tiva-c-pinctrl.h File Reference

Tiva C pinctrl encoding definitions. More...

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Macros
#define	TIVA_C_PORT_SHIFT   0
	Bit shift for the GPIO port field.
#define	TIVA_C_PORT_MASK   0x7
	Bit mask for the GPIO port field.
#define	TIVA_C_PIN_SHIFT   16
	Bit shift for the GPIO pin field.
#define	TIVA_C_PIN_MASK   0x7
	Bit mask for the GPIO pin field.
#define	TIVA_C_MUX_SHIFT   19
	Bit shift for the mux function field.
#define	TIVA_C_MUX_MASK   0xF
	Bit mask for the mux function field.
#define	TIVA_C_TYPE_SHIFT   23
	Bit shift for the pin type field.
#define	TIVA_C_TYPE_MASK   0x7
	Bit mask for the pin type field.
#define	TIVA_C_PORT_A   0
	GPIO Port A identifier.
#define	TIVA_C_PORT_B   1
	GPIO Port B identifier.
#define	TIVA_C_PORT_C   2
	GPIO Port C identifier.
#define	TIVA_C_PORT_D   3
	GPIO Port D identifier.
#define	TIVA_C_PORT_E   4
	GPIO Port E identifier.
#define	TIVA_C_PORT_F   5
	GPIO Port F identifier.
#define	TIVA_C_TYPE_GPIO   0
	GPIO pin type.
#define	TIVA_C_TYPE_UART   1
	UART pin type.
#define	TIVA_C_TYPE_I2C   2
	I2C SDA pin type.
#define	TIVA_C_TYPE_I2C_SCL   3
	I2C SCL pin type.
#define	TIVA_C_TYPE_SSI   4
	SSI pin type.
#define	TIVA_C_TYPE_CAN   5
	CAN pin type.
#define	TIVA_C_TYPE_PWM   6
	PWM pin type.
#define	TIVA_C_PINMUX(port, pin, mux, type)
	Encode a 32-bit Tiva C pinmux value.
#define	TIVA_C_PINMUX_PORT(pm)
	Extract GPIO port from an encoded pinmux value.
#define	TIVA_C_PINMUX_PIN(pm)
	Extract GPIO pin from an encoded pinmux value.
#define	TIVA_C_PINMUX_MUX(pm)
	Extract mux function from an encoded pinmux value.
#define	TIVA_C_PINMUX_TYPE(pm)
	Extract peripheral type from an encoded pinmux value.
#define	TIVA_C_PULL_UP_SHIFT   26
	Bit position of the pull-up flag.
#define	TIVA_C_PULL_DOWN_SHIFT   27
	Bit position of the pull-down flag.
#define	TIVA_C_OPEN_DRAIN_SHIFT   28
	Bit position of the open-drain flag.
#define	TIVA_C_PINMUX_PULL_UP(pm)
	Return the encoded pull-up flag.
#define	TIVA_C_PINMUX_PULL_DOWN(pm)
	Return the encoded pull-down flag.
#define	TIVA_C_PINMUX_OPEN_DRAIN(pm)
	Return the encoded open-drain flag.
#define	TIVA_C_PINCFG_PORT_SHIFT   16
	Bit shift for pin configuration port field.
#define	TIVA_C_PINCFG_PIN_SHIFT   10
	Bit shift for pin configuration pin field.

Detailed Description

Tiva C pinctrl encoding definitions.

SPDX-License-Identifier: Apache-2.0 Copyright (c) 2026 Linumiz

Macro Definition Documentation

TIVA_C_MUX_MASK

#define TIVA_C_MUX_MASK   0xF

Bit mask for the mux function field.

TIVA_C_MUX_SHIFT

#define TIVA_C_MUX_SHIFT   19

Bit shift for the mux function field.

TIVA_C_OPEN_DRAIN_SHIFT

#define TIVA_C_OPEN_DRAIN_SHIFT   28

Bit position of the open-drain flag.

TIVA_C_PIN_MASK

#define TIVA_C_PIN_MASK   0x7

Bit mask for the GPIO pin field.

TIVA_C_PIN_SHIFT

#define TIVA_C_PIN_SHIFT   16

Bit shift for the GPIO pin field.

TIVA_C_PINCFG_PIN_SHIFT

#define TIVA_C_PINCFG_PIN_SHIFT   10

Bit shift for pin configuration pin field.

TIVA_C_PINCFG_PORT_SHIFT

#define TIVA_C_PINCFG_PORT_SHIFT   16

Bit shift for pin configuration port field.

TIVA_C_PINMUX

#define TIVA_C_PINMUX	(		port,
			pin,
			mux,
			type )

Value:

((((port) & TIVA_C_PORT_MASK) << TIVA_C_PORT_SHIFT) | \
 (((pin) & TIVA_C_PIN_MASK) << TIVA_C_PIN_SHIFT) | \
 (((mux) & TIVA_C_MUX_MASK) << TIVA_C_MUX_SHIFT) | \
 (((type) & TIVA_C_TYPE_MASK) << TIVA_C_TYPE_SHIFT))

Encode a 32-bit Tiva C pinmux value.

Parameters

port	GPIO port identifier.
pin	GPIO pin number.
mux	Alternate function number.
type	Peripheral type.

Returns

Encoded pinmux value.

TIVA_C_PINMUX_MUX

#define TIVA_C_PINMUX_MUX

(

pm

)

Value:

(((pm) >> TIVA_C_MUX_SHIFT) & TIVA_C_MUX_MASK)

Extract mux function from an encoded pinmux value.

TIVA_C_PINMUX_OPEN_DRAIN

#define TIVA_C_PINMUX_OPEN_DRAIN

(

pm

)

Value:

(((pm) >> TIVA_C_OPEN_DRAIN_SHIFT) & 0x1U)

Return the encoded open-drain flag.

TIVA_C_PINMUX_PIN

#define TIVA_C_PINMUX_PIN

(

pm

)

Value:

(((pm) >> TIVA_C_PIN_SHIFT) & TIVA_C_PIN_MASK)

Extract GPIO pin from an encoded pinmux value.

TIVA_C_PINMUX_PORT

#define TIVA_C_PINMUX_PORT

(

pm

)

Value:

(((pm) >> TIVA_C_PORT_SHIFT) & TIVA_C_PORT_MASK)

Extract GPIO port from an encoded pinmux value.

TIVA_C_PINMUX_PULL_DOWN

#define TIVA_C_PINMUX_PULL_DOWN

(

pm

)

Value:

(((pm) >> TIVA_C_PULL_DOWN_SHIFT) & 0x1U)

Return the encoded pull-down flag.

TIVA_C_PINMUX_PULL_UP

#define TIVA_C_PINMUX_PULL_UP

(

pm

)

Value:

(((pm) >> TIVA_C_PULL_UP_SHIFT) & 0x1U)

Return the encoded pull-up flag.

TIVA_C_PINMUX_TYPE

#define TIVA_C_PINMUX_TYPE

(

pm

)

Value:

(((pm) >> TIVA_C_TYPE_SHIFT) & TIVA_C_TYPE_MASK)

Extract peripheral type from an encoded pinmux value.

TIVA_C_PORT_A

#define TIVA_C_PORT_A   0

GPIO Port A identifier.

TIVA_C_PORT_B

#define TIVA_C_PORT_B   1

GPIO Port B identifier.

TIVA_C_PORT_C

#define TIVA_C_PORT_C   2

GPIO Port C identifier.

TIVA_C_PORT_D

#define TIVA_C_PORT_D   3

GPIO Port D identifier.

TIVA_C_PORT_E

#define TIVA_C_PORT_E   4

GPIO Port E identifier.

TIVA_C_PORT_F

#define TIVA_C_PORT_F   5

GPIO Port F identifier.

TIVA_C_PORT_MASK

#define TIVA_C_PORT_MASK   0x7

Bit mask for the GPIO port field.

TIVA_C_PORT_SHIFT

#define TIVA_C_PORT_SHIFT   0

Bit shift for the GPIO port field.

TIVA_C_PULL_DOWN_SHIFT

#define TIVA_C_PULL_DOWN_SHIFT   27

Bit position of the pull-down flag.

TIVA_C_PULL_UP_SHIFT

#define TIVA_C_PULL_UP_SHIFT   26

Bit position of the pull-up flag.

TIVA_C_TYPE_CAN

#define TIVA_C_TYPE_CAN   5

CAN pin type.

TIVA_C_TYPE_GPIO

#define TIVA_C_TYPE_GPIO   0

GPIO pin type.

TIVA_C_TYPE_I2C

#define TIVA_C_TYPE_I2C   2

I2C SDA pin type.

TIVA_C_TYPE_I2C_SCL

#define TIVA_C_TYPE_I2C_SCL   3

I2C SCL pin type.

TIVA_C_TYPE_MASK

#define TIVA_C_TYPE_MASK   0x7

Bit mask for the pin type field.

TIVA_C_TYPE_PWM

#define TIVA_C_TYPE_PWM   6

PWM pin type.

TIVA_C_TYPE_SHIFT

#define TIVA_C_TYPE_SHIFT   23

Bit shift for the pin type field.

TIVA_C_TYPE_SSI

#define TIVA_C_TYPE_SSI   4

SSI pin type.

TIVA_C_TYPE_UART

#define TIVA_C_TYPE_UART   1

UART pin type.