTIVE         0x00000001  // Register Active.

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_WFIFOCNT register.
//
//*****************************************************************************
#define EPI_WFIFOCNT_WTAV_M     0x00000007  // Available Write Transactions.
#define EPI_WFIFOCNT_WTAV_S     0

//*****************************************************************************
//
// The following are defines for the bit fields in the EPI_O_EISC register.
//
//*****************************************************************************
#define EPI_EISC_WTFULL         0x00000004  // Write FIFO Full Error.
#define EPI_EISC_RSTALL         0x00000002  // Read Stalled Error.
#define EPI_EISC_TOUT           0x00000001  // Timeout Error.

#endif // __HW_EPI_H__