Texas Instruments ADS131E08, User Manual, Page: 20 / 47

Temperature ( C) °
=
0.1447 0.145300
-
0.00049
+ 25 = 23.78 C °
USING THE SOFTWARE
www.ti.com
The number 0.1447 V (on the y-axis) can be calculated as a temperature using Equation 2 :
(2)
4.5.1 MV
DD
Input and the Scope Tab
The MV
DD
input option allows the measurement of the supply voltage V
S
= (AVDD + AVSS) / 2 for
channels 1, 2, 5, 6, 7, and 8; however, the supply voltage for channel 3 is DVDD / 2.
4.6 General-Purpose I/O Register (GPIO)
The GPIO registers control four general-purpose input and output (I/O) pins. Table 9 shows the respective
register to control these pins. Figure 19 illustrates the GPIO Control Register GUI panel.
Table 9. GPIO: General-Purpose I/O Register
Reset
Address Register Value Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
14h GPIO 0Fh GPIOD4 GPIOD3 GPIOD2 GPIOD1 GPIOC4 GPIOC3 GPIOC2 GPIOC1
Figure 19. GPIO Control Register GUI Panel
20 Performance Demonstration Kit for the ADS131E08 SBAU200 – June 2012
Submit Documentation Feedback
Copyright © 2012, Texas Instruments Incorporated