LFXT1 off
P2SEL.6
Bus
Keeper
EN
Direction
0: Input
1: Output
P2SEL.7
1
0
P2DIR.7
P2IN.7
P2IRQ.7
D
EN
Module X IN
1
0
Module X OUT
P2OUT.7
Interrupt
Edge
Select
Q
EN
Set
P2SEL.7
P2IES.7
P2IFG.7
P2IE.7
P2.7/XOUT
1
0
DVSS
DVCC
P2REN.7
Pad Logic
LFXT1 Oscillator
BCSCTL3.LFXT1Sx = 11
0
1
1
LFXT1CLK
From P2.6/XIN
P2.6/XIN
MSP430F22x2
MSP430F22x4
SLAS504G – JULY 2006 – REVISED AUGUST 2012
www.ti.com
Port P2 Pin Schematic: P2.7, Input/Output With Schmitt Trigger and Crystal Oscillator Output
Table 30. Port P2 (P2.7) Pin Functions
CONTROL BITS/SIGNALS
(1)
PIN NAME (P2.x)
x
FUNCTION
P2DIR.x
P2SEL.x
P2.7 (I/O)
I: 0; O: 1
0
XOUT/P2.7
7
XOUT
(2) (3)
X
1
(1)
X = Don't care
(2)
Default after reset (PUC/POR)
(3)
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.
68
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