Texas Instruments TMS320C645x manual Set Data Register Setdata

Registers

5.4Set Data Register (SET_DATA)

The GPIO set data register (SET_DATA) is shown in Figure 6 and described in Table 6. SET_DATA provides an alternate means of driving GPIO outputs high. Writing a 1 to a bit of SET_DATA sets the corresponding bit in OUT_DATA. Writing a 0 has no effect. Reading SET_DATA returns the contents of OUT_DATA.

Figure 6.	Set Data Register (SET_DATA)
31							16
			Reserved
			R-0
15	14	13	12	11	10	9	8
SET15	SET14	SET13	SET12	SET11	SET10	SET9	SET8
R/W-0	R/W-0	R/W-0	R/W-0	R/W-0	R/W-0	R/W-0	R/W-0
7	6	5	4	3	2	1	0
SET7	SET6	SET5	SET4	SET3	SET2	SET1	SET0
R/W-0	R/W-0	R/W-0	R/W-0	R/W-0	R/W-0	R/W-0	R/W-0
Legend: R = Read only; R/W = Read/Write; -n= value after reset

Table 6.	Set Data Register (SET_DATA) Field Descriptions
Bit	Field	Value	Description
31−16	Reserved	0	Reserved. The reserved bit location is always read as 0. A value written to
			this field has no effect.
15−0	SETn		Writing 1 sets the corresponding bit the OUT_DATA register. Reading this
			register returns the contents of the OUT_DATA register. Writing a 0 has no
			effect.
		0	No effect
		1	Sets the corresponding bit in OUT_DATA

SPRU724 General-Purpose Input/Output (GPIO) 19