Datasheet

To Module
ADC10CLK
PxOUT.y
DV
SS
DV
CC
1
Bus
Keeper
EN
1
0
PxIN.y
EN
D
PxSEL.y
PxREN.y
1
0
PxIRQ.y
PxIE.y
EN
Set
Q
Interrupt
Edge
Select
PxSEL.y
PxIES.y
PxIFG.y
Direction
0: Input
1: Output
PxDIR.y
PxSEL.y
0
1
P1.3/ADC10CLK/A3/VREF-/VEREF-
INCHx = y
To ADC10
To ADC10 VREF-
1
0
VSS
SREF2
ADC10AE0.y
MSP430G2x31
MSP430G2x21
SLAS694J –FEBRUARY 2010–REVISED FEBRUARY 2013 www.ti.com
Port P1 Pin Schematic: P1.3, Input/Output With Schmitt Trigger – MSP430G2x31
Table 19. Port P1 (P1.3) Pin Functions – MSP430G2x31
CONTROL BITS / SIGNALS
(1)
PIN NAME (P1.x) x FUNCTION
ADC10AE.x
P1DIR.x P1SEL.x
(INCH.x = 1)
P1.3/ P1.x (I/O) I: 0; O: 1 0 0
ADC10CLK/ ADC10CLK 1 1 0
A3/ 3 A3 X X 1 (y = 3)
VREF-/ VREF- X X 1
VEREF- VEREF- X X 1
(1) X = don't care
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