MSP430x11x

MIXED SIGNAL MICROCONTROLLERS

SLAS196D− DECEMBER 1998 − REVISED SEPTEMBER 2004

3

POST OFFICE BOX 655303

Terminal Functions

TERMINAL

TERMINAL

I/O

DESCRIPTION

NAME

NO.

I/O

DESCRIPTION

P1.0/TACLK

13

I/O

General-purpose digital I/O pin/Timer_A, clock signal TACLK input

P1.1/TA0

14

I/O

General-purpose digital I/O pin/Timer_A, Capture: CCI0A input, Compare: Out0 output

P1.2/TA1

15

I/O

General-purpose digital I/O pin/Timer_A, Capture: CCI1A input, Compare: Out1 output

P1.3/TA2

16

I/O

General-purpose digital I/O pin/Timer_A, Capture: CCI2A input, Compare: Out2 output

P1.4/SMCLK/TCK

17

I/O

General-purpose digital I/O pin/SMCLK signal output/Test clock, input terminal for device programming

and test

P1.5/TA0/TMS

18

I/O

General-purpose digital I/O pin/Timer_A, Compare: Out0 output/test mode select, input terminal for

device programming and test.

P1.6/TA1/TDI

19

I/O

General-purpose digital I/O pin/Timer_A, Compare: Out1 output/test data input terminal.

P1.7/TA2/TDO/TDI

20

I/O

General-purpose digital I/O pin/Timer_A, Compare: Out2 output/test data output terminal or data input

during programming.

P2.0/ACLK

8

I/O

General-purpose digital I/O pin/ACLK output

P2.1/INCLK

9

I/O

General-purpose digital I/O pin/Timer_A, clock signal at INCLK

P2.2/TA0

10

I/O

General-purpose digital I/O pin/Timer_A, Capture: CCI0B input, Compare: Out0 output

P2.3/TA1

11

I/O

General-purpose digital I/O pin/Timer_A, Capture: CCI1B input, Compare: Out1 output

P2.4/TA2

12

I/O

General-purpose digital I/O pin/Timer_A, Compare: Out2 output

P2.5/ROSC

3

I/O

General-purpose digital I/O pin/Input for external resistor that defines the DCO nominal frequency

RST/NMI

7

I

Reset or nonmaskable interrupt input

TEST/VPP

1

I

Selects test mode for JTAG pins on Port1/programming voltage input during EPROM programming

VCC

2

Supply voltage

VSS

4

Ground reference

XIN

6

I

Input terminal of crystal oscillator

XOUT/TCLK

5

I/O

Output terminal of crystal oscillator or test clock input