PSEL codes for peripheral pin routing on the RA8D2. More...

#include <stdint.h>

Include dependency graph for ra8_gpio_constants.h:

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Enumerations
enum	ra8_psel_t : uint8_t { k_ra8_psel_gpio = 0x00U , k_ra8_psel_agt = 0x01U , k_ra8_psel_gpt_trig = 0x02U , k_ra8_psel_gpt0 = 0x03U , k_ra8_psel_sci_async = 0x04U , k_ra8_psel_sci_sync = 0x05U , k_ra8_psel_spi = 0x06U , k_ra8_psel_iic = 0x07U , k_ra8_psel_rtc_clkout = 0x09U , k_ra8_psel_cac_adc = 0x0AU , k_ra8_psel_bus = 0x0BU , k_ra8_psel_sci_de = 0x0DU , k_ra8_psel_sci_alt = 0x0EU , k_ra8_psel_ceu = 0x0FU , k_ra8_psel_can = 0x10U , k_ra8_psel_ssie = 0x12U , k_ra8_psel_usb_fs = 0x13U , k_ra8_psel_usb_hs = 0x14U , k_ra8_psel_sdhi = 0x15U , k_ra8_psel_ether_mii = 0x16U , k_ra8_psel_ether_rmii = 0x17U , k_ra8_psel_ether_rgmii = 0x18U , k_ra8_psel_glcdc = 0x19U , k_ra8_psel_pdm = 0x1BU , k_ra8_psel_qspi = 0x1CU , k_ra8_psel_ulpt = 0x1EU , k_ra8_psel_adc_b = 0x00U , k_ra8_psel_dac = 0x00U }
	Peripheral-function select codes (written to PSEL[4:0]). More...

Detailed Description

PSEL codes for peripheral pin routing on the RA8D2.

Supplements ra8_port_constants.h with peripheral-function codes that go into the PmnPFS.PSEL[28:24] field when you want a pin to act as a peripheral input/output instead of a plain GPIO.

The codes come from RA8D2 Hardware User's Manual section 20.4 ("Peripheral I/O Table") – only the common ones are listed here; extend as drivers need more.

Usage:

volatile uint32_t* pfs = ra8_pfs_pmn(k_ra8_port_3, k_ra8_pin_0);
ra8_pfs_pwpr_unlock();
*pfs = (uint32_t)k_ra8_pfs_mask_pmr |
       ((uint32_t)k_ra8_psel_sci0_txd << k_ra8_pfs_bit_psel0);
ra8_pfs_pwpr_lock();

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

Definition in file ra8_gpio_constants.h.

Enumeration Type Documentation

◆ ra8_psel_t

enum ra8_psel_t : uint8_t

Peripheral-function select codes (written to PSEL[4:0]).

The PSEL field is 5 bits wide. Values below are taken from HUM Ch 20 "I/O Ports" section 20.6 "Peripheral Select Settings for Each Product" (R01UH1065EJ0130, p 855-870). Each entry is the binary code that appears in the per-port PSEL[4:0] tables (Table 20.7..Table 20.21).

When a driver needs a code not listed here, add it and cite the HUM section number in the doc comment.

Enumerator
k_ra8_psel_gpio	00000b: GPIO / Hi-Z (PMR=0). HUM Tbl 20.7..20.21.
k_ra8_psel_agt	00001b: AGT input/output. HUM 20.6.
k_ra8_psel_gpt_trig	00010b: GPT trigger pins (GTETRGA/B). HUM 20.6.
k_ra8_psel_gpt0	00011b: GPT timer I/O (GTIOCnA/B). HUM 20.6.
k_ra8_psel_sci_async	00100b: SCI async serial (UART). HUM 20.6.
k_ra8_psel_sci_sync	00101b: SCI synchronous / simple SPI. HUM 20.6.
k_ra8_psel_spi	00110b: RSPI / SPI. HUM 20.6.
k_ra8_psel_iic	00111b: IIC / I3C controller-peripheral. HUM 20.6.
k_ra8_psel_rtc_clkout	01001b: RTC/CLKOUT/ACMPHS/ETHPHYCLK. HUM 20.6.
k_ra8_psel_cac_adc	01010b: CAC / ADC16H trigger. HUM 20.6.
k_ra8_psel_bus	01011b: External BUS interface. HUM 20.6.
k_ra8_psel_sci_de	01101b: SCI driver-enable (DE). HUM 20.6.
k_ra8_psel_sci_alt	01110b: SCI alternate function. HUM 20.6.
k_ra8_psel_ceu	01111b: CEU camera capture. HUM 20.6.
k_ra8_psel_can	10000b: CANFD. HUM 20.6.
k_ra8_psel_ssie	10010b: SSIE I2S audio. HUM 20.6.
k_ra8_psel_usb_fs	10011b: USB Full-Speed. HUM 20.6.
k_ra8_psel_usb_hs	10100b: USB High-Speed (e.g. USBHS_VBUS). HUM 20.6.
k_ra8_psel_sdhi	10101b: SDHI SD / MMC. HUM 20.6.
k_ra8_psel_ether_mii	10110b: ESWM (GMII / MII). HUM 20.6.
k_ra8_psel_ether_rmii	10111b: ESWM (RMII). HUM 20.6.
k_ra8_psel_ether_rgmii	11000b: ESWM (RGMII). HUM 20.6.
k_ra8_psel_glcdc	11001b: Graphics LCD Controller outputs. HUM 20.6.
k_ra8_psel_pdm	11011b: PDM-IF (PDMCLKn / PDMDATn). HUM 20.6.
k_ra8_psel_qspi	11100b: OSPI / Octo-SPI / xSPI. HUM 20.6.
k_ra8_psel_ulpt	11110b: ULPT ultra-low-power timer. HUM 20.6.
k_ra8_psel_adc_b	Analog input (ASEL=1 + PMR=0).
k_ra8_psel_dac	DAC output (ASEL=1 + PMR=0).

Definition at line 51 of file ra8_gpio_constants.h.

Enumerations

Detailed Description

Enumeration Type Documentation

◆ ra8_psel_t