Texas-instruments TMS320C64x DSP Bedienungsanleitung Seite 251

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GPIO Registers
General Purpose I/O Operation5-10 SPRU629
Table 55. Video Port Pin Direction Register (PDIR) Field Descriptions (Continued)
Bit DescriptionValuesymval
field
8 PDIR8 PDIR8 bit controls the direction of the VDATA[98] pins.
VDATA8TO9IN 0 Pins function as input.
VDATA8TO9OUT 1 Pins function as output.
75
Reserved 0 Reserved. The reserved bit location is always read as 0.
A value written to this field has no effect.
4 PDIR4 PDIR4 bit controls the direction of the VDATA[74] pins.
VDATA4TO7IN 0 Pins function as input.
VDATA4TO7OUT 1 Pins function as output.
31
Reserved 0 Reserved. The reserved bit location is always read as 0.
A value written to this field has no effect.
0 PDIR0 PDIR0 bit controls the direction of the VDATA[30] pins.
VDATA0TO3IN 0 Pins function as input.
VDATA0TO3OUT 1 Pins function as output.
For CSL implementation, use the notation VP_PDIR_field_symval
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