Datasheet

Bus
Keeper
EN
Direction
0: Input
1: Output
P3SEL.x
1
0
P3DIR.x
P3IN.x
D
EN
Module X IN
1
0
Module X OUT
P3OUT.x
P3.6/A6/OA0I2
P3.7/A7/OA1I2
1
0
DVSS
DVCC
P3REN.x
ADC10AE0.y
Pad Logic
INCHx = y
To ADC 10
1
OA0/1
+
−
DVSS
MSP430F22x2
MSP430F22x4
www.ti.com SLAS504G –JULY 2006–REVISED AUGUST 2012
Port P3 Pin Schematic: P3.6 to P3.7, Input/Output With Schmitt Trigger
Table 33. Port P3 (P3.6, P3.7) Pin Functions
CONTROL BITS/SIGNALS
(1)
PIN NAME (P3.x) x y FUNCTION
P3DIR.x P3SEL.x ADC10AE0.y
P3.6
(2)
(I/O) I: 0; O: 1 0 0
P3.6/A6/OA0I2 6 6
A6/OA0I2
(3)
X X 1
P3.7
(2)
(I/O) I: 0; O: 1 0 0
P3.7/A7/OA1I2 7 7
A7/OA1I2
(3)
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.
Copyright © 2006–2012, Texas Instruments Incorporated 71