Texas Instruments TMS320DM644x - Manual (Page 11)

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2.4 Using a GPIO Signal as an Output
Peripheral Architecture
Table 1. GPIO Register Bits and Banks Associated With GPIO Pins (continued)
GPIO Signal Bank Number Register Pair Number Register Field Number Bit Number
GPIO38 2 register_name23 field_name38 Bit 6
GPIO39 2 register_name23 field_name39 Bit 7
GPIO40 2 register_name23 field_name40 Bit 8
GPIO41 2 register_name23 field_name41 Bit 9
GPIO42 2 register_name23 field_name42 Bit 10
GPIO43 2 register_name23 field_name43 Bit 11
GPIO44 2 register_name23 field_name44 Bit 12
GPIO45 2 register_name23 field_name45 Bit 13
GPIO46 2 register_name23 field_name46 Bit 14
GPIO47 2 register_name23 field_name47 Bit 15
GPIO48 3 register_name23 field_name48 Bit 16
GPIO49 3 register_name23 field_name49 Bit 17
GPIO50 3 register_name23 field_name50 Bit 18
GPIO51 3 register_name23 field_name51 Bit 19
GPIO52 3 register_name23 field_name52 Bit 20
GPIO53 3 register_name23 field_name53 Bit 21
GPIOV33_0 3 register_name23 field_name54 Bit 22
GPIOV33_1 3 register_name23 field_name55 Bit 23
GPIOV33_2 3 register_name23 field_name56 Bit 24
GPIOV33_3 3 register_name23 field_name57 Bit 25
GPIOV33_4 3 register_name23 field_name58 Bit 26
GPIOV33_5 3 register_name23 field_name59 Bit 27
GPIOV33_6 3 register_name23 field_name60 Bit 28
GPIOV33_7 3 register_name23 field_name61 Bit 29
GPIOV33_8 3 register_name23 field_name62 Bit 30
GPIOV33_9 3 register_name23 field_name63 Bit 31
GPIOV33_10 4 register_name4 field_name64 Bit 0
GPIOV33_11 4 register_name4 field_name65 Bit 1
GPIOV33_12 4 register_name4 field_name66 Bit 2
GPIOV33_13 4 register_name4 field_name67 Bit 3
GPIOV33_14 4 register_name4 field_name68 Bit 4
GPIOV33_15 4 register_name4 field_name69 Bit 5
GPIOV33_16 4 register_name4 field_name70 Bit 6
GPIO signals are configured to operate as inputs or outputs by writing the appropriate value to the GPIO
direction register (DIR). This section describes using the GPIO signal as an output signal.
2.4.1 Configuring a GPIO Output Signal
To configure a given GPIO signal as an output, clear the bit in DIR that is associated with the desired
GPIO signal. For detailed information on DIR, see
Section 3 .
SPRUE25 – December 2005 General-Purpose Input/Output (GPIO) 11