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C6416 Datasheet(PDF) 70 Page - Texas Instruments

Part # C6416
Description  FIXD-POINT DIGITAL SIGNAL PROCESSORS
PDF  134 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

C6416 Datasheet(HTML) 70 Page - Texas Instruments

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SMJ320C6414, SMJ320C6415, SMJ320C6416
FIXEDPOINT DIGITAL SIGNAL PROCESSORS
SGUS050A − JANUARY 2004 − REVISED MARCH 2004
70
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251−1443
general-purpose input/output (GPIO)
To use the GP[15:0] software-configurable GPIO pins, the GPxEN bits in the GP Enable (GPEN) Register and
the GPxDIR bits in the GP Direction (GPDIR) Register must be properly configured.
GPxEN =
1
GP[x] pin is enabled
GPxDIR =
0
GP[x] pin is an input
GPxDIR =
1
GP[x] pin is an output
where “x” represents one of the 15 through 0 GPIO pins
Figure 6 shows the GPIO enable bits in the GPEN register for the C6414/C6415/C6416 device. To use any of
the GPx pins as general-purpose input/output functions, the corresponding GPxEN bit must be set to “1”
(enabled). Default values are device-specific, so refer to Figure 6 for the C6414/15/16 default configuration.
31
24
23
16
Reserved
R-0
15
14
13
12
11
10
9
8
7
6543
210
GP15
EN
GP14
EN
GP13
EN
GP12
EN
GP11
EN
GP10
EN
GP9
EN
GP8
EN
GP7
EN
GP6
EN
GP5
EN
GP4
EN
GP3
EN
GP2
EN
GP1
EN
GP0
EN
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-1
R/W-1
R/W-1
R/W-1
R/W-1
R/W-0
R/W-0
R/W-1
Legend: R/W = Readable/Writable; -n = value after reset, -x = undefined value after reset
Figure 6. GPIO Enable Register (GPEN) [Hex Address: 01B0 0000]
Figure 7 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
14
13
12
11
10
98
7
6
5
43
2
10
GP15
DIR
GP14
DIR
GP13
DIR
GP12
DIR
GP11
DIR
GP10
DIR
GP9
DIR
GP8
DIR
GP7
DIR
GP6
DIR
GP5
DIR
GP4
DIR
GP3
DIR
GP2
DIR
GP1
DIR
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/Writable; -n = value after reset, -x = undefined value after reset
Figure 7. 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).



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