Referring to the Comportable guideline for peripheral device functionality, the module pinmux has the following hardware interfaces defined
- Primary Clock:
clk_i
- Other Clocks:
clk_aon_i
- Bus Device Interfaces (TL-UL):
tl
- Bus Host Interfaces (TL-UL): none
- Peripheral Pins for Chip IO: none
- Interrupts: none
| Port Name | Package::Struct | Type | Act | Width | Description |
|---|
| sleep_en | logic | uni | rcv | 1 | Level signal that is asserted when the power manager enters sleep. |
| pin_wkup_req | logic | uni | req | 1 | Wakeup request from wakeup detectors, to the power manager, running on the AON clock. |
| tl | tlul_pkg::tl | req_rsp | rsp | 1 | |
| Alert Name | Description |
|---|
| fatal_fault | This fatal alert is triggered when a fatal TL-UL bus integrity fault is detected. |
| Countermeasure ID | Description |
|---|
| PINMUX.BUS.INTEGRITY | End-to-end bus integrity scheme. |
The following table lists the main parameters used throughout the pinmux design.
Note that the pinmux is generated based on the system configuration, and hence these parameters are placed into a package.
The pinout and pinmux mappings are listed under Pinout and Pinmux Mapping for specific top-level configurations.
| Parameter | Description |
|---|
NPeriphOut | Number of peripheral outputs. |
NPeriphIn | Number of peripheral input. |
NMioPads | Number of muxed bidirectional pads. |
NDioPads | Number of dedicated pads. |
The table below lists the primary pinmux IO signals to/from the pad ring.
The number of dedicated and muxed IOs is parametric, and hence the signals are stacked in packed arrays.
| Signal | Direction | Type | Description |
|---|
periph_to_mio_i[NPeriphOut-1:0] | input | packed logic | Signals from NPeriphOut muxed peripheral outputs coming into the pinmux. |
periph_to_mio_oe_i[NPeriphOut-1:0] | input | packed logic | Signals from NPeriphOut muxed peripheral output enables coming into the pinmux. |
mio_to_periph_o[NPeriphIn-1:0] | output | packed logic | Signals to NPeriphIn muxed peripherals coming from the pinmux. |
periph_to_dio_i[NDioPads-1:0] | input | packed logic | Signals from NDioPads dedicated peripheral outputs coming into the pinmux. |
periph_to_dio_oe_i[NDioPads-1:0] | input | packed logic | Signals from NDioPads dedicated peripheral output enables coming into the pinmux. |
dio_to_periph_o[NDioPads-1:0] | output | packed logic | Signals to NDioPads dedicated peripherals coming from the pinmux. |
mio_attr_o[NMioPads-1:0] | output | prim_pad_wrapper_pkg::pad_attr_t | Packed array containing the pad attributes of all muxed IOs. |
mio_out_o[NMioPads-1:0] | output | packed logic | Signals to NMioPads bidirectional muxed pads as output data. |
mio_oe_o[NMioPads-1:0] | output | packed logic | Signals to NMioPads bidirectional muxed pads as output enables. |
mio_in_i[NMioPads-1:0] | input | packed logic | Signals from NMioPads bidirectional muxed pads as input data. |
dio_attr_o[NDioPads-1:0] | output | prim_pad_wrapper_pkg::pad_attr_t | Packed array containing the pad attributes of all dedicated IOs. |
dio_out_o[NDioPads-1:0] | output | packed logic | Signals to NDioPads bidirectional dedicated pads as output data. |
dio_oe_o[NDioPads-1:0] | output | packed logic | Signals to NDioPads bidirectional dedicated pads as output enables. |
dio_in_i[NDioPads-1:0] | input | packed logic | Signals from NDioPads bidirectional dedicated pads as input data. |