Texas Instruments TMS320DM644x - Manual (Page 22)

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Registers
Table 9. GPIO Set Data Register (SET_DATAn) Field Descriptions
Bit Field Value Description
31-16 SETn Set output drive state of GPIO pin n. The SETn bit is used to set the output of pin n on GPIO bank 2I + 1
only when pin n is configured as an output (DIRn = 0). The SETn bit is ignored when GPIO pin n is
configured as an input. Writing a 1 to the SETn bit sets the output drive state of the corresponding GPIO
pin n; reading the SETn bit returns the output drive state of the corresponding GPIO pin n. This bit field
configures the GPIO pins on GPIO banks 1 and 3.
0 No effect.
1 Set GPIO pin n output to 1.
15-0 SETn Set output drive state of GPIO pin n. The SETn bit is used to set the output of pin n on GPIO bank 2I only
when pin n is configured as an output (DIRn = 0). The SETn bit is ignored when GPIO pin n is configured
as an input. Writing a 1 to the SETn bit sets the output drive state of the corresponding GPIO pin n;
reading the SETn bit returns the output drive state of the corresponding GPIO pin n. This bit field
configures the GPIO pins on GPIO banks 0, 2, and 4.
0 No effect.
1 Set GPIO pin n output to 1.
General-Purpose Input/Output (GPIO) 22 SPRUE25 – December 2005