Datasheet
MSP430F5438, MSP430F5437, MSP430F5436, MSP430F5435
MSP430F5419, MSP430F5418
www.ti.com
SLAS612D –AUGUST 2009–REVISED AUGUST 2013
Table 47. Port P5 (P5.0 and P5.1) Pin Functions
CONTROL BITS/SIGNALS
(1)
PIN NAME (P5.x) x FUNCTION
P5DIR.x P5SEL.x REFOUT
P5.0/A8/VREF+/VeREF+ 0 P5.0 (I/O)
(2)
I: 0; O: 1 0 X
VeREF+
(3)
X 1 0
VREF+
(4)
X 1 1
A8
(5)
X 1 0
P5.1/A9/VREF–/VeREF– 1 P5.1 (I/O)
(2)
I: 0; O: 1 0 X
VeREF–
(6)
X 1 0
VREF–
(7)
X 1 1
A9
(8)
X 1 0
(1) X = Don't care
(2) Default condition
(3) Setting the P5SEL.0 bit disables the output driver and the input Schmitt trigger to prevent parasitic cross currents when applying analog
signals. An external voltage can be applied to VeREF+ and used as the reference for the ADC12_A.
(4) Setting the P5SEL.0 bit disables the output driver and the input Schmitt trigger to prevent parasitic cross currents when applying analog
signals. The ADC12_A, VREF+ reference is available at the pin.
(5) When not using an external reference applied to VeREF+ or not outputting the internal reference to VREF+, A8 may be used as an
external ADC channel. Setting the P5SEL.0 bit disables the output driver and the input Schmitt trigger to prevent parasitic cross currents
when applying analog signals.
(6) Setting the P5SEL.1 bit disables the output driver and the input Schmitt trigger to prevent parasitic cross currents when applying analog
signals. An external voltage can be applied to VeREF- and used as the reference for the ADC12_A.
(7) Setting the P5SEL.1 bit disables the output driver and the input Schmitt trigger to prevent parasitic cross currents when applying analog
signals. The ADC12_A, VREF– reference is available at the pin.
(8) When not using an external reference applied to VeREF+ or not outputting the internal reference to VREF+, A8 may be used as an
external ADC channel. Setting the P5SEL.1 bit disables the output driver and the input Schmitt trigger to prevent parasitic cross currents
when applying analog signals.
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