MCAL DIO Port Pins Write

Write logical value to groups of pins or individual channels on a specified DIO port

Since R2026a

• 

Libraries:
Embedded Coder Support Package for Renesas RH850 Microcontrollers / Microcontroller Abstraction Layer (MCAL) Blocks

Description

Use the MCAL DIO Port Pins Write block to write values to all channels of the specified Digital Input/Output (DIO) port or to write values to a specified group of channels within a Digital Input/Output (DIO) port, as defined in the Configuration Description File (CDF).

Before using this block, configure pin modes and DIO channels, select the Configuration Description File (CDF) in Simulink model configuration, and then integrate the block into your target-specific model for code generation and deployment. For information on configuring correct and portable Digital Input/Output (DIO) workflow using the MCAL DIO module in Simulink and AUTOSAR-based projects, see Getting Started With DIO Using MCAL.

Examples

Getting Started with MCAL DIO Blocks on Renesas RH850 Microcontrollers

Control a digital output on a Renesas RH850/U2A16 Microcontroller using the AUTOSAR MCAL DIO Channel Write block in Simulink. The example uses an onboard LED to demonstrate how MCAL DIO configuration and model-based design work together to generate, deploy, and run the model on RH850 hardware to drive an LED.

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Model-Based BLDC Motor Control on Renesas RH850 U2A Microcontroller Using Simulink

Use the Embedded Coder Support Package for Renesas RH850 Microcontrollers to implement and deploy sensorless Brushless DC (BLDC) motor control on a Renesas RH850 Microcontroller using model-based design in Simulink. You will simulate, generate code, and run both open-loop and closed-loop control strategies, leveraging the Renesas Motor Control Kit.

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Ports

Input

Channel00 — Input signal for the first pin/channel

scalar

Provides the logical state for the first pin/channel as a scalar input. The numeric suffix (00 -15) for the channel reflects the value specified in the Pins parameter.

Dependencies

To enable this port, Separate input for each pin parameter must be selected.

Data Types: int8 | uint8 | uint32 | Boolean

Pin(s) — Input signal

scalar | vector

Provides the logical state (high/low) for each pin in the group as a vector input.

Dependencies

To enable this port, Separate input for each pin parameter must be cleared.

Data Types: int8 | uint8 | uint32 | Boolean

Parameters

Port identifier — Dio port for pin write

DioPort (default)

Specify the unique identifier for the DIO port. This links the block to a specific DIO hardware instance or configuration. Click Get dio ports to view and select from the list of port names configured in the given CDF.

Programmatic Use

Block Parameter: Port

Select group of pins/channels — Enable to specify a group of pins or channels

on (default) | off

Select this parameter to specify a group of pins or channels to write to.

Programmatic Use

Block Parameter: IndividualPinsWrite

Pin(s) — pins/channels to write

0 (default)

Specify the pin or channel index (0–15) to write to. The specified value is appended as a numeric suffix to the Channel00 input port. For example, specifying 1, results in the input port name Channel01.

Programmatic Use

Block Parameter: PinNumbers

Separate input for each pin — Enable to add input port for specified pin/channel

off (default) | on

Select this parameter to add a separate input port for each specified pin/channel. When disabled, a single vector input port is used for all pins.

Programmatic Use

Block Parameter: EachPinAsInput

Port data type — Data type for port values

uint16 (default) | uint8 | uint32

Select the data type of the output signal for the port values read from the specified DIO port. This parameter determines the format in which the logical states of the selected group of pins/channels are output from the block.

Dependencies

To enable the Port data type parameter, clear either the Select group of pins/channels parameter or Separate input for each pin.

Programmatic Use

Block Parameter: PortDataType

Version History

Introduced in R2026a