Datasheet

Direction
0: Input
1: Output
P2SEL.x
P2DIR.x
P2IN.x
P2IRQ.x
D
EN
Module X IN
Module X OUT
P2OUT .x
Interrupt
Edge Select
Q
EN
Set
P2SEL.x
P2IES.x
P2IFG.x
P2IE.x
DVSS
DVCC
P2REN.x
Pad Logic
1
1
0
1
0
1
0
Bus
Keeper
EN
CAPD.x
From
Comparator_A
To
Comparator_A
INCHx = y
To ADC10
ADC10AE0.y
To/from ADC10
Reference
P2.3/TA0.1/A3/
V /Ve /CA0
REF− REF−
P2.4/TA0.2/A4/
V /Ve /CA1
REF+ REF+
MSP430F21x2
www.ti.com SLAS578J –NOVEMBER 2007– REVISED JANUARY 2012
Port P2 Pin Schematic: P2.3 and P2.4, Input/Output With Schmitt Trigger
Table 24. Port P2 (P2.3 and P2.4) Pin Functions
CONTROL BITS / SIGNALS
(1)
PIN NAME (P2.x) x FUNCTION
P2SEL.x
ADC10AE0.y CAPD.x P2DIR.x
P2SEL2.x = 0
P2.3 (I/O) 0 0 I: 0; O: 1 0
Timer0_A3.TA1 0 0 1 1
P2.3/TA0.1/A3/
3
V
REF-
/Ve
REF-
/CA0
A3/V
REF-
/Ve
REF-
1 0 X X
CA0 0 1 X X
(1) X = Don't care
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