Datasheet

MSP430BT5190

SLAS703A –APRIL 2010–REVISED AUGUST 2013

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Table 48. 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

A8/VeREF+

(3)

X 1 0

A8/VREF+

(4)

X 1 1

P5.1/A9/VREF–/VeREF– 1 P5.1 (I/O)

(2)

I: 0; O: 1 0 X

A9/VeREF–

(5)

X 1 0

A9/VREF–

(6)

X 1 1

(1) X = Don't care

(2) Default condition

(3) Setting the P5SEL.0 bit disables the output driver as well as 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. Channel A8, when selected

with the INCHx bits, is connected to the VREF+/VeREF+ pin.

(4) Setting the P5SEL.0 bit disables the output driver as well as the input Schmitt trigger to prevent parasitic cross currents when applying

analog signals. The ADC12_A, VREF+ reference is available at the pin. Channel A8, when selected with the INCHx bits, is connected to

the VREF+/VeREF+ pin.

(5) Setting the P5SEL.1 bit disables the output driver as well as 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. Channel A9, when selected

with the INCHx bits, is connected to the VREF-/VeREF- pin.

(6) Setting the P5SEL.1 bit disables the output driver as well as the input Schmitt trigger to prevent parasitic cross currents when applying

analog signals. The ADC12_A, VREF– reference is available at the pin. Channel A9, when selected with the INCHx bits, is connected to

the VREF-/VeREF- pin.

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