TMS320C6413_12 Datasheet, PDF (85/146 Pages) Texas Instruments – Fixed-Point Digital Signal Processors

General-Purpose Input/Output (GPIO)
Figure 4−5 shows the GPIO direction bits in the GPDIR register. This register determines if a given GPIO pin
is an input or an output providing the corresponding GPxEN bit is enabled (set to “1”) in the GPEN register.
By default, all the GPIO pins are configured as input pins.
31
24 23
16
Reserved
R-0
15
GP15
DIR
14
GP14
DIR
13
GP13
DIR
12
GP12
DIR
11
GP11
DIR
10
GP10
DIR
9
GP9
DIR
8
GP8
DIR
7
GP7
DIR
6
GP6
DIR
5
GP5
DIR
4
GP4
DIR
3
GP3
DIR
2
GP2
DIR
1
GP1
DIR
0
GP0
DIR
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 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/W = Readable/Writeable; -n = value after reset, -x = undefined value after reset
Figure 4−5. GPIO Direction Register (GPDIR) [Hex Address: 01B0 0004]
For more detailed information on general-purpose inputs/outputs (GPIOs), see the TMS320C6000 DSP
General-Purpose Input/Output (GPIO) Reference Guide (literature number SPRU584).
April 2004 − Revised January 2006
SPRS247F
85