5.1.2.4 Info - Write GPIO Output

The SWI device version of the ATECC608A-TFLXTLS has a single GPIO pin configured as an output buffer. The output will default to a LOW value upon device power-up. The value of this output can be changed by using the INFO Command in GPIO Write mode.

Note: This command is only available for the SWI devices and can not be used with I²C devices

Upon successful completion the command will return a four byte response with the LSB indicating the value that the output was written to. If the command fails then a single error code byte will be returned.

Table 5-12. Input Parameters - Info GPIO Output Write
Opcode (1 Byte)	Mode (1 Byte)	Param (2 Bytes)	Data (0 Bytes)	Description
`0x30`	`0x03`	`0x00 02`	—	Write a value of Zero to the GPIO Output
`0x30`	`0x03`	`0x00 03`	—	Write a value of One to the GPIO Output

Table 5-13. Output Response - Info GPIO Output Write
Name	Response	Description
Response	`0x00 00 00 00`	Successful return value if GPIO has been written to a 0
	`0x00 00 00 01`	Successful return value if GPIO has been written to a 1
	`0xXX`	Single Byte Error code upon failure