MSP430F2002IPW datasheet(66/80 Pages) TI

66 / 80 page

MSP430x20x1, MSP430x20x2, MSP430x20x3

MIXED SIGNAL MICROCONTROLLER

SLAS491A − AUGUST 2005 − REVISED OCTOBER 2005

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

APPLICATION INFORMATION, MSP430x20x3

Port P1 (P1.0 to P1.3) pin functions, MSP430x20x3

PIN NAME (P1.X)

FUNCTION

CONTROL BITS / SIGNALS

PIN NAME (P1.X)

FUNCTION

P1DIR.x

P1SEL.x

SD16AE.x

INCHx

P1.0/TACLK/ACLK/A0+

P1.0† Input/Output

0/1

N/A

P1.0/TACLK/ACLK/A0+

Timer_A2.TACLK/INCLK

N/A

ACLK

N/A

A0+ (see Note 3)

P1.1/TA0/A0−/A4+

P1.1† Input/Output

0/1

N/A

P1.1/TA0/A0−/A4+

Timer_A2.CCI0A

N/A

Timer_A2.TA0

N/A

A0− (see Notes 3, 4)

A4+ (see Note 3)

P1.2/TA1/A1+/A4−

P1.2† Input/Output

0/1

N/A

P1.2/TA1/A1+/A4−

Timer_A2.CCI1A

N/A

Timer_A2.TA1

N/A

A1+ (see Note 3)

A4− (see Notes 3, 4)

P1.3/VREF/A1−

P1.3† Input/Output

0/1

N/A

P1.3/VREF/A1−

VREF

N/A

A1− (see Notes 3, 4)

† Default after reset (PUC/POR)

NOTES:

1. N/A: Not available or not applicable.

2. X: Don’t care.

3. Setting the SD16AE.x bit disables the output driver as well as the input schmitt trigger to prevent parasitic cross currents when

applying analog signals.

4. With SD16AE.x = 0 the negative inputs are connected to VSS if the corresponding input is selected.

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