MSP430G2744 Datasheet, PDF (50/73 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430G2744
MSP430G2544
MSP430G2444
SLAS892A – MARCH 2013 – REVISED APRIL 2013
Port P2 Pin Schematic: P2.4, Input/Output With Schmitt Trigger
To /from ADC10
positive reference
Pad Logic
To ADC 10
INCHx = 4
ADC10AE0.4
P2REN.4
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P2DIR.4
0
1
P2OUT.4
0
Module X OUT
1
P2SEL.4
P2IN.4
EN
Module X IN
D
Direction
0: Input
1: Output
DVSS 0
DVCC 1
1
Bus
Keeper
EN
P2.4/TA2/
A4/VREF+/VeREF
P2IRQ.4
P2IE.4
P2IFG.4
EN
Q
Set
P2SEL.4
P2IES.4
Interrupt
Edge
Select
PIN NAME (P2.x)
P2.4/TA2/A4/
VREF+/VeREF+
Table 24. Port P2 (P2.4) Pin Functions
xy
P2.4⁽²⁾ (I/O)
FUNCTION
CONTROL BITS/SIGNALS⁽¹⁾
P2DIR.x
P2SEL.x
ADC10AE0.y
I: 0; O: 1
0
0
4 4 Timer_A3.TA2
A4/VREF+/VeREF+ ⁽³⁾
1
1
0
X
X
1
(1) X = Don't care
(2) Default after reset (PUC, POR)
(3) Setting the ADC10AE0.y bit disables the output driver as well as the input Schmitt trigger to prevent parasitic cross currents when
applying analog signals.
50
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