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TARGET_SAMD21G18A/TOOLCHAIN_ARM_STD/pinmux.h@172:65be27845400, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 20:53:29 2019 +0000
Revision:
172:65be27845400
Parent:
171:3a7713b1edbc 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Kojto 111:4336505e4b1c 1 /**
Kojto 111:4336505e4b1c 2 * \file
Kojto 111:4336505e4b1c 3 *
Kojto 111:4336505e4b1c 4 * \brief SAM Pin Multiplexer Driver
Kojto 111:4336505e4b1c 5 *
Kojto 111:4336505e4b1c 6 * Copyright (C) 2012-2015 Atmel Corporation. All rights reserved.
Kojto 111:4336505e4b1c 7 *
Kojto 111:4336505e4b1c 8 * \asf_license_start
Kojto 111:4336505e4b1c 9 *
Kojto 111:4336505e4b1c 10 * \page License
Kojto 111:4336505e4b1c 11 *
Kojto 111:4336505e4b1c 12 * Redistribution and use in source and binary forms, with or without
Kojto 111:4336505e4b1c 13 * modification, are permitted provided that the following conditions are met:
Kojto 111:4336505e4b1c 14 *
Kojto 111:4336505e4b1c 15 * 1. Redistributions of source code must retain the above copyright notice,
Kojto 111:4336505e4b1c 16 * this list of conditions and the following disclaimer.
Kojto 111:4336505e4b1c 17 *
Kojto 111:4336505e4b1c 18 * 2. Redistributions in binary form must reproduce the above copyright notice,
Kojto 111:4336505e4b1c 19 * this list of conditions and the following disclaimer in the documentation
Kojto 111:4336505e4b1c 20 * and/or other materials provided with the distribution.
Kojto 111:4336505e4b1c 21 *
Kojto 111:4336505e4b1c 22 * 3. The name of Atmel may not be used to endorse or promote products derived
Kojto 111:4336505e4b1c 23 * from this software without specific prior written permission.
Kojto 111:4336505e4b1c 24 *
Kojto 111:4336505e4b1c 25 * 4. This software may only be redistributed and used in connection with an
Kojto 111:4336505e4b1c 26 * Atmel microcontroller product.
Kojto 111:4336505e4b1c 27 *
Kojto 111:4336505e4b1c 28 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
Kojto 111:4336505e4b1c 29 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
Kojto 111:4336505e4b1c 30 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
Kojto 111:4336505e4b1c 31 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
Kojto 111:4336505e4b1c 32 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
Kojto 111:4336505e4b1c 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
Kojto 111:4336505e4b1c 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
Kojto 111:4336505e4b1c 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
Kojto 111:4336505e4b1c 36 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
Kojto 111:4336505e4b1c 37 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
Kojto 111:4336505e4b1c 38 * POSSIBILITY OF SUCH DAMAGE.
Kojto 111:4336505e4b1c 39 *
Kojto 111:4336505e4b1c 40 * \asf_license_stop
Kojto 111:4336505e4b1c 41 *
Kojto 111:4336505e4b1c 42 */
Kojto 111:4336505e4b1c 43 /*
Kojto 111:4336505e4b1c 44 * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
Kojto 111:4336505e4b1c 45 */
Kojto 111:4336505e4b1c 46 #ifndef PINMUX_H_INCLUDED
Kojto 111:4336505e4b1c 47 #define PINMUX_H_INCLUDED
Kojto 111:4336505e4b1c 48
Kojto 111:4336505e4b1c 49 /**
Kojto 111:4336505e4b1c 50 * \defgroup asfdoc_sam0_system_pinmux_group SAM System Pin Multiplexer Driver (SYSTEM PINMUX)
Kojto 111:4336505e4b1c 51 *
Kojto 111:4336505e4b1c 52 * This driver for Atmel&reg; | SMART SAM devices provides an interface for the
Kojto 111:4336505e4b1c 53 * configuration and management of the device's physical I/O Pins, to alter the
Kojto 111:4336505e4b1c 54 * direction and input/drive characteristics as well as to configure the pin
Kojto 111:4336505e4b1c 55 * peripheral multiplexer selection.
Kojto 111:4336505e4b1c 56 *
Kojto 111:4336505e4b1c 57 * The following peripherals are used by this module:
Kojto 111:4336505e4b1c 58 * - PORT (Port I/O Management)
Kojto 111:4336505e4b1c 59 *
Kojto 111:4336505e4b1c 60 * The following devices can use this module:
Kojto 111:4336505e4b1c 61 * - Atmel | SMART SAM D20/D21
Kojto 111:4336505e4b1c 62 * - Atmel | SMART SAM R21
Kojto 111:4336505e4b1c 63 * - Atmel | SMART SAM D10/D11
Kojto 111:4336505e4b1c 64 * - Atmel | SMART SAM L21
Kojto 111:4336505e4b1c 65 * - Atmel | SMART SAM DAx
Kojto 111:4336505e4b1c 66 * - Atmel | SMART SAM C20/C21
Kojto 111:4336505e4b1c 67 *
Kojto 111:4336505e4b1c 68 * Physically, the modules are interconnected within the device as shown in the
Kojto 111:4336505e4b1c 69 * following diagram:
Kojto 111:4336505e4b1c 70 *
Kojto 111:4336505e4b1c 71 * The outline of this documentation is as follows:
Kojto 111:4336505e4b1c 72 * - \ref asfdoc_sam0_system_pinmux_prerequisites
Kojto 111:4336505e4b1c 73 * - \ref asfdoc_sam0_system_pinmux_module_overview
Kojto 111:4336505e4b1c 74 * - \ref asfdoc_sam0_system_pinmux_special_considerations
Kojto 111:4336505e4b1c 75 * - \ref asfdoc_sam0_system_pinmux_extra_info
Kojto 111:4336505e4b1c 76 * - \ref asfdoc_sam0_system_pinmux_examples
Kojto 111:4336505e4b1c 77 * - \ref asfdoc_sam0_system_pinmux_api_overview
Kojto 111:4336505e4b1c 78 *
Kojto 111:4336505e4b1c 79 *
Kojto 111:4336505e4b1c 80 * \section asfdoc_sam0_system_pinmux_prerequisites Prerequisites
Kojto 111:4336505e4b1c 81 *
Kojto 111:4336505e4b1c 82 * There are no prerequisites for this module.
Kojto 111:4336505e4b1c 83 *
Kojto 111:4336505e4b1c 84 *
Kojto 111:4336505e4b1c 85 * \section asfdoc_sam0_system_pinmux_module_overview Module Overview
Kojto 111:4336505e4b1c 86 *
Kojto 111:4336505e4b1c 87 * The SAM devices contain a number of General Purpose I/O pins, used to
Kojto 111:4336505e4b1c 88 * interface the user application logic and internal hardware peripherals to
Kojto 111:4336505e4b1c 89 * an external system. The Pin Multiplexer (PINMUX) driver provides a method
Kojto 111:4336505e4b1c 90 * of configuring the individual pin peripheral multiplexers to select
Kojto 111:4336505e4b1c 91 * alternate pin functions.
Kojto 111:4336505e4b1c 92 *
Kojto 111:4336505e4b1c 93 * \subsection asfdoc_sam0_system_pinmux_features Driver Feature Macro Definition
Kojto 111:4336505e4b1c 94 * <table>
Kojto 111:4336505e4b1c 95 * <tr>
Kojto 111:4336505e4b1c 96 * <th>Driver Feature Macro</th>
Kojto 111:4336505e4b1c 97 * <th>Supported devices</th>
Kojto 111:4336505e4b1c 98 * </tr>
Kojto 111:4336505e4b1c 99 * <tr>
Kojto 111:4336505e4b1c 100 * <td>FEATURE_SYSTEM_PINMUX_DRIVE_STRENGTH</td>
Kojto 111:4336505e4b1c 101 * <td>SAML21, SAMC20/C21</td>
Kojto 111:4336505e4b1c 102 * </tr>
Kojto 111:4336505e4b1c 103 * </table>
Kojto 111:4336505e4b1c 104 * \note The specific features are only available in the driver when the
Kojto 111:4336505e4b1c 105 * selected device supports those features.
Kojto 111:4336505e4b1c 106 *
Kojto 111:4336505e4b1c 107 * \subsection asfdoc_sam0_system_pinmux_physical_logical_pins Physical and Logical GPIO Pins
Kojto 111:4336505e4b1c 108 * SAM devices use two naming conventions for the I/O pins in the device; one
Kojto 111:4336505e4b1c 109 * physical and one logical. Each physical pin on a device package is assigned
Kojto 111:4336505e4b1c 110 * both a physical port and pin identifier (e.g. "PORTA.0") as well as a
Kojto 111:4336505e4b1c 111 * monotonically incrementing logical GPIO number (e.g. "GPIO0"). While the
Kojto 111:4336505e4b1c 112 * former is used to map physical pins to their physical internal device module
Kojto 111:4336505e4b1c 113 * counterparts, for simplicity the design of this driver uses the logical GPIO
Kojto 111:4336505e4b1c 114 * numbers instead.
Kojto 111:4336505e4b1c 115 *
Kojto 111:4336505e4b1c 116 * \subsection asfdoc_sam0_system_pinmux_peripheral_muxing Peripheral Multiplexing
Kojto 111:4336505e4b1c 117 * SAM devices contain a peripheral MUX, which is individually controllable
Kojto 111:4336505e4b1c 118 * for each I/O pin of the device. The peripheral MUX allows you to select the
Kojto 111:4336505e4b1c 119 * function of a physical package pin - whether it will be controlled as a user
Kojto 111:4336505e4b1c 120 * controllable GPIO pin, or whether it will be connected internally to one of
Kojto 111:4336505e4b1c 121 * several peripheral modules (such as an I<SUP>2</SUP>C module). When a pin is
Kojto 111:4336505e4b1c 122 * configured in GPIO mode, other peripherals connected to the same pin will be
Kojto 111:4336505e4b1c 123 * disabled.
Kojto 111:4336505e4b1c 124 *
Kojto 111:4336505e4b1c 125 * \subsection asfdoc_sam0_system_pinmux_pad_characteristics Special Pad Characteristics
Kojto 111:4336505e4b1c 126 * There are several special modes that can be selected on one or more I/O pins
Kojto 111:4336505e4b1c 127 * of the device, which alter the input and output characteristics of the pad.
Kojto 111:4336505e4b1c 128 *
Kojto 111:4336505e4b1c 129 * \subsubsection asfdoc_sam0_system_pinmux_drive_strength Drive Strength
Kojto 111:4336505e4b1c 130 * The Drive Strength configures the strength of the output driver on the
Kojto 111:4336505e4b1c 131 * pad. Normally, there is a fixed current limit that each I/O pin can safely
Kojto 111:4336505e4b1c 132 * drive, however some I/O pads offer a higher drive mode which increases this
Kojto 111:4336505e4b1c 133 * limit for that I/O pin at the expense of an increased power consumption.
Kojto 111:4336505e4b1c 134 *
Kojto 111:4336505e4b1c 135 * \subsubsection asfdoc_sam0_system_pinmux_slew_rate Slew Rate
Kojto 111:4336505e4b1c 136 * The Slew Rate configures the slew rate of the output driver, limiting the
Kojto 111:4336505e4b1c 137 * rate at which the pad output voltage can change with time.
Kojto 111:4336505e4b1c 138 *
Kojto 111:4336505e4b1c 139 * \subsubsection asfdoc_sam0_system_pinmux_input_sample_mode Input Sample Mode
Kojto 111:4336505e4b1c 140 * The Input Sample Mode configures the input sampler buffer of the pad. By
Kojto 111:4336505e4b1c 141 * default, the input buffer is only sampled "on-demand", i.e. when the user
Kojto 111:4336505e4b1c 142 * application attempts to read from the input buffer. This mode is the most
Kojto 111:4336505e4b1c 143 * power efficient, but increases the latency of the input sample by two clock
Kojto 111:4336505e4b1c 144 * cycles of the port clock. To reduce latency, the input sampler can instead
Kojto 111:4336505e4b1c 145 * be configured to always sample the input buffer on each port clock cycle, at
Kojto 111:4336505e4b1c 146 * the expense of an increased power consumption.
Kojto 111:4336505e4b1c 147 *
Kojto 111:4336505e4b1c 148 * \subsection asfdoc_sam0_system_pinmux_module_overview_physical Physical Connection
Kojto 111:4336505e4b1c 149 *
Kojto 111:4336505e4b1c 150 * \ref asfdoc_sam0_system_pinmux_intconnections "The diagram below" shows
Kojto 111:4336505e4b1c 151 * how this module is interconnected within the device:
Kojto 111:4336505e4b1c 152 *
Kojto 111:4336505e4b1c 153 * \anchor asfdoc_sam0_system_pinmux_intconnections
Kojto 111:4336505e4b1c 154 * \dot
Kojto 111:4336505e4b1c 155 * digraph overview {
Kojto 111:4336505e4b1c 156 * node [label="Port Pad" shape=square] pad;
Kojto 111:4336505e4b1c 157 *
Kojto 111:4336505e4b1c 158 * subgraph driver {
Kojto 111:4336505e4b1c 159 * node [label="Peripheral MUX" shape=trapezium] pinmux;
Kojto 111:4336505e4b1c 160 * node [label="GPIO Module" shape=ellipse shape=ellipse style=filled fillcolor=lightgray] gpio;
Kojto 111:4336505e4b1c 161 * node [label="Other Peripheral Modules" shape=ellipse style=filled fillcolor=lightgray] peripherals;
Kojto 111:4336505e4b1c 162 * }
Kojto 111:4336505e4b1c 163 *
Kojto 111:4336505e4b1c 164 * pinmux -> gpio;
Kojto 111:4336505e4b1c 165 * pad -> pinmux;
Kojto 111:4336505e4b1c 166 * pinmux -> peripherals;
Kojto 111:4336505e4b1c 167 * }
Kojto 111:4336505e4b1c 168 * \enddot
Kojto 111:4336505e4b1c 169 *
Kojto 111:4336505e4b1c 170 * \section asfdoc_sam0_system_pinmux_special_considerations Special Considerations
Kojto 111:4336505e4b1c 171 *
Kojto 111:4336505e4b1c 172 * The SAM port pin input sampling mode is set in groups of four physical
Kojto 111:4336505e4b1c 173 * pins; setting the sampling mode of any pin in a sub-group of eight I/O pins
Kojto 111:4336505e4b1c 174 * will configure the sampling mode of the entire sub-group.
Kojto 111:4336505e4b1c 175 *
Kojto 111:4336505e4b1c 176 * High Drive Strength output driver mode is not available on all device pins -
Kojto 111:4336505e4b1c 177 * refer to your device specific datasheet.
Kojto 111:4336505e4b1c 178 *
Kojto 111:4336505e4b1c 179 *
Kojto 111:4336505e4b1c 180 * \section asfdoc_sam0_system_pinmux_extra_info Extra Information
Kojto 111:4336505e4b1c 181 *
Kojto 111:4336505e4b1c 182 * For extra information, see \ref asfdoc_sam0_system_pinmux_extra. This includes:
Kojto 111:4336505e4b1c 183 * - \ref asfdoc_sam0_system_pinmux_extra_acronyms
Kojto 111:4336505e4b1c 184 * - \ref asfdoc_sam0_system_pinmux_extra_dependencies
Kojto 111:4336505e4b1c 185 * - \ref asfdoc_sam0_system_pinmux_extra_errata
Kojto 111:4336505e4b1c 186 * - \ref asfdoc_sam0_system_pinmux_extra_history
Kojto 111:4336505e4b1c 187 *
Kojto 111:4336505e4b1c 188 *
Kojto 111:4336505e4b1c 189 * \section asfdoc_sam0_system_pinmux_examples Examples
Kojto 111:4336505e4b1c 190 *
Kojto 111:4336505e4b1c 191 * For a list of examples related to this driver, see
Kojto 111:4336505e4b1c 192 * \ref asfdoc_sam0_system_pinmux_exqsg.
Kojto 111:4336505e4b1c 193 *
Kojto 111:4336505e4b1c 194 *
Kojto 111:4336505e4b1c 195 * \section asfdoc_sam0_system_pinmux_api_overview API Overview
Kojto 111:4336505e4b1c 196 * @{
Kojto 111:4336505e4b1c 197 */
Kojto 111:4336505e4b1c 198
Kojto 111:4336505e4b1c 199 #include <compiler.h>
Kojto 111:4336505e4b1c 200
Kojto 111:4336505e4b1c 201 #ifdef __cplusplus
Kojto 111:4336505e4b1c 202 extern "C" {
Kojto 111:4336505e4b1c 203 #endif
Kojto 111:4336505e4b1c 204
Kojto 111:4336505e4b1c 205 /*@{*/
Kojto 111:4336505e4b1c 206 #if (SAML21) || (SAMC20) || (SAMC21) || defined(__DOXYGEN__)
Kojto 111:4336505e4b1c 207 /** Output Driver Strength Selection feature support. */
Kojto 111:4336505e4b1c 208 # define FEATURE_SYSTEM_PINMUX_DRIVE_STRENGTH
Kojto 111:4336505e4b1c 209 #endif
Kojto 111:4336505e4b1c 210 /*@}*/
Kojto 111:4336505e4b1c 211
Kojto 111:4336505e4b1c 212 /** Peripheral multiplexer index to select GPIO mode for a pin. */
Kojto 111:4336505e4b1c 213 #define SYSTEM_PINMUX_GPIO (1 << 7)
Kojto 111:4336505e4b1c 214
Kojto 111:4336505e4b1c 215 /**
Kojto 111:4336505e4b1c 216 * \brief Port pin direction configuration enum.
Kojto 111:4336505e4b1c 217 *
Kojto 111:4336505e4b1c 218 * Enum for the possible pin direction settings of the port pin configuration
Kojto 111:4336505e4b1c 219 * structure, to indicate the direction the pin should use.
Kojto 111:4336505e4b1c 220 */
Kojto 111:4336505e4b1c 221 enum system_pinmux_pin_dir {
Kojto 111:4336505e4b1c 222 /** The pin's input buffer should be enabled, so that the pin state can
Kojto 111:4336505e4b1c 223 * be read. */
Kojto 111:4336505e4b1c 224 SYSTEM_PINMUX_PIN_DIR_INPUT,
Kojto 111:4336505e4b1c 225 /** The pin's output buffer should be enabled, so that the pin state can
Kojto 111:4336505e4b1c 226 * be set (but not read back). */
Kojto 111:4336505e4b1c 227 SYSTEM_PINMUX_PIN_DIR_OUTPUT,
Kojto 111:4336505e4b1c 228 /** The pin's output and input buffers should both be enabled, so that the
Kojto 111:4336505e4b1c 229 * pin state can be set and read back. */
Kojto 111:4336505e4b1c 230 SYSTEM_PINMUX_PIN_DIR_OUTPUT_WITH_READBACK,
Kojto 111:4336505e4b1c 231 };
Kojto 111:4336505e4b1c 232
Kojto 111:4336505e4b1c 233 /**
Kojto 111:4336505e4b1c 234 * \brief Port pin input pull configuration enum.
Kojto 111:4336505e4b1c 235 *
Kojto 111:4336505e4b1c 236 * Enum for the possible pin pull settings of the port pin configuration
Kojto 111:4336505e4b1c 237 * structure, to indicate the type of logic level pull the pin should use.
Kojto 111:4336505e4b1c 238 */
Kojto 111:4336505e4b1c 239 enum system_pinmux_pin_pull {
Kojto 111:4336505e4b1c 240 /** No logical pull should be applied to the pin. */
Kojto 111:4336505e4b1c 241 SYSTEM_PINMUX_PIN_PULL_NONE,
Kojto 111:4336505e4b1c 242 /** Pin should be pulled up when idle. */
Kojto 111:4336505e4b1c 243 SYSTEM_PINMUX_PIN_PULL_UP,
Kojto 111:4336505e4b1c 244 /** Pin should be pulled down when idle. */
Kojto 111:4336505e4b1c 245 SYSTEM_PINMUX_PIN_PULL_DOWN,
Kojto 111:4336505e4b1c 246 };
Kojto 111:4336505e4b1c 247
Kojto 111:4336505e4b1c 248 /**
Kojto 111:4336505e4b1c 249 * \brief Port pin digital input sampling mode enum.
Kojto 111:4336505e4b1c 250 *
Kojto 111:4336505e4b1c 251 * Enum for the possible input sampling modes for the port pin configuration
Kojto 111:4336505e4b1c 252 * structure, to indicate the type of sampling a port pin should use.
Kojto 111:4336505e4b1c 253 */
Kojto 111:4336505e4b1c 254 enum system_pinmux_pin_sample {
Kojto 111:4336505e4b1c 255 /** Pin input buffer should continuously sample the pin state. */
Kojto 111:4336505e4b1c 256 SYSTEM_PINMUX_PIN_SAMPLE_CONTINUOUS,
Kojto 111:4336505e4b1c 257 /** Pin input buffer should be enabled when the IN register is read. */
Kojto 111:4336505e4b1c 258 SYSTEM_PINMUX_PIN_SAMPLE_ONDEMAND,
Kojto 111:4336505e4b1c 259 };
Kojto 111:4336505e4b1c 260
Kojto 111:4336505e4b1c 261 /**
Kojto 111:4336505e4b1c 262 * \brief Port pin configuration structure.
Kojto 111:4336505e4b1c 263 *
Kojto 111:4336505e4b1c 264 * Configuration structure for a port pin instance. This structure should be
Kojto 111:4336505e4b1c 265 * structure should be initialized by the
Kojto 111:4336505e4b1c 266 * \ref system_pinmux_get_config_defaults() function before being modified by
Kojto 111:4336505e4b1c 267 * the user application.
Kojto 111:4336505e4b1c 268 */
Kojto 111:4336505e4b1c 269 struct system_pinmux_config {
Kojto 111:4336505e4b1c 270 /** MUX index of the peripheral that should control the pin, if peripheral
Kojto 111:4336505e4b1c 271 * control is desired. For GPIO use, this should be set to
Kojto 111:4336505e4b1c 272 * \ref SYSTEM_PINMUX_GPIO. */
Kojto 111:4336505e4b1c 273 uint8_t mux_position;
Kojto 111:4336505e4b1c 274
Kojto 111:4336505e4b1c 275 /** Port buffer input/output direction. */
Kojto 111:4336505e4b1c 276 enum system_pinmux_pin_dir direction;
Kojto 111:4336505e4b1c 277
Kojto 111:4336505e4b1c 278 /** Logic level pull of the input buffer. */
Kojto 111:4336505e4b1c 279 enum system_pinmux_pin_pull input_pull;
Kojto 111:4336505e4b1c 280
Kojto 111:4336505e4b1c 281 /** Enable lowest possible powerstate on the pin.
Kojto 111:4336505e4b1c 282 *
Kojto 111:4336505e4b1c 283 * \note All other configurations will be ignored, the pin will be disabled.
Kojto 111:4336505e4b1c 284 */
Kojto 111:4336505e4b1c 285 bool powersave;
Kojto 111:4336505e4b1c 286 };
Kojto 111:4336505e4b1c 287
Kojto 111:4336505e4b1c 288 /** \name Configuration and Initialization
Kojto 111:4336505e4b1c 289 * @{
Kojto 111:4336505e4b1c 290 */
Kojto 111:4336505e4b1c 291
Kojto 111:4336505e4b1c 292 /**
Kojto 111:4336505e4b1c 293 * \brief Initializes a Port pin configuration structure to defaults.
Kojto 111:4336505e4b1c 294 *
Kojto 111:4336505e4b1c 295 * Initializes a given Port pin configuration structure to a set of
Kojto 111:4336505e4b1c 296 * known default values. This function should be called on all new
Kojto 111:4336505e4b1c 297 * instances of these configuration structures before being modified by the
Kojto 111:4336505e4b1c 298 * user application.
Kojto 111:4336505e4b1c 299 *
Kojto 111:4336505e4b1c 300 * The default configuration is as follows:
Kojto 111:4336505e4b1c 301 * \li Non peripheral (i.e. GPIO) controlled
Kojto 111:4336505e4b1c 302 * \li Input mode with internal pull-up enabled
Kojto 111:4336505e4b1c 303 *
Kojto 111:4336505e4b1c 304 * \param[out] config Configuration structure to initialize to default values
Kojto 111:4336505e4b1c 305 */
Kojto 111:4336505e4b1c 306 static inline void system_pinmux_get_config_defaults(
Kojto 111:4336505e4b1c 307 struct system_pinmux_config *const config)
Kojto 111:4336505e4b1c 308 {
Kojto 111:4336505e4b1c 309 /* Sanity check arguments */
Kojto 111:4336505e4b1c 310 Assert(config);
Kojto 111:4336505e4b1c 311
Kojto 111:4336505e4b1c 312 /* Default configuration values */
Kojto 111:4336505e4b1c 313 config->mux_position = SYSTEM_PINMUX_GPIO;
Kojto 111:4336505e4b1c 314 config->direction = SYSTEM_PINMUX_PIN_DIR_INPUT;
Kojto 111:4336505e4b1c 315 config->input_pull = SYSTEM_PINMUX_PIN_PULL_UP;
Kojto 111:4336505e4b1c 316 config->powersave = false;
Kojto 111:4336505e4b1c 317 }
Kojto 111:4336505e4b1c 318
Kojto 111:4336505e4b1c 319 void system_pinmux_pin_set_config(
Kojto 111:4336505e4b1c 320 const uint8_t gpio_pin,
Kojto 111:4336505e4b1c 321 const struct system_pinmux_config *const config);
Kojto 111:4336505e4b1c 322
Kojto 111:4336505e4b1c 323 void system_pinmux_group_set_config(
Kojto 111:4336505e4b1c 324 PortGroup *const port,
Kojto 111:4336505e4b1c 325 const uint32_t mask,
Kojto 111:4336505e4b1c 326 const struct system_pinmux_config *const config);
Kojto 111:4336505e4b1c 327
Kojto 111:4336505e4b1c 328 /** @} */
Kojto 111:4336505e4b1c 329
Kojto 111:4336505e4b1c 330 /** \name Special Mode Configuration (Physical Group Orientated)
Kojto 111:4336505e4b1c 331 * @{
Kojto 111:4336505e4b1c 332 */
Kojto 111:4336505e4b1c 333
Kojto 111:4336505e4b1c 334 /**
Kojto 111:4336505e4b1c 335 * \brief Retrieves the PORT module group instance from a given GPIO pin number.
Kojto 111:4336505e4b1c 336 *
Kojto 111:4336505e4b1c 337 * Retrieves the PORT module group instance associated with a given logical
Kojto 111:4336505e4b1c 338 * GPIO pin number.
Kojto 111:4336505e4b1c 339 *
Kojto 111:4336505e4b1c 340 * \param[in] gpio_pin Index of the GPIO pin to convert
Kojto 111:4336505e4b1c 341 *
Kojto 111:4336505e4b1c 342 * \return Base address of the associated PORT module.
Kojto 111:4336505e4b1c 343 */
Kojto 111:4336505e4b1c 344 static inline PortGroup* system_pinmux_get_group_from_gpio_pin(
Kojto 111:4336505e4b1c 345 const uint8_t gpio_pin)
Kojto 111:4336505e4b1c 346 {
Kojto 111:4336505e4b1c 347 uint8_t port_index = (gpio_pin / 128);
Kojto 111:4336505e4b1c 348 uint8_t group_index = (gpio_pin / 32);
Kojto 111:4336505e4b1c 349
Kojto 111:4336505e4b1c 350 /* Array of available ports. */
Kojto 111:4336505e4b1c 351 Port *const ports[PORT_INST_NUM] = PORT_INSTS;
Kojto 111:4336505e4b1c 352
Kojto 111:4336505e4b1c 353 if (port_index < PORT_INST_NUM) {
Kojto 111:4336505e4b1c 354 return &(ports[port_index]->Group[group_index]);
Kojto 111:4336505e4b1c 355 } else {
Kojto 111:4336505e4b1c 356 Assert(false);
Kojto 111:4336505e4b1c 357 return NULL;
Kojto 111:4336505e4b1c 358 }
Kojto 111:4336505e4b1c 359 }
Kojto 111:4336505e4b1c 360
Kojto 111:4336505e4b1c 361 void system_pinmux_group_set_input_sample_mode(
Kojto 111:4336505e4b1c 362 PortGroup *const port,
Kojto 111:4336505e4b1c 363 const uint32_t mask,
Kojto 111:4336505e4b1c 364 const enum system_pinmux_pin_sample mode);
Kojto 111:4336505e4b1c 365
Kojto 111:4336505e4b1c 366 /** @} */
Kojto 111:4336505e4b1c 367
Kojto 111:4336505e4b1c 368 /** \name Special Mode Configuration (Logical Pin Orientated)
Kojto 111:4336505e4b1c 369 * @{
Kojto 111:4336505e4b1c 370 */
Kojto 111:4336505e4b1c 371
Kojto 111:4336505e4b1c 372 /**
Kojto 111:4336505e4b1c 373 * \brief Retrieves the currently selected MUX position of a logical pin.
Kojto 111:4336505e4b1c 374 *
Kojto 111:4336505e4b1c 375 * Retrieves the selected MUX peripheral on a given logical GPIO pin.
Kojto 111:4336505e4b1c 376 *
Kojto 111:4336505e4b1c 377 * \param[in] gpio_pin Index of the GPIO pin to configure
Kojto 111:4336505e4b1c 378 *
Kojto 111:4336505e4b1c 379 * \return Currently selected peripheral index on the specified pin.
Kojto 111:4336505e4b1c 380 */
Kojto 111:4336505e4b1c 381 static inline uint8_t system_pinmux_pin_get_mux_position(
Kojto 111:4336505e4b1c 382 const uint8_t gpio_pin)
Kojto 111:4336505e4b1c 383 {
Kojto 111:4336505e4b1c 384 PortGroup *const port = system_pinmux_get_group_from_gpio_pin(gpio_pin);
Kojto 111:4336505e4b1c 385 uint32_t pin_index = (gpio_pin % 32);
Kojto 111:4336505e4b1c 386
Kojto 111:4336505e4b1c 387 if (!(port->PINCFG[pin_index].reg & PORT_PINCFG_PMUXEN)) {
Kojto 111:4336505e4b1c 388 return SYSTEM_PINMUX_GPIO;
Kojto 111:4336505e4b1c 389 }
Kojto 111:4336505e4b1c 390
Kojto 111:4336505e4b1c 391 uint32_t pmux_reg = port->PMUX[pin_index / 2].reg;
Kojto 111:4336505e4b1c 392
Kojto 111:4336505e4b1c 393 if (pin_index & 1) {
Kojto 111:4336505e4b1c 394 return (pmux_reg & PORT_PMUX_PMUXO_Msk) >> PORT_PMUX_PMUXO_Pos;
Kojto 111:4336505e4b1c 395 } else {
Kojto 111:4336505e4b1c 396 return (pmux_reg & PORT_PMUX_PMUXE_Msk) >> PORT_PMUX_PMUXE_Pos;
Kojto 111:4336505e4b1c 397 }
Kojto 111:4336505e4b1c 398 }
Kojto 111:4336505e4b1c 399
Kojto 111:4336505e4b1c 400 /**
Kojto 111:4336505e4b1c 401 * \brief Configures the input sampling mode for a GPIO pin.
Kojto 111:4336505e4b1c 402 *
Kojto 111:4336505e4b1c 403 * Configures the input sampling mode for a GPIO input, to
Kojto 111:4336505e4b1c 404 * control when the physical I/O pin value is sampled and
Kojto 111:4336505e4b1c 405 * stored inside the microcontroller.
Kojto 111:4336505e4b1c 406 *
Kojto 111:4336505e4b1c 407 * \param[in] gpio_pin Index of the GPIO pin to configure
Kojto 111:4336505e4b1c 408 * \param[in] mode New pin sampling mode to configure
Kojto 111:4336505e4b1c 409 */
Kojto 111:4336505e4b1c 410 static inline void system_pinmux_pin_set_input_sample_mode(
Kojto 111:4336505e4b1c 411 const uint8_t gpio_pin,
Kojto 111:4336505e4b1c 412 const enum system_pinmux_pin_sample mode)
Kojto 111:4336505e4b1c 413 {
Kojto 111:4336505e4b1c 414 PortGroup* const port = system_pinmux_get_group_from_gpio_pin(gpio_pin);
Kojto 111:4336505e4b1c 415 uint32_t pin_index = (gpio_pin % 32);
Kojto 111:4336505e4b1c 416
Kojto 111:4336505e4b1c 417 if (mode == SYSTEM_PINMUX_PIN_SAMPLE_ONDEMAND) {
Kojto 111:4336505e4b1c 418 port->CTRL.reg |= (1 << pin_index);
Kojto 111:4336505e4b1c 419 } else {
Kojto 111:4336505e4b1c 420 port->CTRL.reg &= ~(1 << pin_index);
Kojto 111:4336505e4b1c 421 }
Kojto 111:4336505e4b1c 422 }
Kojto 111:4336505e4b1c 423
Kojto 111:4336505e4b1c 424 /** @} */
Kojto 111:4336505e4b1c 425
Kojto 111:4336505e4b1c 426 #ifdef FEATURE_SYSTEM_PINMUX_DRIVE_STRENGTH
Kojto 111:4336505e4b1c 427 /**
Kojto 111:4336505e4b1c 428 * \brief Port pin drive output strength enum.
Kojto 111:4336505e4b1c 429 *
Kojto 111:4336505e4b1c 430 * Enum for the possible output drive strengths for the port pin
Kojto 111:4336505e4b1c 431 * configuration structure, to indicate the driver strength the pin should
Kojto 111:4336505e4b1c 432 * use.
Kojto 111:4336505e4b1c 433 */
Kojto 111:4336505e4b1c 434 enum system_pinmux_pin_strength {
Kojto 111:4336505e4b1c 435 /** Normal output driver strength. */
Kojto 111:4336505e4b1c 436 SYSTEM_PINMUX_PIN_STRENGTH_NORMAL,
Kojto 111:4336505e4b1c 437 /** High current output driver strength. */
Kojto 111:4336505e4b1c 438 SYSTEM_PINMUX_PIN_STRENGTH_HIGH,
Kojto 111:4336505e4b1c 439 };
Kojto 111:4336505e4b1c 440
Kojto 111:4336505e4b1c 441 /**
Kojto 111:4336505e4b1c 442 * \brief Configures the output driver strength mode for a GPIO pin.
Kojto 111:4336505e4b1c 443 *
Kojto 111:4336505e4b1c 444 * Configures the output drive strength for a GPIO output, to
Kojto 111:4336505e4b1c 445 * control the amount of current the pad is able to sink/source.
Kojto 111:4336505e4b1c 446 *
Kojto 111:4336505e4b1c 447 * \param[in] gpio_pin Index of the GPIO pin to configure
Kojto 111:4336505e4b1c 448 * \param[in] mode New output driver strength mode to configure
Kojto 111:4336505e4b1c 449 */
Kojto 111:4336505e4b1c 450 static inline void system_pinmux_pin_set_output_strength(
Kojto 111:4336505e4b1c 451 const uint8_t gpio_pin,
Kojto 111:4336505e4b1c 452 const enum system_pinmux_pin_strength mode)
Kojto 111:4336505e4b1c 453 {
Kojto 111:4336505e4b1c 454 PortGroup* const port = system_pinmux_get_group_from_gpio_pin(gpio_pin);
Kojto 111:4336505e4b1c 455 uint32_t pin_index = (gpio_pin % 32);
Kojto 111:4336505e4b1c 456
Kojto 111:4336505e4b1c 457 if (mode == SYSTEM_PINMUX_PIN_STRENGTH_HIGH) {
Kojto 111:4336505e4b1c 458 port->PINCFG[pin_index].reg |= PORT_PINCFG_DRVSTR;
Kojto 111:4336505e4b1c 459 } else {
Kojto 111:4336505e4b1c 460 port->PINCFG[pin_index].reg &= ~PORT_PINCFG_DRVSTR;
Kojto 111:4336505e4b1c 461 }
Kojto 111:4336505e4b1c 462 }
Kojto 111:4336505e4b1c 463
Kojto 111:4336505e4b1c 464 void system_pinmux_group_set_output_strength(
Kojto 111:4336505e4b1c 465 PortGroup *const port,
Kojto 111:4336505e4b1c 466 const uint32_t mask,
Kojto 111:4336505e4b1c 467 const enum system_pinmux_pin_strength mode);
Kojto 111:4336505e4b1c 468 #endif
Kojto 111:4336505e4b1c 469
Kojto 111:4336505e4b1c 470 #ifdef FEATURE_SYSTEM_PINMUX_SLEWRATE_LIMITER
Kojto 111:4336505e4b1c 471 /**
Kojto 111:4336505e4b1c 472 * \brief Port pin output slew rate enum.
Kojto 111:4336505e4b1c 473 *
Kojto 111:4336505e4b1c 474 * Enum for the possible output drive slew rates for the port pin
Kojto 111:4336505e4b1c 475 * configuration structure, to indicate the driver slew rate the pin should
Kojto 111:4336505e4b1c 476 * use.
Kojto 111:4336505e4b1c 477 */
Kojto 111:4336505e4b1c 478 enum system_pinmux_pin_slew_rate {
Kojto 111:4336505e4b1c 479 /** Normal pin output slew rate. */
Kojto 111:4336505e4b1c 480 SYSTEM_PINMUX_PIN_SLEW_RATE_NORMAL,
Kojto 111:4336505e4b1c 481 /** Enable slew rate limiter on the pin. */
Kojto 111:4336505e4b1c 482 SYSTEM_PINMUX_PIN_SLEW_RATE_LIMITED,
Kojto 111:4336505e4b1c 483 };
Kojto 111:4336505e4b1c 484
Kojto 111:4336505e4b1c 485 /**
Kojto 111:4336505e4b1c 486 * \brief Configures the output slew rate mode for a GPIO pin.
Kojto 111:4336505e4b1c 487 *
Kojto 111:4336505e4b1c 488 * Configures the output slew rate mode for a GPIO output, to
Kojto 111:4336505e4b1c 489 * control the speed at which the physical output pin can react to
Kojto 111:4336505e4b1c 490 * logical changes of the I/O pin value.
Kojto 111:4336505e4b1c 491 *
Kojto 111:4336505e4b1c 492 * \param[in] gpio_pin Index of the GPIO pin to configure
Kojto 111:4336505e4b1c 493 * \param[in] mode New pin slew rate mode to configure
Kojto 111:4336505e4b1c 494 */
Kojto 111:4336505e4b1c 495 static inline void system_pinmux_pin_set_output_slew_rate(
Kojto 111:4336505e4b1c 496 const uint8_t gpio_pin,
Kojto 111:4336505e4b1c 497 const enum system_pinmux_pin_slew_rate mode)
Kojto 111:4336505e4b1c 498 {
Kojto 111:4336505e4b1c 499 PortGroup* const port = system_pinmux_get_group_from_gpio_pin(gpio_pin);
Kojto 111:4336505e4b1c 500 uint32_t pin_index = (gpio_pin % 32);
Kojto 111:4336505e4b1c 501
Kojto 111:4336505e4b1c 502 if (mode == SYSTEM_PINMUX_PIN_SLEW_RATE_LIMITED) {
Kojto 111:4336505e4b1c 503 port->PINCFG[pin_index].reg |= PORT_PINCFG_SLEWLIM;
Kojto 111:4336505e4b1c 504 } else {
Kojto 111:4336505e4b1c 505 port->PINCFG[pin_index].reg &= ~PORT_PINCFG_SLEWLIM;
Kojto 111:4336505e4b1c 506 }
Kojto 111:4336505e4b1c 507 }
Kojto 111:4336505e4b1c 508
Kojto 111:4336505e4b1c 509 void system_pinmux_group_set_output_slew_rate(
Kojto 111:4336505e4b1c 510 PortGroup *const port,
Kojto 111:4336505e4b1c 511 const uint32_t mask,
Kojto 111:4336505e4b1c 512 const enum system_pinmux_pin_slew_rate mode);
Kojto 111:4336505e4b1c 513 #endif
Kojto 111:4336505e4b1c 514
Kojto 111:4336505e4b1c 515 #ifdef FEATURE_SYSTEM_PINMUX_OPEN_DRAIN
Kojto 111:4336505e4b1c 516 /**
Kojto 111:4336505e4b1c 517 * \brief Port pin output drive mode enum.
Kojto 111:4336505e4b1c 518 *
Kojto 111:4336505e4b1c 519 * Enum for the possible output drive modes for the port pin configuration
Kojto 111:4336505e4b1c 520 * structure, to indicate the output mode the pin should use.
Kojto 111:4336505e4b1c 521 */
Kojto 111:4336505e4b1c 522 enum system_pinmux_pin_drive {
Kojto 111:4336505e4b1c 523 /** Use totem pole output drive mode. */
Kojto 111:4336505e4b1c 524 SYSTEM_PINMUX_PIN_DRIVE_TOTEM,
Kojto 111:4336505e4b1c 525 /** Use open drain output drive mode. */
Kojto 111:4336505e4b1c 526 SYSTEM_PINMUX_PIN_DRIVE_OPEN_DRAIN,
Kojto 111:4336505e4b1c 527 };
Kojto 111:4336505e4b1c 528
Kojto 111:4336505e4b1c 529 /**
Kojto 111:4336505e4b1c 530 * \brief Configures the output driver mode for a GPIO pin.
Kojto 111:4336505e4b1c 531 *
Kojto 111:4336505e4b1c 532 * Configures the output driver mode for a GPIO output, to
Kojto 111:4336505e4b1c 533 * control the pad behavior.
Kojto 111:4336505e4b1c 534 *
Kojto 111:4336505e4b1c 535 * \param[in] gpio_pin Index of the GPIO pin to configure
Kojto 111:4336505e4b1c 536 * \param[in] mode New pad output driver mode to configure
Kojto 111:4336505e4b1c 537 */
Kojto 111:4336505e4b1c 538 static inline void system_pinmux_pin_set_output_drive(
Kojto 111:4336505e4b1c 539 const uint8_t gpio_pin,
Kojto 111:4336505e4b1c 540 const enum system_pinmux_pin_drive mode)
Kojto 111:4336505e4b1c 541 {
Kojto 111:4336505e4b1c 542 PortGroup* const port = system_pinmux_get_group_from_gpio_pin(gpio_pin);
Kojto 111:4336505e4b1c 543 uint32_t pin_index = (gpio_pin % 32);
Kojto 111:4336505e4b1c 544
Kojto 111:4336505e4b1c 545 if (mode == SYSTEM_PINMUX_PIN_DRIVE_OPEN_DRAIN) {
Kojto 111:4336505e4b1c 546 port->PINCFG[pin_index].reg |= PORT_PINCFG_ODRAIN;
Kojto 111:4336505e4b1c 547 } else {
Kojto 111:4336505e4b1c 548 port->PINCFG[pin_index].reg &= ~PORT_PINCFG_ODRAIN;
Kojto 111:4336505e4b1c 549 }
Kojto 111:4336505e4b1c 550 }
Kojto 111:4336505e4b1c 551
Kojto 111:4336505e4b1c 552 void system_pinmux_group_set_output_drive(
Kojto 111:4336505e4b1c 553 PortGroup *const port,
Kojto 111:4336505e4b1c 554 const uint32_t mask,
Kojto 111:4336505e4b1c 555 const enum system_pinmux_pin_drive mode);
Kojto 111:4336505e4b1c 556 #endif
Kojto 111:4336505e4b1c 557
Kojto 111:4336505e4b1c 558 #ifdef __cplusplus
Kojto 111:4336505e4b1c 559 }
Kojto 111:4336505e4b1c 560 #endif
Kojto 111:4336505e4b1c 561
Kojto 111:4336505e4b1c 562 /** @} */
Kojto 111:4336505e4b1c 563
Kojto 111:4336505e4b1c 564 /**
Kojto 111:4336505e4b1c 565 * \page asfdoc_sam0_system_pinmux_extra Extra Information for SYSTEM PINMUX Driver
Kojto 111:4336505e4b1c 566 *
Kojto 111:4336505e4b1c 567 * \section asfdoc_sam0_system_pinmux_extra_acronyms Acronyms
Kojto 111:4336505e4b1c 568 * The table below presents the acronyms used in this module:
Kojto 111:4336505e4b1c 569 *
Kojto 111:4336505e4b1c 570 * <table>
Kojto 111:4336505e4b1c 571 * <tr>
Kojto 111:4336505e4b1c 572 * <th>Acronym</th>
Kojto 111:4336505e4b1c 573 * <th>Description</th>
Kojto 111:4336505e4b1c 574 * </tr>
Kojto 111:4336505e4b1c 575 * <tr>
Kojto 111:4336505e4b1c 576 * <td>GPIO</td>
Kojto 111:4336505e4b1c 577 * <td>General Purpose Input/Output</td>
Kojto 111:4336505e4b1c 578 * </tr>
Kojto 111:4336505e4b1c 579 * <tr>
Kojto 111:4336505e4b1c 580 * <td>MUX</td>
Kojto 111:4336505e4b1c 581 * <td>Multiplexer</td>
Kojto 111:4336505e4b1c 582 * </tr>
Kojto 111:4336505e4b1c 583 * </table>
Kojto 111:4336505e4b1c 584 *
Kojto 111:4336505e4b1c 585 *
Kojto 111:4336505e4b1c 586 * \section asfdoc_sam0_system_pinmux_extra_dependencies Dependencies
Kojto 111:4336505e4b1c 587 * This driver has the following dependencies:
Kojto 111:4336505e4b1c 588 *
Kojto 111:4336505e4b1c 589 * - None
Kojto 111:4336505e4b1c 590 *
Kojto 111:4336505e4b1c 591 *
Kojto 111:4336505e4b1c 592 * \section asfdoc_sam0_system_pinmux_extra_errata Errata
Kojto 111:4336505e4b1c 593 * There are no errata related to this driver.
Kojto 111:4336505e4b1c 594 *
Kojto 111:4336505e4b1c 595 *
Kojto 111:4336505e4b1c 596 * \section asfdoc_sam0_system_pinmux_extra_history Module History
Kojto 111:4336505e4b1c 597 * An overview of the module history is presented in the table below, with
Kojto 111:4336505e4b1c 598 * details on the enhancements and fixes made to the module since its first
Kojto 111:4336505e4b1c 599 * release. The current version of this corresponds to the newest version in
Kojto 111:4336505e4b1c 600 * the table.
Kojto 111:4336505e4b1c 601 *
Kojto 111:4336505e4b1c 602 * <table>
Kojto 111:4336505e4b1c 603 * <tr>
Kojto 111:4336505e4b1c 604 * <th>Changelog</th>
Kojto 111:4336505e4b1c 605 * </tr>
Kojto 111:4336505e4b1c 606 * <tr>
Kojto 111:4336505e4b1c 607 * <td>Removed code of open drain, slew limit and drive strength
Kojto 111:4336505e4b1c 608 * features</td>
Kojto 111:4336505e4b1c 609 * </tr>
Kojto 111:4336505e4b1c 610 * <tr>
Kojto 111:4336505e4b1c 611 * <td>Fixed broken sampling mode function implementations, which wrote
Kojto 111:4336505e4b1c 612 * corrupt configuration values to the device registers</td>
Kojto 111:4336505e4b1c 613 * </tr>
Kojto 111:4336505e4b1c 614 * <tr>
Kojto 111:4336505e4b1c 615 * <td>Added missing NULL pointer asserts to the PORT driver functions</td>
Kojto 111:4336505e4b1c 616 * </tr>
Kojto 111:4336505e4b1c 617 * <tr>
Kojto 111:4336505e4b1c 618 * <td>Initial Release</td>
Kojto 111:4336505e4b1c 619 * </tr>
Kojto 111:4336505e4b1c 620 * </table>
Kojto 111:4336505e4b1c 621 */
Kojto 111:4336505e4b1c 622
Kojto 111:4336505e4b1c 623 /**
Kojto 111:4336505e4b1c 624 * \page asfdoc_sam0_system_pinmux_exqsg Examples for SYSTEM PINMUX Driver
Kojto 111:4336505e4b1c 625 *
Kojto 111:4336505e4b1c 626 * This is a list of the available Quick Start guides (QSGs) and example
Kojto 111:4336505e4b1c 627 * applications for \ref asfdoc_sam0_system_pinmux_group. QSGs are simple
Kojto 111:4336505e4b1c 628 * examples with step-by-step instructions to configure and use this driver in a
Kojto 111:4336505e4b1c 629 * selection of use cases. Note that QSGs can be compiled as a standalone
Kojto 111:4336505e4b1c 630 * application or be added to the user application.
Kojto 111:4336505e4b1c 631 *
Kojto 111:4336505e4b1c 632 * - \subpage asfdoc_sam0_system_pinmux_basic_use_case
Kojto 111:4336505e4b1c 633 *
Kojto 111:4336505e4b1c 634 * \page asfdoc_sam0_system_pinmux_document_revision_history Document Revision History
Kojto 111:4336505e4b1c 635 *
Kojto 111:4336505e4b1c 636 * <table>
Kojto 111:4336505e4b1c 637 * <tr>
Kojto 111:4336505e4b1c 638 * <th>Doc. Rev.</td>
Kojto 111:4336505e4b1c 639 * <th>Date</td>
Kojto 111:4336505e4b1c 640 * <th>Comments</td>
Kojto 111:4336505e4b1c 641 * </tr>
Kojto 111:4336505e4b1c 642 * <tr>
Kojto 111:4336505e4b1c 643 * <td>F</td>
Kojto 111:4336505e4b1c 644 * <td>06/2015</td>
Kojto 111:4336505e4b1c 645 * <td>Add support for SAML21, SAMDAx, and SAMC20/C21.</td>
Kojto 111:4336505e4b1c 646 * </tr>
Kojto 111:4336505e4b1c 647 * <tr>
Kojto 111:4336505e4b1c 648 * <td>E</td>
Kojto 111:4336505e4b1c 649 * <td>12/2014</td>
Kojto 111:4336505e4b1c 650 * <td>Add support for SAMR21 and SAMD10/D11.</td>
Kojto 111:4336505e4b1c 651 * </tr>
Kojto 111:4336505e4b1c 652 * <tr>
Kojto 111:4336505e4b1c 653 * <td>D</td>
Kojto 111:4336505e4b1c 654 * <td>01/2014</td>
Kojto 111:4336505e4b1c 655 * <td>Add support for SAMD21.</td>
Kojto 111:4336505e4b1c 656 * </tr>
Kojto 111:4336505e4b1c 657 * <tr>
Kojto 111:4336505e4b1c 658 * <td>C</td>
Kojto 111:4336505e4b1c 659 * <td>09/2013</td>
Kojto 111:4336505e4b1c 660 * <td>Fixed incorrect documentation for the device pin sampling mode.</td>
Kojto 111:4336505e4b1c 661 * </tr>
Kojto 111:4336505e4b1c 662 * <tr>
Kojto 111:4336505e4b1c 663 * <td>B</td>
Kojto 111:4336505e4b1c 664 * <td>06/2013</td>
Kojto 111:4336505e4b1c 665 * <td>Corrected documentation typos.</td>
Kojto 111:4336505e4b1c 666 * </tr>
Kojto 111:4336505e4b1c 667 * <tr>
Kojto 111:4336505e4b1c 668 * <td>A</td>
Kojto 111:4336505e4b1c 669 * <td>06/2013</td>
Kojto 111:4336505e4b1c 670 * <td>Initial release</td>
Kojto 111:4336505e4b1c 671 * </tr>
Kojto 111:4336505e4b1c 672 * </table>
Kojto 111:4336505e4b1c 673 */
Kojto 111:4336505e4b1c 674
Kojto 111:4336505e4b1c 675 #endif