5.5.3 Set Digital Input and Read Port or Query Digital I/O Port

Table 5-75. Format
Firmware Version 1.0	Firmware Version 1.2 and Later
`\|I,<hex16>`	`QIO,<hex16>`
Note: All firmware version 1.0 syntax remains valid in version 1.2 and later.

Command |I or QIO reads multiple digital I/O values and anticipates a single input parameter representing the digital I/O ports to be read. The input parameter is the digital I/O pin bitmap in the 16-bit hex format, with the I/O pin bitmap format detailed in the following table. The response to the |I or QIO command is also a bitmap. If the corresponding pin to be read is high, the corresponding bit in the response is set; otherwise, the bit is cleared

Table 5-76. Digital I/O Bitmap
Bitmap	RNBD350 Pins
0001	GPIO_PIN_RA3
0002	GPIO_PIN_RA8
0004	GPIO_PIN_RA9
0008	GPIO_PIN_RA10
0010	GPIO_PIN_RB4
0020	GPIO_PIN_RB5
0040	GPIO_PIN_RB8


Item	Firmware Version 1.0 and Later	Description
Example:	`\|I,0003`	Read digital I/O GPIO_PIN_RA3 and GPIO_PIN_RA8. If return value is 0002, GPIO_PIN_RA3 is low and GPIO_PIN_RA8 is high.
Response:	`AOK`	Success
Response:	`Err`	Syntax error, invalid parameter


Item	Firmware Version 1.2 and Later	Description
Example:	`QIO,0003`	Read digital I/O GPIO_PIN_RA3 and GPIO_PIN_RA8. If return value is 0002, GPIO_PIN_RA3 is low and GPIO_PIN_RA8 is high.
Response:	`AOK`	Success
Response:	`Err`	Syntax error, invalid parameter