| // Copyright lowRISC contributors. |
| // Licensed under the Apache License, Version 2.0, see LICENSE for details. |
| // SPDX-License-Identifier: Apache-2.0 |
| // |
| // adc_ctrl package module |
| |
| package adc_ctrl_pkg; |
| |
| // FSM flow |
| // 1. PWRDN->PWRUP->ONEST_0->ONEST_021->ONEST_1->ONEST_DONE->PWRDN |
| // 2. PWRDN->PWRUP->LP_0->LP_021->LP_1->LP_EVAL->LP_SLP->LP_PWRUP->LP0-> |
| // LP_021->LP_1->LP_EVAL->NP_0->NP_021->NP_1->NP_EVAL->NP_0...repeat |
| // 3. PWRDN->PWRUP->NP_0->NP_021->NP_1->NP_EVAL->NP_0/NP_DONE....repeat |
| typedef enum logic [4:0] { |
| PWRDN, // in the power down state |
| PWRUP, // being powered up |
| ONEST_0, // in oneshot mode; sample channel0 value |
| ONEST_021, // in oneshot mode; transition from chn0 to chn1 |
| ONEST_1, // in oneshot mode; sample channel1 value |
| ONEST_DONE, // one shot done |
| LP_0, // in low-power mode, sample channel0 value |
| LP_021, // in low-power mode, transition from chn0 to chn1 |
| LP_1, // in low-power mode, sample channel1 value |
| LP_EVAL, // in low-power mode, evaluate if there is a match |
| LP_SLP, // in low-power mode, go to sleep |
| LP_PWRUP, // in low-power mode, being powered up |
| NP_0, // in normal-power mode, sample channel0 value |
| NP_021, // in normal-power mode, transition from chn0 to chn1 |
| NP_1, // in normal-power mode, sample channel1 value |
| NP_EVAL, // in normal-power mode, detection is done |
| NP_DONE // normal-power detection done |
| } fsm_state_e; |
| |
| |
| endpackage : adc_ctrl_pkg |
