Intel: If you set the Peripheral Channel IO ports that can be added with the Intel eSPI Agent Core to output, reading through the eSPI interface will read the value zero.

IP

Category: IP

When the Peripheral Channel IO ports (eg PC_PORT80) that can be added by Intel eSPI Agent Core are set to output, even if you read the data written using PUT_IORD_SHORT after writing data from the eSPI Master using the PUT_IOWR_SHORT command, an unintended error occurs. The value All '0' is always read out.

If the Peripheral Channel IO ports are set to output, the written value cannot be read through the eSPI interface.

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