MSP43020X3 Datasheet, PDF (50/92 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F20x3
MSP430F20x2
MSP430F20x1
SLAS491H – AUGUST 2005 – REVISED AUGUST 2011
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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 as well as 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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