SBAU202 Datasheet, PDF (20/47 Pages) Texas Instruments – Performance Demonstration Kit for the ADS130E08

USING THE SOFTWARE
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Figure 18. Eight-Channel Read of Internal Temperature Data
The number 0.1447 V (on the y-axis) can be calculated as a temperature using Equation 2:
0.1447 - 0.145300
Temperature (°C) =
0.00049
+ 25 = 23.78°C
(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.
Address
14h
Register
GPIO
Reset
Value
0Fh
Table 9. GPIO: General-Purpose I/O Register
Bit 7
GPIOD4
Bit 6
GPIOD3
Bit 5
GPIOD2
Bit 4
GPIOD1
Bit 3
GPIOC4
Bit 2
GPIOC3
Bit 1
GPIOC2
Bit 0
GPIOC1
20 Performance Demonstration Kit for the ADS130E08
Copyright © 2012, Texas Instruments Incorporated
SBAU202 – June 2012
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