MSP430x22x2, MSP430x22x4
MIXED SIGNAL MICROCONTROLLER
SLAS504B − JULY 2006 − REVISED JULY 2007
63
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
Port P2 (P2.1) pin functions
CONTROL BITS / SIGNALS
PIN NAME (P2.X)
X Y FUNCTION
P2DIR.x P2SEL.x ADC10AE0.y
P2.1/TAINCLK/SMCLK 1 1 P2.1† (I/O) I: 0; O: 1 0 0
/A1/OA0O
Timer_A3.INCLK 0 1 0
SMCLK 1 1 0
A1/OA0O (see Note 3) X X 1
†
Default after reset (PUC/POR)
NOTES: 1. N/A: Not available or not applicable
2. X: Don’t care
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.
Port P2 (P2.3) pin functions
CONTROL BITS / SIGNALS
PIN NAME (P2.X)
X Y FUNCTION
P2DIR.x P2SEL.x ADC10AE0.y
P2.3/TA1/ 3 3 P2.3† (I/O) I: 0; O: 1 0 0
A3/V
REF−
/V
eREF−
/
Timer_A3.CCI1B 0 1 0
OA1I1/OA1O
Timer_A3.TA1 1 1 0
A3/V
REF−
/V
eREF−
/OA1I1/OA1O (see Note 3) X X 1
†
Default after reset (PUC/POR)
NOTES: 1. N/A: Not available or not applicable
2. X: Don’t care
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.
