MSP430F5438A Datasheet, PDF (76/106 Pages) Texas Instruments – Mixed Signal Microcontroller

MSP430F5438A, MSP430F5437A, MSP430F5436A, MSP430F5435A
MSP430F5419A, MSP430F5418A
SLAS655D – JANUARY 2010 – REVISED AUGUST 2013
www.ti.com
PIN NAME (P5.x)
P5.0/A8/VREF+/VeREF+
P5.1/A9/VREF–/VeREF–
Table 48. Port P5 (P5.0 and P5.1) Pin Functions
x
0 P5.0 (I/O)⁽²⁾
A8/VeREF+ ⁽³⁾
A8/VREF+ ⁽⁴⁾
1 P5.1 (I/O)⁽²⁾
A9/VeREF– ⁽⁵⁾
A9/VREF– ⁽⁶⁾
FUNCTION
CONTROL BITS/SIGNALS⁽¹⁾
P5DIR.x
P5SEL.x
REFOUT
I: 0; O: 1
0
X
X
1
0
X
1
1
I: 0; O: 1
0
X
X
1
0
X
1
1
(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. 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 and 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 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. 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 and 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.
76
Submit Documentation Feedback
Copyright © 2010–2013, Texas Instruments Incorporated
Product Folder Links: MSP430F5438A MSP430F5437A MSP430F5436A MSP430F5435A MSP430F5419A
MSP430F5418A