//***************************************************************************** | |
// | |
// hw_ssi.h - Macros used when accessing the SSI hardware. | |
// | |
// Copyright (c) 2005,2006 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 Stellaris Family of microcontroller products. | |
// | |
// The software is owned by LMI and/or its suppliers, and is protected under | |
// applicable copyright laws. All rights are reserved. 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 523 of the Stellaris Driver Library. | |
// | |
//***************************************************************************** | |
#ifndef __HW_SSI_H__ | |
#define __HW_SSI_H__ | |
//***************************************************************************** | |
// | |
// The following define the offsets of the SSI registers. | |
// | |
//***************************************************************************** | |
#define SSI_O_CR0 0x00000000 // Control register 0 | |
#define SSI_O_CR1 0x00000004 // Control register 1 | |
#define SSI_O_DR 0x00000008 // Data register | |
#define SSI_O_SR 0x0000000C // Status register | |
#define SSI_O_CPSR 0x00000010 // Clock prescale register | |
#define SSI_O_IM 0x00000014 // Int mask set and clear register | |
#define SSI_O_RIS 0x00000018 // Raw interrupt register | |
#define SSI_O_MIS 0x0000001C // Masked interrupt register | |
#define SSI_O_ICR 0x00000020 // Interrupt clear register | |
//***************************************************************************** | |
// | |
// The following define the bit fields in the SSI Control register 0. | |
// | |
//***************************************************************************** | |
#define SSI_CR0_SCR 0x0000FF00 // Serial clock rate | |
#define SSI_CR0_SPH 0x00000080 // SSPCLKOUT phase | |
#define SSI_CR0_SPO 0x00000040 // SSPCLKOUT polarity | |
#define SSI_CR0_FRF_MASK 0x00000030 // Frame format mask | |
#define SSI_CR0_FRF_MOTO 0x00000000 // Motorola SPI frame format | |
#define SSI_CR0_FRF_TI 0x00000010 // TI sync serial frame format | |
#define SSI_CR0_FRF_NMW 0x00000020 // National Microwire frame format | |
#define SSI_CR0_DSS 0x0000000F // Data size select | |
#define SSI_CR0_DSS_4 0x00000003 // 4 bit data | |
#define SSI_CR0_DSS_5 0x00000004 // 5 bit data | |
#define SSI_CR0_DSS_6 0x00000005 // 6 bit data | |
#define SSI_CR0_DSS_7 0x00000006 // 7 bit data | |
#define SSI_CR0_DSS_8 0x00000007 // 8 bit data | |
#define SSI_CR0_DSS_9 0x00000008 // 9 bit data | |
#define SSI_CR0_DSS_10 0x00000009 // 10 bit data | |
#define SSI_CR0_DSS_11 0x0000000A // 11 bit data | |
#define SSI_CR0_DSS_12 0x0000000B // 12 bit data | |
#define SSI_CR0_DSS_13 0x0000000C // 13 bit data | |
#define SSI_CR0_DSS_14 0x0000000D // 14 bit data | |
#define SSI_CR0_DSS_15 0x0000000E // 15 bit data | |
#define SSI_CR0_DSS_16 0x0000000F // 16 bit data | |
//***************************************************************************** | |
// | |
// The following define the bit fields in the SSI Control register 1. | |
// | |
//***************************************************************************** | |
#define SSI_CR1_SOD 0x00000008 // Slave mode output disable | |
#define SSI_CR1_MS 0x00000004 // Master or slave mode select | |
#define SSI_CR1_SSE 0x00000002 // Sync serial port enable | |
#define SSI_CR1_LBM 0x00000001 // Loopback mode | |
//***************************************************************************** | |
// | |
// The following define the bit fields in the SSI Status register | |
// | |
//***************************************************************************** | |
#define SSI_SR_BSY 0x00000010 // SSI busy | |
#define SSI_SR_RFF 0x00000008 // RX FIFO full | |
#define SSI_SR_RNE 0x00000004 // RX FIFO not empty | |
#define SSI_SR_TNF 0x00000002 // TX FIFO not full | |
#define SSI_SR_TFE 0x00000001 // TX FIFO empty | |
//***************************************************************************** | |
// | |
// The following define information concerning the SSI Data register. | |
// | |
//***************************************************************************** | |
#define TX_FIFO_SIZE (8) // Number of entries in the TX FIFO | |
#define RX_FIFO_SIZE (8) // Number of entries in the RX FIFO | |
//***************************************************************************** | |
// | |
// The following define the bit fields in the interrupt mask set and clear, | |
// raw interrupt, masked interrupt, and interrupt clear registers. | |
// | |
//***************************************************************************** | |
#define SSI_INT_TXFF 0x00000008 // TX FIFO interrupt | |
#define SSI_INT_RXFF 0x00000004 // RX FIFO interrupt | |
#define SSI_INT_RXTO 0x00000002 // RX timeout interrupt | |
#define SSI_INT_RXOR 0x00000001 // RX overrun interrupt | |
#endif // __HW_SSI_H__ |