MSP430G2955
MSP430G2855
MSP430G2755
www.ti.com
SLAS800 –MARCH 2013
Table 22. Port P3 (P3.0 to P3.7) Pin Functions
CONTROL BITS / SIGNALS(1)
PIN NAME (P3.x)
x
FUNCTION
ADC10AE.y
INCH.y=1
P3DIR.x
P3SEL.x
P3SEL2.x
P3.0/
P3.x (I/O)
UCB0STE
UCA0CLK
A5
I: 0; O: 1
0
1
1
X
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
X
0
0
1
1
X
0
0
0
0
X
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
X
1
0
0
0
X
1
0
0
UCB0STE/
UCA0CLK/
A5/
from USCI
0
from USCI
0
X
1 (y = 5)
0
Pin Osc
P3.1/
Capacitive sensing
P3.x (I/O)
X
I: 0; O: 1
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
0
UCB0SIMO/
UCB0SDA/
Pin Osc
P3.2/
UCB0SIMO
from USCI
1
2
3
4
5
UCB0SDA
from USCI
Capacitive sensing
P3.x (I/O)
X
I: 0; O: 1
UCB0SOMI/
UCB0SCL/
Pin Osc
P3.3/
UCB0SOMI
from USCI
UCB0SCL
from USCI
Capacitive sensing
P3.x (I/O)
X
I: 0; O: 1
UCB0CLK/
UCA0STE/
Pin Osc
P3.4/
UCB0CLK
from USCI
UCA0STE
from USCI
Capacitive sensing
P3.x (I/O)
X
I: 0; O: 1
UCA0TXD/
UCA0SIMO/
Pin Osc
P3.5/
UCA0TXD
from USCI
UCA0SIMO
from USCI
Capacitive sensing
P3.x (I/O)
X
I: 0; O: 1
UCA0RXD/
UCA0TXD/
Pin Osc
P3.6/
UCA0RXD
from USCI
UCA0TXD
from USCI
Capacitive sensing
P3.x (I/O)
X
I: 0; O: 1
TA1.1/
Timer1_A3.CCI1A
Timer1_A3.TA1
A6
0
0
6
7
1
0
A6/
X
1 (y = 6)
0
Pin Osc
P3.7/
Capacitive sensing
P3.x (I/O)
X
I: 0; O: 1
0
TA1.2/
Timer1_A3.CCI2A
Timer1_A3.TA2
A7
0
1
0
0
A7/
X
X
1 (y = 7)
0
Pin Osc
Capacitive sensing
(1) X = don't care
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