Documentation

7-bit identifier to access the I2C Slave node.

Defines the number of bytes to read. Possible values (limited by the hardware buffer size) are between 0 and 256.

The I2C master can send a first byte to configure the slave. This input is available when the Enable Subindex Configuration parameter is checked.

The data retrieved.

Displays the error flag related to I2C acknowledge. This port is only available when the Show Acknowledge Error Port parameter is enabled.

This parameter associates a code module block with a configurable I/O module setup block. Set this value to match the Module ID defined in the setup block of the required configurable I/O module.

The number of the channel which this driver block entity will access. Only one channel per driver block can be addressed. You can specify channels in the range 1-N (N = the number of channels implemented in your specific configuration file defined in the Setup block).

Defines the base sample time at which this driver block gets its sample hit. This parameter can also be set to -1 for inherited sample time. The units are in seconds.

Configures the I2C transmission clock rate. When selecting Custom, any rate between f_FPGA/8 and f_FPGA/ (2¹⁶ − 1) can be specified. The rate is derived from the FPGA frequency using a clock divider; therefore, exact rates across the full specified range cannot always be achieved. The effective rate and the corresponding relative error are displayed.

Example: If the FPGA frequency is 75 MHz, then the corresponding frequency range is approximately 9.375 MHz to 1.144 kHz.

By checking this parameter, the driver output Data will indicate the I2C data received from the previous model step. This option reduces the TET. Otherwise, the driver actively waits for the I2C transfer (which increases the TET) to be finished and then the output Data contains the I2C data received from the current model step (for details see I2C Read Value from Previous Model Step)

By checking this parameter, an additional input becomes available which allows you to write one byte to the slave device before the read operation is initiated. This is useful if a register address to read from should be set before the read-operation will be done. (for details see I2C Read with Subindex)

By checking this parameter, an additional output becomes available which indicates the status of the acknowledge flag (1: error, 0: no error).