Zephyr Project API 4.3.99
A Scalable Open Source RTOS
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mchp_sam_d5x_e5x_adc.h
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1/*
2 * Copyright (c) 2025 Microchip Technology Inc.
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
12
13#ifndef INCLUDE_ZEPHYR_DT_BINDINGS_ADC_SAM_D5X_E5X_ADC_H_
14#define INCLUDE_ZEPHYR_DT_BINDINGS_ADC_SAM_D5X_E5X_ADC_H_
15
16/* External analog inputs */
17#define MCHP_ADC_AIN0 0x00
18#define MCHP_ADC_AIN1 0x01
19#define MCHP_ADC_AIN2 0x02
20#define MCHP_ADC_AIN3 0x03
21#define MCHP_ADC_AIN4 0x04
22#define MCHP_ADC_AIN5 0x05
23#define MCHP_ADC_AIN6 0x06
24#define MCHP_ADC_AIN7 0x07
25#define MCHP_ADC_AIN8 0x08
26#define MCHP_ADC_AIN9 0x09
27#define MCHP_ADC_AIN10 0x0A
28#define MCHP_ADC_AIN11 0x0B
29#define MCHP_ADC_AIN12 0x0C
30#define MCHP_ADC_AIN13 0x0D
31#define MCHP_ADC_AIN14 0x0E
32#define MCHP_ADC_AIN15 0x0F
33
34/* 0x10 – 0x17: Reserved */
35
36/* Internal ADC sources */
37#define MCHP_ADC_SCALEDCOREVCC 0x18 /* 1/4 scaled core supply */
38#define MCHP_ADC_SCALEDVBAT 0x19 /* 1/4 scaled VBAT */
39#define MCHP_ADC_SCALEDIOVCC 0x1A /* 1/4 scaled I/O supply */
40#define MCHP_ADC_BANDGAP 0x1B /* Bandgap voltage */
41#define MCHP_ADC_PTAT 0x1C /* PTAT temperature sensor */
42#define MCHP_ADC_CTAT 0x1D /* CTAT temperature sensor */
43#define MCHP_ADC_DAC0 0x1E /* DAC0 output */
44
45/* 0x1C – 0x1F: Reserved */
46
47/* ADC positive input (MUXPOS) limits */
48#define MCHP_ADC_INPUT_POS_MAX 0x1E
49#define MCHP_ADC_INPUT_POS_RSV_MIN 0x10
50#define MCHP_ADC_INPUT_POS_RSV_MAX 0x17
51
52/* ADC negative input (MUXNEG) limits */
53#define MCHP_ADC_INPUT_NEG_MAX 0x07
54
55/* ADC reference selection */
56#define MCHP_ADC_REF_INTREF 0x00 /* Internal bandgap reference (SUPC.VREF.SEL) */
57#define MCHP_ADC_REF_INTVCC0 0x02 /* 1/2 VDDANA (VDDANA > 2.0 V) */
58#define MCHP_ADC_REF_INTVCC1 0x03 /* VDDANA */
59#define MCHP_ADC_REF_AREFA 0x04 /* External reference A */
60#define MCHP_ADC_REF_AREFB 0x05 /* External reference B */
61#define MCHP_ADC_REF_AREFC 0x06 /* External reference C (ADC1 only) */
62
63#endif /* INCLUDE_ZEPHYR_DT_BINDINGS_ADC_SAM_D5X_E5X_ADC_H_ */