Lines Matching +full:assigned +full:- +full:address
3 Improved Inter-Integrated Circuit (I3C) Bus
6 I3C (Improved Inter-Integrated Circuit) is a two-signal shared
18 .. _i3c-controller-api:
30 dynamic address assignment needs to be carried out by the I3C
36 .. code-block:: c
56 structures to aid in address assignments and device list management.
80 If any connected devices have already been assigned an address,
82 for example, at power-on. So it is a good idea to reset and
87 #. Do ``SETDASA`` to assign a dynamic address using the static address of the device
97 #. Do ``ENTDAA`` to start dynamic address assignment, if there are
100 * If there is a device waiting for address, it will send
104 * If there is a match, assign an address (either from
105 the stated static address if ``SETDASA`` has not been
106 done, or use a free address).
112 assigned a free address, or the device driver can stop
133 #. Do ``ENEC`` to re-enable events from devices.
135 * The helper function, :c:func:`i3c_bus_init`, only re-enables
136 hot-join events. IBI event should only be enabled when
139 In-Band Interrupt (IBI)
142 If a target device can generate In-Band Interrupt (IBI),
173 .. code-block:: devicetree
178 #address-cells = < 0x3 >;
179 #size-cells = < 0x0 >;
184 pinctrl-0 = < &pinmux-i3c >;
185 pinctrl-names = "default";
187 i2c-scl-hz = < 400000 >;
189 i3c-scl-hz = < 12000000 >;
193 i3c-dev0: i3c-dev0@420000ABCD12345678 {
194 compatible = "vendor,i3c-dev";
201 i2c-dev0: i2c-dev0@380000000000000050 {
202 compatible = "vendor-i2c-dev";
211 -----------
215 * The first one is the static address of the device.
217 * Can be zero if static address is not used. Address will be
218 assigned during DAA (Dynamic Address Assignment).
220 * If non-zero and property ``assigned-address`` is not set,
221 this will be the address of the device after SETDASA
222 (Set Dynamic Address from Static Address) is issued.
224 * Second element is the upper 16-bit of the Provisioned ID (PID)
225 which contains the manufacturer ID left-shifted by 1. This is
226 the bits 33-47 (zero-based) of the 48-bit Provisioned ID.
228 * Third element contains the lower 32-bit of the Provisioned ID
229 which is a combination of the part ID (left-shifted by 16,
230 bits 16-31 of the PID) and the instance ID (left-shifted by 12,
231 bits 12-15 of the PID).
233 Note that the unit-address (the part after ``@``) must match
235 32-bit integer, combining to form a 96-bit integer. This is
239 ----------------------
249 * The first one is the static address of the device. This must be
250 a valid address as I\ :sup:`2`\ C devices do not support
251 dynamic address assignment.
285 Similar to I3C devices, the unit-address must match the ``reg``
286 property fully where each element is treated as 32-bit integer,
287 combining to form a 96-bit integer.
295 such as, its dynamic address, BCR, DCR, MRL and MWL. Therefore,
312 descriptor from the I2C device address. This adds a bit of processing
326 device drivers can be used as-is without modifications. This requires
329 .. code-block:: devicetree
335 i2c-dev0: i2c-dev0@420000000000000050 {
336 compatible = "vendor-i2c-dev";
363 .. _I3C Specification: https://www.mipi.org/specifications/i3c-sensor-specification