- TMS320C645x General-Purpose Input/Output SPRU724 User's Guide

Registers
21General-Purpose Input/Output (GPIO)SPRU724
5.6 Input Data Register (IN_DATA)
The GPIO input data register (IN_DATA) reflects the state of the GPIO pins.
The IN_DATA register is shown in Figure 8 and described in Table 8. When
read, IN_DATA returns the state of the GPIO pins regardless of the state of the
corresponding bits in the DIR and OUT_DATA registers.
Figure 8. Input Data Register (IN_DATA)
31 16
Reserved
R-0
15 14 13 12 11 10 9 8
IN15 IN14 IN13 IN12 IN11 IN10 IN9 IN8
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
76543210
IN7 IN6 IN5 IN4 IN3 IN2 IN1 IN0
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
Legend: R = Read only; R/W = Read/Write; -n = value after reset
Table 8. Input Data Register (IN_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 INn Returns the status of the corresponding GPn pin.