4 * This file is part of BeRTOS.
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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29 * Copyright 2009 Develer S.r.l. (http://www.develer.com/)
35 * \author Luca Ottaviano <lottaviano@develer.com>
37 * AT91SAM7 SSC register definitions.
38 * This file is based on NUT/OS implementation. See license below.
42 * Copyright (C) 2006-2007 by egnite Software GmbH. All rights reserved.
44 * Redistribution and use in source and binary forms, with or without
45 * modification, are permitted provided that the following conditions
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70 * For additional information see http://www.ethernut.de/
76 #include <io/at91sam7.h>
79 * SSC Control Register
82 #define SSC_CR_OFF 0x00000000 ///< Control register offset.
84 #define SSC_RXEN 0 ///< Receive enable.
85 #define SSC_RXDIS 1 ///< Receive disable.
86 #define SSC_TXEN 8 ///< Transmit enable.
87 #define SSC_TXDIS 9 ///< Transmit disable.
88 #define SSC_SWRST 15 ///< Software reset.
92 * SSC Clock Mode Register
95 #define SSC_CMR_OFF 0x00000004 ///< Clock mode register offset.
97 #define SSC_DIV_MASK 0x00000FFF ///< Clock divider.
101 * SSC Receive/Transmit Clock Mode Register
104 #define SSC_RCMR_OFF 0x00000010 ///< Receive clock mode register offset.
105 #define SSC_TCMR_OFF 0x00000018 ///< Transmit clock mode register offset.
107 #define SSC_CKS_MASK 0x00000003 ///< Receive clock selection.
108 #define SSC_CKS_DIV 0x00000000 ///< Divided clock.
109 #define SSC_CKS_CLK 0x00000001 ///< RK/TK clock signal.
110 #define SSC_CKS_PIN 0x00000002 ///< TK/RK pin.
111 #define SSC_CKO_MASK 0x0000001C ///< Receive clock output mode selection.
112 #define SSC_CKO_NONE 0x00000000 ///< None.
113 #define SSC_CKO_CONT 0x00000004 ///< Continous receive clock.
114 #define SSC_CKO_TRAN 0x00000008 ///< Receive clock only during data transfers.
115 #define SSC_CKI 5 ///< Receive clock inversion.
116 #define SSC_CKG_MASK 0x000000C0 ///< Receive clock gating selection.
117 #define SSC_CKG_NONE 0x00000000 ///< None, continous clock.
118 #define SSC_CKG_FL 0x00000040 ///< Continous receive clock.
119 #define SSC_CKG_FH 0x00000080 ///< Receive clock only during data transfers.
120 #define SSC_START_MASK 0x00000F00 ///< Receive start selection.
121 #define SSC_START_CONT 0x00000000 ///< Receive start as soon as enabled.
122 #define SSC_START_TX 0x00000100 ///< Receive start on transmit start.
123 #define SSC_START_RX 0x00000100 ///< Receive start on receive start.
124 #define SSC_START_LOW_F 0x00000200 ///< Receive start on low level RF.
125 #define SSC_START_HIGH_F 0x00000300 ///< Receive start on high level RF.
126 #define SSC_START_FALL_F 0x00000400 ///< Receive start on falling edge RF.
127 #define SSC_START_RISE_F 0x00000500 ///< Receive start on rising edge RF.
128 #define SSC_START_LEVEL_F 0x00000600 ///< Receive start on any RF level change.
129 #define SSC_START_EDGE_F 0x00000700 ///< Receive start on any RF edge.
130 #define SSC_START_COMP0 0x00000800 ///< Receive on compare 0.
131 #define SSC_STOP 12 ///< Receive stop selection.
132 #define SSC_STTDLY_MASK 0x00FF0000 ///< Receive start delay.
133 #define SSC_STTDLY_SHIFT 16 ///< Least significant bit of receive start delay.
134 #define SSC_PERIOD_MASK 0xFF000000 ///< Receive period divider selection.
135 #define SSC_PERIOD_SHIFT 24 ///< Least significant bit of receive period divider selection.
139 * SSC Receive/Transmit Frame Mode Registers
142 #define SSC_RFMR_OFF 0x00000014 ///< Receive frame mode register offset.
143 #define SSC_TFMR_OFF 0x0000001C ///< Transmit frame mode register offset.
145 #define SSC_DATLEN_MASK 0x0000001F ///< Data length.
146 #define SSC_LOOP 5 ///< Receiver loop mode.
147 #define SSC_DATDEF 5 ///< Transmit default value.
149 #define SSC_MSBF 7 ///< Most significant bit first.
150 #define SSC_DATNB_MASK 0x00000F00 ///< Data number per frame.
151 #define SSC_DATNB_SHIFT 8 ///< Least significant bit of data number per frame.
152 #define SSC_FSLEN_MASK 0x000F0000 ///< Receive frame sync. length.
153 #define SSC_FSLEN_SHIFT 16 ///< Least significant bit of receive frame sync. length.
154 #define SSC_FSOS 0x00700000 ///< Receive frame sync. output selection.
155 #define SSC_FSOS_NONE 0x00000000 ///< No frame sync. Line set to input.
156 #define SSC_FSOS_NEGATIVE 0x00100000 ///< Negative pulse.
157 #define SSC_FSOS_POSITIVE 0x00200000 ///< Positive pulse.
158 #define SSC_FSOS_LOW 0x00300000 ///< Low during transfer.
159 #define SSC_FSOS_HIGH 0x00400000 ///< High during transfer.
160 #define SSC_FSOS_TOGGLE 0x00500000 ///< Toggling at each start.
161 #define SSC_FSDEN 23 ///< Frame sync. data enable.
162 #define SSC_FSEDGE 24 ///< Frame sync. edge detection.
166 * SSC Receive Holding Register
169 #define SSC_RHR_OFF 0x00000020 ///< Receive holding register offset.
173 * SSC Transmit Holding Register
176 #define SSC_THR_OFF 0x00000024 ///< Transmit holding register offset.
180 * SSC Receive Sync. Holding Register
183 #define SSC_RSHR_OFF 0x00000030 ///< Receive sync. holding register offset.
187 * SSC Transmit Sync. Holding Register
190 #define SSC_TSHR_OFF 0x00000034 ///< Transmit sync. holding register offset.
194 * SSC Receive Compare 0 Register
197 #define SSC_RC0R_OFF 0x00000038 ///< Receive compare 0 register offset.
201 * SSC Receive Compare 1 Register
204 #define SSC_RC1R_OFF 0x0000003C ///< Receive compare 1 register offset.
208 * SSC Status and Interrupt Register
211 #define SSC_SR_OFF 0x00000040 ///< Status register offset.
212 #define SSC_IER_OFF 0x00000044 ///< Interrupt enable register offset.
213 #define SSC_IDR_OFF 0x00000048 ///< Interrupt disable register offset.
214 #define SSC_IMR_OFF 0x0000004C ///< Interrupt mask register offset.
216 #define SSC_TXRDY 0 ///< Transmit ready.
217 #define SSC_TXEMPTY 1 ///< Transmit empty.
218 #define SSC_ENDTX 2 ///< End of transmission.
219 #define SSC_TXBUFE 3 ///< Transmit buffer empty.
220 #define SSC_RXRDY 4 ///< Receive ready.
221 #define SSC_OVRUN 5 ///< Receive overrun.
222 #define SSC_ENDRX 6 ///< End of receiption.
223 #define SSC_RXBUFF 7 ///< Receive buffer full.
224 #define SSC_CP0 8 ///< Compare 0.
225 #define SSC_CP1 9 ///< Compare 1.
226 #define SSC_TXSYN 10 ///< Transmit sync.
227 #define SSC_RXSYN 11 ///< Receive sync.
228 #define SSC_TXENA 16 ///< Transmit enable.
229 #define SSC_RXENA 17 ///< Receive enable.
232 #if defined(SSC_BASE)
233 #define SSC_CR (*((reg32_t *)(SSC_BASE + SSC_CR_OFF))) ///< Control register address.
234 #define SSC_CMR (*((reg32_t *)(SSC_BASE + SSC_CMR_OFF))) ///< Clock mode register address.
235 #define SSC_RCMR (*((reg32_t *)(SSC_BASE + SSC_RCMR_OFF))) ///< Receive clock mode register address.
236 #define SSC_TCMR (*((reg32_t *)(SSC_BASE + SSC_TCMR_OFF))) ///< Transmit clock mode register address.
237 #define SSC_RFMR (*((reg32_t *)(SSC_BASE + SSC_RFMR_OFF))) ///< Receive frame mode register address.
238 #define SSC_TFMR (*((reg32_t *)(SSC_BASE + SSC_TFMR_OFF))) ///< Transmit frame mode register address.
239 #define SSC_RHR (*((reg32_t *)(SSC_BASE + SSC_RHR_OFF))) ///< Receive holding register address.
240 #define SSC_THR (*((reg32_t *)(SSC_BASE + SSC_THR_OFF))) ///< Transmit holding register address.
241 #define SSC_RSHR (*((reg32_t *)(SSC_BASE + SSC_RSHR_OFF))) ///< Receive sync. holding register address.
242 #define SSC_TSHR (*((reg32_t *)(SSC_BASE + SSC_TSHR_OFF))) ///< Transmit sync. holding register address.
243 #define SSC_RC0R (*((reg32_t *)(SSC_BASE + SSC_RC0R_OFF))) ///< Receive compare 0 register address.
244 #define SSC_RC1R (*((reg32_t *)(SSC_BASE + SSC_RC1R_OFF))) ///< Receive compare 1 register address.
245 #define SSC_SR (*((reg32_t *)(SSC_BASE + SSC_SR_OFF))) ///< Status register address.
246 #define SSC_IER (*((reg32_t *)(SSC_BASE + SSC_IER_OFF))) ///< Interrupt enable register address.
247 #define SSC_IDR (*((reg32_t *)(SSC_BASE + SSC_IDR_OFF))) ///< Interrupt disable register address.
248 #define SSC_IMR (*((reg32_t *)(SSC_BASE + SSC_IMR_OFF))) ///< Interrupt mask register address.
249 #if defined(SSC_HAS_PDC)
250 #define SSC_RPR (*((reg32_t *)(SSC_BASE + PERIPH_RPR_OFF))) ///< PDC receive pointer register address.
251 #define SSC_RCR (*((reg32_t *)(SSC_BASE + PERIPH_RCR_OFF))) ///< PDC receive counter register address.
252 #define SSC_TPR (*((reg32_t *)(SSC_BASE + PERIPH_TPR_OFF))) ///< PDC transmit pointer register address.
253 #define SSC_TCR (*((reg32_t *)(SSC_BASE + PERIPH_TCR_OFF))) ///< PDC transmit counter register address.
254 #define SSC_RNPR (*((reg32_t *)(SSC_BASE + PERIPH_RNPR_OFF))) ///< PDC receive next pointer register address.
255 #define SSC_RNCR (*((reg32_t *)(SSC_BASE + PERIPH_RNCR_OFF))) ///< PDC receive next counter register address.
256 #define SSC_TNPR (*((reg32_t *)(SSC_BASE + PERIPH_TNPR_OFF))) ///< PDC transmit next pointer register address.
257 #define SSC_TNCR (*((reg32_t *)(SSC_BASE + PERIPH_TNCR_OFF))) ///< PDC transmit next counter register address.
258 #define SSC_PTCR (*((reg32_t *)(SSC_BASE + PERIPH_PTCR_OFF))) ///< PDC transfer control register address.
259 #define SSC_PTSR (*((reg32_t *)(SSC_BASE + PERIPH_PTSR_OFF))) ///< PDC transfer status register address.
260 #endif /* SSC_HAS_PDC */
262 #endif /* SSC_BASE */
265 #endif /* AT91_SSC_H */