MSP430F20X3_14 Datasheet, PDF (50/94 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F20x3
MSP430F20x2
MSP430F20x1
SLAS491I – AUGUST 2005 – REVISED DECEMBER 2012
www.ti.com
PIN NAME (P1.x)
P1.0/TACLK/ACLK/CA0
P1.1/TA0/CA1
P1.2/TA1/CA2
P1.3/CAOUT/CA3
Table 17. Port P1 (P1.0 to P1.3) Pin Functions, MSP430F20x1
x
FUNCTION
P1.0⁽²⁾ input/output
CONTROL BITS / SIGNALS⁽¹⁾
P1DIR.x
P1SEL.x
CAPD.x
0/1
0
0
Timer_A2.TACLK/INCLK
0
ACLK
CA0 ⁽³⁾
P1.1⁽²⁾ input/output
0
1
0
1
1
0
X
X
1
0/1
0
0
Timer_A2.CCI0A
1
Timer_A2.TA0
CA1 ⁽³⁾
P1.2⁽²⁾ input/output
0
1
0
1
1
0
X
X
1
0/1
0
0
Timer_A2.CCI1A
2
Timer_A2.TA1
CA2 ⁽³⁾
P1.3⁽²⁾ input/output
0
1
0
1
1
0
X
X
1
0/1
0
0
N/A
3
CAOUT
CA3 ⁽³⁾
0
1
0
1
1
0
X
X
1
(1) X = Don't care
(2) Default after reset (PUC/POR)
(3) Setting the CAPD.x bit disables the output driver and the input Schmitt trigger to prevent parasitic cross currents when applying analog
signals. Selecting the CAx input pin to the comparator multiplexer with the P2CAx bits automatically disables the input buffer for that pin,
regardless of the state of the associated CAPD.x bit.
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