MSP430F2274-EP_14 Datasheet, PDF (60/81 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F2274-EP
SLAS614D – SEPTEMBER 2008 – REVISED MAY 2011
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Port P2 Pin Schematic: P2.7, Input/Output With Schmitt Trigger and Crystal Oscillator Output
BCSCTL3.LFXT1Sx = 11
LFXT1 Oscillator
LFXT1 off
0
LFXT1CLK
1
P2SEL.6
P2REN.7
From P2.6/XIN
Pad Logic
P2.6/XIN
P2DIR.7
0
1
P2OUT.7
Module X OUT
P2SEL.7
P2IN.7
Module X IN
0
1
EN
D
Direction
0: Input
1: Output
DVSS 0
DVCC 1
1
Bus
Keeper
EN
P2.7/XOUT
P2IRQ.7
P2IE.7
P2IFG.7
EN
Q
Set
P2SEL.7
P2IES.7
Interrupt
Edge
Select
Port P2 (P2.7) Pin Functions
PIN NAME (P2.X)
XOUT/P2.7
X
FUNCTION ⁽¹⁾
P2.7 (I/O)
6
XOUT ^{(3) (4)}
CONTROL BITS/SIGNALS⁽²⁾
P2DIR.x
P2SEL.x
I: 0; O: 1
0
X
1
(1) N/A: Not available or not applicable
(2) X: Don't care
(3) Default after reset (PUC/POR)
(4) If the pin XOUT/P2.7 is used as an input a current can flow until P2SEL.7 is cleared due to the oscillator output driver connection to this
pin after reset.
60
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