Battery Backup Function (VBATT / BAT*) register layout for the RA8D2. More...

#include <stdint.h>

Include dependency graph for ra8_bkup_regs.h:

This graph shows which files directly or indirectly include this file:

Enumerations
enum	ra8_bkup_addr_t : uintptr_t { k_ra8_bkup_base_addr = 0x4001E000UL }
	Battery-backup register window base. More...
enum	ra8_bkup_off_t : uint16_t { k_ra8_bkup_off_vbrsabar = 0x3B0U , k_ra8_bkup_off_vbrpabars = 0x3B4U , k_ra8_bkup_off_vbrpabarns = 0x3B8U , k_ra8_bkup_off_bbfsar = 0x3D0U , k_ra8_bkup_off_vbattmnselr = 0xA84U , k_ra8_bkup_off_vbtbpcr1 = 0xA88U , k_ra8_bkup_off_vbtber = 0xC40U , k_ra8_bkup_off_vbtbpcr2 = 0xC45U , k_ra8_bkup_off_vbtbpsr = 0xC46U , k_ra8_bkup_off_vbtadsr = 0xC48U , k_ra8_bkup_off_vbtadcr1 = 0xC49U , k_ra8_bkup_off_vbtadcr2 = 0xC4AU , k_ra8_bkup_off_vbtictlr = 0xC4CU , k_ra8_bkup_off_vbtictlr2 = 0xC4DU , k_ra8_bkup_off_vbtimonr = 0xC4EU , k_ra8_bkup_off_vbtncwcr = 0xC50U , k_ra8_bkup_off_vbtadcr3 = 0xC54U , k_ra8_bkup_off_vbtbkr0 = 0xD00U }
	Byte-offsets of every BAT* / VBT* register the driver touches. More...
enum	ra8_bkup_limits_t : uint16_t { k_ra8_bkup_reg_count = 128U , k_ra8_bkup_reg_stride = 1U , k_ra8_bkup_word_count = 32U , k_ra8_bkup_word_stride = 4U , k_ra8_bkup_chan_count = 3U , k_ra8_bkup_saba_align = 32U , k_ra8_bkup_saba_align_mask = 0x1FU , k_ra8_bkup_saba_max = 0xFFE0U }
	Backup-register array dimensions and small numeric limits. More...
enum	ra8_bkup_vbtber_bit_t : uint8_t { k_ra8_bkup_vbtber_bit_vbae = 3U }
	Bit positions inside VBTBER (HUM Ch 12.2.6 p 504). More...
enum	ra8_bkup_vbtber_mask_t : uint8_t { k_ra8_bkup_vbtber_mask_vbae = 0x08U }
	Single-bit masks for VBTBER fields. More...
enum	ra8_bkup_vbtbpcr1_bit_t : uint8_t { k_ra8_bkup_vbtbpcr1_bit_bpwswstp = 0U }
	Bit positions inside VBTBPCR1 (HUM Ch 12.2.11 p 507). More...
enum	ra8_bkup_vbtbpcr1_mask_t : uint8_t { k_ra8_bkup_vbtbpcr1_mask_bpwswstp = 0x01U }
	Single-bit masks for VBTBPCR1. More...
enum	ra8_bkup_vbtbpcr2_bit_t : uint8_t { k_ra8_bkup_vbtbpcr2_bit_vdete = 4U , k_ra8_bkup_vbtbpcr2_shift_lvl = 0U }
	Bit positions inside VBTBPCR2 (HUM Ch 12.2.12 p 508). More...
enum	ra8_bkup_vbtbpcr2_mask_t : uint8_t { k_ra8_bkup_vbtbpcr2_mask_vdete = 0x10U , k_ra8_bkup_vbtbpcr2_mask_lvl = 0x07U }
	Field masks for VBTBPCR2. More...
enum	ra8_bkup_vbtbpsr_bit_t : uint8_t { k_ra8_bkup_vbtbpsr_bit_vbporf = 0U , k_ra8_bkup_vbtbpsr_bit_vbporm = 4U , k_ra8_bkup_vbtbpsr_bit_swm = 5U }
	Bit positions inside VBTBPSR (HUM Ch 12.2.13 p 509). More...
enum	ra8_bkup_vbtbpsr_mask_t : uint8_t { k_ra8_bkup_vbtbpsr_mask_vbporf = 0x01U , k_ra8_bkup_vbtbpsr_mask_vbporm = 0x10U , k_ra8_bkup_vbtbpsr_mask_swm = 0x20U }
	Single-bit masks for VBTBPSR. More...
enum	ra8_bkup_vbattmnselr_mask_t : uint8_t { k_ra8_bkup_vbattmnselr_mask_vbtmnsel = 0x01U }
	Single-bit masks for VBATTMNSELR (HUM Ch 12.2.5 p 503). More...
enum	ra8_bkup_vbtadsr_mask_t : uint8_t { k_ra8_bkup_vbtadsr_mask_vbtadf0 = 0x01U , k_ra8_bkup_vbtadsr_mask_vbtadf1 = 0x02U , k_ra8_bkup_vbtadsr_mask_vbtadf2 = 0x04U , k_ra8_bkup_vbtadsr_mask_all = 0x07U }
	Single-bit masks for VBTADSR tamper-detection flags (HUM Ch 12.2.14 p 510). More...
enum	ra8_bkup_vbtadcr1_mask_t : uint8_t { k_ra8_bkup_vbtadcr1_mask_vbtadie0 = 0x01U , k_ra8_bkup_vbtadcr1_mask_vbtadie1 = 0x02U , k_ra8_bkup_vbtadcr1_mask_vbtadie2 = 0x04U , k_ra8_bkup_vbtadcr1_mask_vbtadce0 = 0x10U , k_ra8_bkup_vbtadcr1_mask_vbtadce1 = 0x20U , k_ra8_bkup_vbtadcr1_mask_vbtadce2 = 0x40U , k_ra8_bkup_vbtadcr1_mask_ie_all = 0x07U , k_ra8_bkup_vbtadcr1_mask_ce_all = 0x70U }
	Bit masks for VBTADCR1 (HUM Ch 12.2.15 p 510). More...
enum	ra8_bkup_vbtadcr2_mask_t : uint8_t { k_ra8_bkup_vbtadcr2_mask_vbrtces0 = 0x01U , k_ra8_bkup_vbtadcr2_mask_vbrtces1 = 0x02U , k_ra8_bkup_vbtadcr2_mask_vbrtces2 = 0x04U , k_ra8_bkup_vbtadcr2_mask_all = 0x07U }
	Bit masks for VBTADCR2 (HUM Ch 12.2.16 p 511). More...
enum	ra8_bkup_vbtadcr3_mask_t : uint8_t { k_ra8_bkup_vbtadcr3_mask_vbtadze0 = 0x01U , k_ra8_bkup_vbtadcr3_mask_vbtadze1 = 0x02U , k_ra8_bkup_vbtadcr3_mask_vbtadze2 = 0x04U , k_ra8_bkup_vbtadcr3_mask_all = 0x07U }
	Bit masks for VBTADCR3 (HUM Ch 12.2.17 p 511). More...
enum	ra8_bkup_vbtictlr_mask_t : uint8_t { k_ra8_bkup_vbtictlr_mask_vch0inen = 0x01U , k_ra8_bkup_vbtictlr_mask_vch1inen = 0x02U , k_ra8_bkup_vbtictlr_mask_vch2inen = 0x04U , k_ra8_bkup_vbtictlr_mask_all = 0x07U }
	Bit masks for VBTICTLR (HUM Ch 12.2.8 p 505). More...
enum	ra8_bkup_vbtictlr2_mask_t : uint8_t { k_ra8_bkup_vbtictlr2_mask_vch0nce = 0x01U , k_ra8_bkup_vbtictlr2_mask_vch1nce = 0x02U , k_ra8_bkup_vbtictlr2_mask_vch2nce = 0x04U , k_ra8_bkup_vbtictlr2_mask_vch0eg = 0x10U , k_ra8_bkup_vbtictlr2_mask_vch1eg = 0x20U , k_ra8_bkup_vbtictlr2_mask_vch2eg = 0x40U , k_ra8_bkup_vbtictlr2_mask_nce_all = 0x07U , k_ra8_bkup_vbtictlr2_mask_eg_all = 0x70U }
	Bit masks for VBTICTLR2 (HUM Ch 12.2.9 p 506). More...
enum	ra8_bkup_vbtimonr_mask_t : uint8_t { k_ra8_bkup_vbtimonr_mask_vch0mon = 0x01U , k_ra8_bkup_vbtimonr_mask_vch1mon = 0x02U , k_ra8_bkup_vbtimonr_mask_vch2mon = 0x04U , k_ra8_bkup_vbtimonr_mask_all = 0x07U }
	Bit masks for VBTIMONR (HUM Ch 12.2.10 p 506). More...
enum	ra8_bkup_vbtncwcr_mask_t : uint8_t { k_ra8_bkup_vbtncwcr_mask_vincw = 0x07U }
	Bit masks for VBTNCWCR (HUM Ch 12.2.18 p 511). More...
enum	ra8_bkup_bbfsar_mask_t : uint32_t { k_ra8_bkup_bbfsar_mask_nonsec0 = 0x01UL , k_ra8_bkup_bbfsar_mask_nonsec1 = 0x02UL , k_ra8_bkup_bbfsar_mask_nonsec2 = 0x04UL , k_ra8_bkup_bbfsar_mask_nonsec3 = 0x08UL , k_ra8_bkup_bbfsar_mask_nonsec4 = 0x10UL , k_ra8_bkup_bbfsar_mask_nonsec5 = 0x20UL , k_ra8_bkup_bbfsar_mask_nonsec6 = 0x40UL , k_ra8_bkup_bbfsar_mask_all = 0x7FUL }
	BBFSAR target masks (HUM Ch 12.2.1 p 500). More...

Functions
static volatile uint8_t *	ra8_bkup_vbattmnselr (void)
	Pointer to 8-bit VBATTMNSELR (HUM Ch 12.2.5 p 503).
static volatile uint8_t *	ra8_bkup_vbtbpcr1 (void)
	Pointer to 8-bit VBTBPCR1 (HUM Ch 12.2.11 p 507).
static volatile uint8_t *	ra8_bkup_vbtber (void)
	Pointer to 8-bit VBTBER (HUM Ch 12.2.6 p 504).
static volatile uint8_t *	ra8_bkup_vbtbpcr2 (void)
	Pointer to 8-bit VBTBPCR2 (HUM Ch 12.2.12 p 508).
static volatile uint8_t *	ra8_bkup_vbtbpsr (void)
	Pointer to 8-bit VBTBPSR (HUM Ch 12.2.13 p 509).
static volatile uint8_t *	ra8_bkup_vbtadsr (void)
	Pointer to 8-bit VBTADSR (HUM Ch 12.2.14 p 509).
static volatile uint8_t *	ra8_bkup_vbtadcr1 (void)
	Pointer to 8-bit VBTADCR1 (HUM Ch 12.2.15 p 510).
static volatile uint8_t *	ra8_bkup_vbtadcr2 (void)
	Pointer to 8-bit VBTADCR2 (HUM Ch 12.2.16 p 511).
static volatile uint8_t *	ra8_bkup_vbtadcr3 (void)
	Pointer to 8-bit VBTADCR3 (HUM Ch 12.2.17 p 511).
static volatile uint8_t *	ra8_bkup_vbtictlr (void)
	Pointer to 8-bit VBTICTLR (HUM Ch 12.2.8 p 505).
static volatile uint8_t *	ra8_bkup_vbtictlr2 (void)
	Pointer to 8-bit VBTICTLR2 (HUM Ch 12.2.9 p 506).
static volatile uint8_t *	ra8_bkup_vbtimonr (void)
	Pointer to 8-bit VBTIMONR (HUM Ch 12.2.10 p 506).
static volatile uint8_t *	ra8_bkup_vbtncwcr (void)
	Pointer to 8-bit VBTNCWCR (HUM Ch 12.2.18 p 511).
static volatile uint32_t *	ra8_bkup_bbfsar (void)
	Pointer to 32-bit BBFSAR (HUM Ch 12.2.1 p 500).
static volatile uint16_t *	ra8_bkup_vbrsabar (void)
	Pointer to 16-bit VBRSABAR (HUM Ch 12.2.2 p 502).
static volatile uint16_t *	ra8_bkup_vbrpabars (void)
	Pointer to 16-bit VBRPABARS (HUM Ch 12.2.3 p 502).
static volatile uint16_t *	ra8_bkup_vbrpabarns (void)
	Pointer to 16-bit VBRPABARNS (HUM Ch 12.2.4 p 503).
static volatile uint8_t *	ra8_bkup_vbtbkr (uint16_t index)
	Pointer to one VBTBKRn byte (HUM Ch 12.2.7 p 505).
static volatile uint32_t *	ra8_bkup_vbtbkr_word (uint8_t word_index)
	Pointer to one VBTBKR 32-bit word slot (4 bytes).

Detailed Description

Battery Backup Function (VBATT / BAT*) register layout for the RA8D2.

The RA8D2 battery backup block lives inside the SYSC peripheral window (base 0x4001_E000, non-secure alias 0x5001_E000). The full SYSC layout is described in ra8_system_regs.h; this header narrowly mirrors only the BAT* / VBT* register offsets so the battery-backup driver can be reviewed and extended without touching the shared system header.

Map (HUM Ch 12 "Battery Backup Function" p 498-519)

Offset	Reg	Width	Purpose
0x3B0	VBRSABAR	16	Backup-register secure / non-secure boundary
0x3B4	VBRPABARS	16	Backup-register privilege boundary (Secure)
0x3B8	VBRPABARNS	16	Backup-register privilege boundary (Non-sec)
0x3D0	BBFSAR	32	Battery Backup security attribute
0xA84	VBATTMNSELR	8	VBATT voltage-monitor function select
0xA88	VBTBPCR1	8	Battery power-supply switch stop
0xC40	VBTBER	8	VBATT backup-register access enable (VBAE)
0xC45	VBTBPCR2	8	VBATT VDETBATT level + VDETE
0xC46	VBTBPSR	8	VBATT power-supply status (VBPORF/VBPORM/SWM)
0xC48	VBTADSR	8	VBATT tamper-detection status (VBTADF[2:0])
0xC49	VBTADCR1	8	Tamper IRQ enable + backup-clear enable
0xC4A	VBTADCR2	8	RTC time-capture event source select
0xC4C	VBTICTLR	8	RTCICn input enable
0xC4D	VBTICTLR2	8	RTCICn edge / noise-canceller select
0xC4E	VBTIMONR	8	RTCICn live input level monitor
0xC50	VBTNCWCR	8	Noise canceller width select
0xC54	VBTADCR3	8	Tamper HUK Zeroization enable
0xD00	VBTBKRn	8	128 backup-register bytes (n = 0..127)

Copyright: Copyright (c) 2026 Brighton Sikarskie SPDX-License-Identifier: MIT

Definition in file ra8_bkup_regs.h.

Enumeration Type Documentation

◆ ra8_bkup_addr_t

enum ra8_bkup_addr_t : uintptr_t

Battery-backup register window base.

Same physical base as k_ra8_system_base_addr – the BAT* registers live inside the SYSC block. We expose a separate enum value so the bkup driver does not have to depend on the system header.

Enumerator
k_ra8_bkup_base_addr	SYSC + battery backup base.

Definition at line 59 of file ra8_bkup_regs.h.

◆ ra8_bkup_bbfsar_mask_t

enum ra8_bkup_bbfsar_mask_t : uint32_t

BBFSAR target masks (HUM Ch 12.2.1 p 500).

Enumerator
k_ra8_bkup_bbfsar_mask_nonsec0	VBATTMNSELR.
k_ra8_bkup_bbfsar_mask_nonsec1	VBTBER.
k_ra8_bkup_bbfsar_mask_nonsec2	VBTICTLR/2/MONR.
k_ra8_bkup_bbfsar_mask_nonsec3	VBTBPCR1/2 + VBTBPSR.
k_ra8_bkup_bbfsar_mask_nonsec4	VBTADSR/CR1/CR2.
k_ra8_bkup_bbfsar_mask_nonsec5	VBTADCR3.
k_ra8_bkup_bbfsar_mask_nonsec6	VBTNCWCR.
k_ra8_bkup_bbfsar_mask_all	All NONSEC bits.

Definition at line 242 of file ra8_bkup_regs.h.

◆ ra8_bkup_limits_t

enum ra8_bkup_limits_t : uint16_t

Backup-register array dimensions and small numeric limits.

Enumerator
k_ra8_bkup_reg_count	128 byte-wide VBTBKRn slots.
k_ra8_bkup_reg_stride	1 byte per VBTBKRn entry.
k_ra8_bkup_word_count	128 bytes / 4 = 32 uint32_t words.
k_ra8_bkup_word_stride	Bytes per uint32_t word.
k_ra8_bkup_chan_count	RTCIC0..RTCIC2 tamper channels.
k_ra8_bkup_saba_align	SABA boundary granularity (HUM Ch 12.2.2).
k_ra8_bkup_saba_align_mask	Lower-5-bits-must-be-zero mask.
k_ra8_bkup_saba_max	Maximum boundary address (last 32-byte slot).

Definition at line 95 of file ra8_bkup_regs.h.

◆ ra8_bkup_off_t

enum ra8_bkup_off_t : uint16_t

Byte-offsets of every BAT* / VBT* register the driver touches.

Citations are HUM Ch 12.2.x section numbers, all inside p 498..519.

Enumerator
k_ra8_bkup_off_vbrsabar	VBRSABAR Ch 12.2.2 p 502.
k_ra8_bkup_off_vbrpabars	VBRPABARS Ch 12.2.3 p 502.
k_ra8_bkup_off_vbrpabarns	VBRPABARNS Ch 12.2.4 p 503.
k_ra8_bkup_off_bbfsar	BBFSAR Ch 12.2.1 p 500.
k_ra8_bkup_off_vbattmnselr	VBATTMNSELR Ch 12.2.5 p 503.
k_ra8_bkup_off_vbtbpcr1	VBTBPCR1 Ch 12.2.11 p 507.
k_ra8_bkup_off_vbtber	VBTBER Ch 12.2.6 p 504.
k_ra8_bkup_off_vbtbpcr2	VBTBPCR2 Ch 12.2.12 p 508.
k_ra8_bkup_off_vbtbpsr	VBTBPSR Ch 12.2.13 p 509.
k_ra8_bkup_off_vbtadsr	VBTADSR Ch 12.2.14 p 509.
k_ra8_bkup_off_vbtadcr1	VBTADCR1 Ch 12.2.15 p 510.
k_ra8_bkup_off_vbtadcr2	VBTADCR2 Ch 12.2.16 p 511.
k_ra8_bkup_off_vbtictlr	VBTICTLR Ch 12.2.8 p 505.
k_ra8_bkup_off_vbtictlr2	VBTICTLR2 Ch 12.2.9 p 506.
k_ra8_bkup_off_vbtimonr	VBTIMONR Ch 12.2.10 p 506.
k_ra8_bkup_off_vbtncwcr	VBTNCWCR Ch 12.2.18 p 511.
k_ra8_bkup_off_vbtadcr3	VBTADCR3 Ch 12.2.17 p 511.
k_ra8_bkup_off_vbtbkr0	VBTBKR0..127 Ch 12.2.7 p 505.

Definition at line 70 of file ra8_bkup_regs.h.

◆ ra8_bkup_vbattmnselr_mask_t

enum ra8_bkup_vbattmnselr_mask_t : uint8_t

Single-bit masks for VBATTMNSELR (HUM Ch 12.2.5 p 503).

Enumerator
k_ra8_bkup_vbattmnselr_mask_vbtmnsel	VBTMNSEL @ bit 0.

Definition at line 168 of file ra8_bkup_regs.h.

◆ ra8_bkup_vbtadcr1_mask_t

enum ra8_bkup_vbtadcr1_mask_t : uint8_t

Bit masks for VBTADCR1 (HUM Ch 12.2.15 p 510).

Enumerator
k_ra8_bkup_vbtadcr1_mask_vbtadie0	VBTADIE0 @ bit 0.
k_ra8_bkup_vbtadcr1_mask_vbtadie1	VBTADIE1 @ bit 1.
k_ra8_bkup_vbtadcr1_mask_vbtadie2	VBTADIE2 @ bit 2.
k_ra8_bkup_vbtadcr1_mask_vbtadce0	VBTADCE0 @ bit 4.
k_ra8_bkup_vbtadcr1_mask_vbtadce1	VBTADCE1 @ bit 5.
k_ra8_bkup_vbtadcr1_mask_vbtadce2	VBTADCE2 @ bit 6.
k_ra8_bkup_vbtadcr1_mask_ie_all	All IE bits.
k_ra8_bkup_vbtadcr1_mask_ce_all	All CE bits.

Definition at line 181 of file ra8_bkup_regs.h.

◆ ra8_bkup_vbtadcr2_mask_t

enum ra8_bkup_vbtadcr2_mask_t : uint8_t

Bit masks for VBTADCR2 (HUM Ch 12.2.16 p 511).

Enumerator
k_ra8_bkup_vbtadcr2_mask_vbrtces0	VBRTCES0 @ bit 0.
k_ra8_bkup_vbtadcr2_mask_vbrtces1	VBRTCES1 @ bit 1.
k_ra8_bkup_vbtadcr2_mask_vbrtces2	VBRTCES2 @ bit 2.
k_ra8_bkup_vbtadcr2_mask_all	All event-source bits.

Definition at line 193 of file ra8_bkup_regs.h.

◆ ra8_bkup_vbtadcr3_mask_t

enum ra8_bkup_vbtadcr3_mask_t : uint8_t

Bit masks for VBTADCR3 (HUM Ch 12.2.17 p 511).

Enumerator
k_ra8_bkup_vbtadcr3_mask_vbtadze0	VBTADZE0 @ bit 0.
k_ra8_bkup_vbtadcr3_mask_vbtadze1	VBTADZE1 @ bit 1.
k_ra8_bkup_vbtadcr3_mask_vbtadze2	VBTADZE2 @ bit 2.
k_ra8_bkup_vbtadcr3_mask_all	All zeroize bits.

Definition at line 201 of file ra8_bkup_regs.h.

◆ ra8_bkup_vbtadsr_mask_t

enum ra8_bkup_vbtadsr_mask_t : uint8_t

Single-bit masks for VBTADSR tamper-detection flags (HUM Ch 12.2.14 p 510).

Enumerator
k_ra8_bkup_vbtadsr_mask_vbtadf0	VBTADF0: RTCIC0 event.
k_ra8_bkup_vbtadsr_mask_vbtadf1	VBTADF1: RTCIC1 event.
k_ra8_bkup_vbtadsr_mask_vbtadf2	VBTADF2: RTCIC2 event.
k_ra8_bkup_vbtadsr_mask_all	Combined VBTADF[2:0].

Definition at line 173 of file ra8_bkup_regs.h.

◆ ra8_bkup_vbtber_bit_t

enum ra8_bkup_vbtber_bit_t : uint8_t

Bit positions inside VBTBER (HUM Ch 12.2.6 p 504).

Enumerator
k_ra8_bkup_vbtber_bit_vbae	VBAE: VBTBKRn access enable.

Definition at line 110 of file ra8_bkup_regs.h.

◆ ra8_bkup_vbtber_mask_t

enum ra8_bkup_vbtber_mask_t : uint8_t

Single-bit masks for VBTBER fields.

Enumerator
k_ra8_bkup_vbtber_mask_vbae	VBAE @ bit 3.

Definition at line 118 of file ra8_bkup_regs.h.

◆ ra8_bkup_vbtbpcr1_bit_t

enum ra8_bkup_vbtbpcr1_bit_t : uint8_t

Bit positions inside VBTBPCR1 (HUM Ch 12.2.11 p 507).

Enumerator
k_ra8_bkup_vbtbpcr1_bit_bpwswstp	Battery power-supply switch stop.

Definition at line 126 of file ra8_bkup_regs.h.

◆ ra8_bkup_vbtbpcr1_mask_t

enum ra8_bkup_vbtbpcr1_mask_t : uint8_t

Single-bit masks for VBTBPCR1.

Enumerator
k_ra8_bkup_vbtbpcr1_mask_bpwswstp	BPWSWSTP @ bit 0.

Definition at line 131 of file ra8_bkup_regs.h.

◆ ra8_bkup_vbtbpcr2_bit_t

enum ra8_bkup_vbtbpcr2_bit_t : uint8_t

Bit positions inside VBTBPCR2 (HUM Ch 12.2.12 p 508).

Enumerator
k_ra8_bkup_vbtbpcr2_bit_vdete	VDETE: VCC drop-detection enable.
k_ra8_bkup_vbtbpcr2_shift_lvl	VDETLVL[2:0] @ [2:0].

Definition at line 139 of file ra8_bkup_regs.h.

◆ ra8_bkup_vbtbpcr2_mask_t

enum ra8_bkup_vbtbpcr2_mask_t : uint8_t

Field masks for VBTBPCR2.

Enumerator
k_ra8_bkup_vbtbpcr2_mask_vdete	VDETE @ bit 4.
k_ra8_bkup_vbtbpcr2_mask_lvl	VDETLVL[2:0].

Definition at line 145 of file ra8_bkup_regs.h.

◆ ra8_bkup_vbtbpsr_bit_t

enum ra8_bkup_vbtbpsr_bit_t : uint8_t

Bit positions inside VBTBPSR (HUM Ch 12.2.13 p 509).

Enumerator
k_ra8_bkup_vbtbpsr_bit_vbporf	VBATT_POR flag (W0C).
k_ra8_bkup_vbtbpsr_bit_vbporm	VBATT_R level monitor.
k_ra8_bkup_vbtbpsr_bit_swm	Battery switch monitor.

Definition at line 154 of file ra8_bkup_regs.h.

◆ ra8_bkup_vbtbpsr_mask_t

enum ra8_bkup_vbtbpsr_mask_t : uint8_t

Single-bit masks for VBTBPSR.

Enumerator
k_ra8_bkup_vbtbpsr_mask_vbporf	VBATT_POR flag.
k_ra8_bkup_vbtbpsr_mask_vbporm	VBATT_R OK.
k_ra8_bkup_vbtbpsr_mask_swm	Switch monitor.

Definition at line 161 of file ra8_bkup_regs.h.

◆ ra8_bkup_vbtictlr2_mask_t

enum ra8_bkup_vbtictlr2_mask_t : uint8_t

Bit masks for VBTICTLR2 (HUM Ch 12.2.9 p 506).

Enumerator
k_ra8_bkup_vbtictlr2_mask_vch0nce	VCH0NCE @ bit 0.
k_ra8_bkup_vbtictlr2_mask_vch1nce	VCH1NCE @ bit 1.
k_ra8_bkup_vbtictlr2_mask_vch2nce	VCH2NCE @ bit 2.
k_ra8_bkup_vbtictlr2_mask_vch0eg	VCH0EG @ bit 4.
k_ra8_bkup_vbtictlr2_mask_vch1eg	VCH1EG @ bit 5.
k_ra8_bkup_vbtictlr2_mask_vch2eg	VCH2EG @ bit 6.
k_ra8_bkup_vbtictlr2_mask_nce_all	All NCE bits.
k_ra8_bkup_vbtictlr2_mask_eg_all	All EG bits.

Definition at line 217 of file ra8_bkup_regs.h.

◆ ra8_bkup_vbtictlr_mask_t

enum ra8_bkup_vbtictlr_mask_t : uint8_t

Bit masks for VBTICTLR (HUM Ch 12.2.8 p 505).

Enumerator
k_ra8_bkup_vbtictlr_mask_vch0inen	VCH0INEN @ bit 0.
k_ra8_bkup_vbtictlr_mask_vch1inen	VCH1INEN @ bit 1.
k_ra8_bkup_vbtictlr_mask_vch2inen	VCH2INEN @ bit 2.
k_ra8_bkup_vbtictlr_mask_all	All input-enable bits.

Definition at line 209 of file ra8_bkup_regs.h.

◆ ra8_bkup_vbtimonr_mask_t

enum ra8_bkup_vbtimonr_mask_t : uint8_t

Bit masks for VBTIMONR (HUM Ch 12.2.10 p 506).

Enumerator
k_ra8_bkup_vbtimonr_mask_vch0mon	VCH0MON @ bit 0.
k_ra8_bkup_vbtimonr_mask_vch1mon	VCH1MON @ bit 1.
k_ra8_bkup_vbtimonr_mask_vch2mon	VCH2MON @ bit 2.
k_ra8_bkup_vbtimonr_mask_all	All MON bits.

Definition at line 229 of file ra8_bkup_regs.h.

◆ ra8_bkup_vbtncwcr_mask_t

enum ra8_bkup_vbtncwcr_mask_t : uint8_t

Bit masks for VBTNCWCR (HUM Ch 12.2.18 p 511).

Enumerator
k_ra8_bkup_vbtncwcr_mask_vincw	VINCW[2:0] @ [2:0].

Definition at line 237 of file ra8_bkup_regs.h.

Function Documentation

◆ ra8_bkup_bbfsar()

volatile uint32_t * ra8_bkup_bbfsar ( void )

inlinestatic

Pointer to 32-bit BBFSAR (HUM Ch 12.2.1 p 500).

Definition at line 338 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, and k_ra8_bkup_off_bbfsar.

Referenced by ra8_bkup_security_apply(), and ra8_bkup_security_get().

◆ ra8_bkup_vbattmnselr()

volatile uint8_t * ra8_bkup_vbattmnselr ( void )

inlinestatic

Pointer to 8-bit VBATTMNSELR (HUM Ch 12.2.5 p 503).

Definition at line 259 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, and k_ra8_bkup_off_vbattmnselr.

Referenced by ra8_bkup_get_voltage_monitor_enabled(), and ra8_bkup_set_voltage_monitor().

◆ ra8_bkup_vbrpabarns()

volatile uint16_t * ra8_bkup_vbrpabarns ( void )

inlinestatic

Pointer to 16-bit VBRPABARNS (HUM Ch 12.2.4 p 503).

Definition at line 357 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, and k_ra8_bkup_off_vbrpabarns.

Referenced by ra8_bkup_security_apply(), and ra8_bkup_security_get().

◆ ra8_bkup_vbrpabars()

volatile uint16_t * ra8_bkup_vbrpabars ( void )

inlinestatic

Pointer to 16-bit VBRPABARS (HUM Ch 12.2.3 p 502).

Definition at line 350 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, and k_ra8_bkup_off_vbrpabars.

Referenced by ra8_bkup_security_apply(), and ra8_bkup_security_get().

◆ ra8_bkup_vbrsabar()

volatile uint16_t * ra8_bkup_vbrsabar ( void )

inlinestatic

Pointer to 16-bit VBRSABAR (HUM Ch 12.2.2 p 502).

Definition at line 344 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, and k_ra8_bkup_off_vbrsabar.

Referenced by ra8_bkup_security_apply(), and ra8_bkup_security_get().

◆ ra8_bkup_vbtadcr1()

volatile uint8_t * ra8_bkup_vbtadcr1 ( void )

inlinestatic

Pointer to 8-bit VBTADCR1 (HUM Ch 12.2.15 p 510).

Definition at line 296 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, and k_ra8_bkup_off_vbtadcr1.

Referenced by ra8_bkup_isr_handle(), ra8_bkup_no_switch_init(), ra8_bkup_tamper_disable(), and ra8_bkup_tamper_init().

◆ ra8_bkup_vbtadcr2()

volatile uint8_t * ra8_bkup_vbtadcr2 ( void )

inlinestatic

Pointer to 8-bit VBTADCR2 (HUM Ch 12.2.16 p 511).

Definition at line 302 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, and k_ra8_bkup_off_vbtadcr2.

Referenced by ra8_bkup_no_switch_init(), ra8_bkup_tamper_disable(), and ra8_bkup_tamper_init().

◆ ra8_bkup_vbtadcr3()

volatile uint8_t * ra8_bkup_vbtadcr3 ( void )

inlinestatic

Pointer to 8-bit VBTADCR3 (HUM Ch 12.2.17 p 511).

Definition at line 308 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, and k_ra8_bkup_off_vbtadcr3.

Referenced by ra8_bkup_tamper_disable(), and ra8_bkup_tamper_init().

◆ ra8_bkup_vbtadsr()

volatile uint8_t * ra8_bkup_vbtadsr ( void )

inlinestatic

Pointer to 8-bit VBTADSR (HUM Ch 12.2.14 p 509).

Definition at line 290 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, and k_ra8_bkup_off_vbtadsr.

Referenced by ra8_bkup_clear_status(), ra8_bkup_get_status(), ra8_bkup_init(), ra8_bkup_isr_handle(), ra8_bkup_no_switch_init(), ra8_bkup_tamper_disable(), and ra8_bkup_tamper_init().

◆ ra8_bkup_vbtber()

volatile uint8_t * ra8_bkup_vbtber ( void )

inlinestatic

Pointer to 8-bit VBTBER (HUM Ch 12.2.6 p 504).

Definition at line 272 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, and k_ra8_bkup_off_vbtber.

Referenced by ra8_bkup_deinit(), and ra8_bkup_init().

◆ ra8_bkup_vbtbkr()

volatile uint8_t * ra8_bkup_vbtbkr ( uint16_t index )

inlinestatic

Pointer to one VBTBKRn byte (HUM Ch 12.2.7 p 505).

Parameters

[in] index Backup-register index in 0..127. Out-of-range indices return nullptr (the caller is expected to validate, but the accessor is defensive).

Returns: Volatile pointer to the byte slot, or nullptr if index >= k_ra8_bkup_reg_count.

Definition at line 372 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, k_ra8_bkup_off_vbtbkr0, k_ra8_bkup_reg_count, and k_ra8_bkup_reg_stride.

Referenced by ra8_bkup_read_byte(), ra8_bkup_write_byte(), and ra8_bkup_zero_all().

◆ ra8_bkup_vbtbkr_word()

volatile uint32_t * ra8_bkup_vbtbkr_word ( uint8_t word_index )

inlinestatic

Pointer to one VBTBKR 32-bit word slot (4 bytes).

Parameters

[in] word_index Word index in 0..31. The 128-byte VBTBKRn array is little-endian per HUM Ch 12.2.7.

Returns: Volatile pointer to the word slot, or nullptr if out of range.

Definition at line 389 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, k_ra8_bkup_off_vbtbkr0, k_ra8_bkup_word_count, and k_ra8_bkup_word_stride.

Referenced by ra8_bkup_read_word(), and ra8_bkup_write_word().

◆ ra8_bkup_vbtbpcr1()

volatile uint8_t * ra8_bkup_vbtbpcr1 ( void )

inlinestatic

Pointer to 8-bit VBTBPCR1 (HUM Ch 12.2.11 p 507).

Definition at line 266 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, and k_ra8_bkup_off_vbtbpcr1.

Referenced by ra8_bkup_cold_start_init(), ra8_bkup_deinit(), ra8_bkup_init(), and ra8_bkup_no_switch_init().

◆ ra8_bkup_vbtbpcr2()

volatile uint8_t * ra8_bkup_vbtbpcr2 ( void )

inlinestatic

Pointer to 8-bit VBTBPCR2 (HUM Ch 12.2.12 p 508).

Definition at line 278 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, and k_ra8_bkup_off_vbtbpcr2.

Referenced by ra8_bkup_cold_start_init(), ra8_bkup_init(), and ra8_bkup_no_switch_init().

◆ ra8_bkup_vbtbpsr()

volatile uint8_t * ra8_bkup_vbtbpsr ( void )

inlinestatic

Pointer to 8-bit VBTBPSR (HUM Ch 12.2.13 p 509).

Definition at line 284 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, and k_ra8_bkup_off_vbtbpsr.

Referenced by ra8_bkup_clear_status(), ra8_bkup_cold_start_init(), ra8_bkup_get_status(), ra8_bkup_init(), ra8_bkup_no_switch_init(), and ra8_bkup_warm_start_check().

◆ ra8_bkup_vbtictlr()

volatile uint8_t * ra8_bkup_vbtictlr ( void )

inlinestatic

Pointer to 8-bit VBTICTLR (HUM Ch 12.2.8 p 505).

Definition at line 314 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, and k_ra8_bkup_off_vbtictlr.

Referenced by ra8_bkup_no_switch_init(), ra8_bkup_set_input_enable(), ra8_bkup_tamper_disable(), and ra8_bkup_tamper_init().

◆ ra8_bkup_vbtictlr2()

volatile uint8_t * ra8_bkup_vbtictlr2 ( void )

inlinestatic

Pointer to 8-bit VBTICTLR2 (HUM Ch 12.2.9 p 506).

Definition at line 320 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, and k_ra8_bkup_off_vbtictlr2.

Referenced by ra8_bkup_no_switch_init(), ra8_bkup_tamper_disable(), and ra8_bkup_tamper_init().

◆ ra8_bkup_vbtimonr()

volatile uint8_t * ra8_bkup_vbtimonr ( void )

inlinestatic

Pointer to 8-bit VBTIMONR (HUM Ch 12.2.10 p 506).

Definition at line 326 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, and k_ra8_bkup_off_vbtimonr.

Referenced by ra8_bkup_read_input().

◆ ra8_bkup_vbtncwcr()

volatile uint8_t * ra8_bkup_vbtncwcr ( void )

inlinestatic

Pointer to 8-bit VBTNCWCR (HUM Ch 12.2.18 p 511).

Definition at line 332 of file ra8_bkup_regs.h.

References k_ra8_bkup_base_addr, and k_ra8_bkup_off_vbtncwcr.

Referenced by ra8_bkup_tamper_init().

Enumerations

Functions

Detailed Description

Map (HUM Ch 12 "Battery Backup Function" p 498-519)

Enumeration Type Documentation

◆ ra8_bkup_addr_t

◆ ra8_bkup_bbfsar_mask_t

◆ ra8_bkup_limits_t

◆ ra8_bkup_off_t

◆ ra8_bkup_vbattmnselr_mask_t

◆ ra8_bkup_vbtadcr1_mask_t

◆ ra8_bkup_vbtadcr2_mask_t

◆ ra8_bkup_vbtadcr3_mask_t

◆ ra8_bkup_vbtadsr_mask_t

◆ ra8_bkup_vbtber_bit_t

◆ ra8_bkup_vbtber_mask_t

◆ ra8_bkup_vbtbpcr1_bit_t

◆ ra8_bkup_vbtbpcr1_mask_t

◆ ra8_bkup_vbtbpcr2_bit_t

◆ ra8_bkup_vbtbpcr2_mask_t

◆ ra8_bkup_vbtbpsr_bit_t

◆ ra8_bkup_vbtbpsr_mask_t

◆ ra8_bkup_vbtictlr2_mask_t

◆ ra8_bkup_vbtictlr_mask_t

◆ ra8_bkup_vbtimonr_mask_t

◆ ra8_bkup_vbtncwcr_mask_t

Function Documentation

◆ ra8_bkup_bbfsar()

◆ ra8_bkup_vbattmnselr()

◆ ra8_bkup_vbrpabarns()

◆ ra8_bkup_vbrpabars()

◆ ra8_bkup_vbrsabar()

◆ ra8_bkup_vbtadcr1()

◆ ra8_bkup_vbtadcr2()

◆ ra8_bkup_vbtadcr3()

◆ ra8_bkup_vbtadsr()

◆ ra8_bkup_vbtber()

◆ ra8_bkup_vbtbkr()

◆ ra8_bkup_vbtbkr_word()

◆ ra8_bkup_vbtbpcr1()

◆ ra8_bkup_vbtbpcr2()

◆ ra8_bkup_vbtbpsr()

◆ ra8_bkup_vbtictlr()

◆ ra8_bkup_vbtictlr2()

◆ ra8_bkup_vbtimonr()

◆ ra8_bkup_vbtncwcr()