MSP430FE42x2

MIXED SIGNAL MICROCONTROLLER

SLAS616 − JULY 2008

39

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

APPLICATION INFORMATION

Port P2, unbonded GPIOs P2.6 and P2.7

EN

D

0

1

0

1

Interrupt

Edge

Select

EN

Set

Q

P2IE.x

P2IFG.x

P2IRQ.x

Interrupt

Flag

P2IES.x

P2SEL.x

Module X IN

P2IN.x

P2OUT.x

Module X OUT

Direction Control

From Module

P2DIR.x

P2SEL.x

Bus Keeper

0

1

0: Input

1: Output

Node Is Reset With PUC

PUC

NOTE: x = Bit/identifier, 6 to 7 for port P2 without external pins

P2Sel.x

P2DIR.x

DIRECTION

CONTROL

FROM MODULE

P2OUT.x

MODULE X OUT

P2IN.x

MODULE X IN

P2IE.x

P2IFG.x

P2IES.x

P2Sel.6

P2DIR.6

P2DIR.6

P2OUT.6

DVSS

P2IN.6

unused

P2IE.6

P2IFG.6

P2IES.6

P2Sel.7

P2DIR.7

P2DIR.7

P2OUT.7

DVSS

P2IN.7

unused

P2IE.7

P2IFG.7

P2IES.7

NOTE: Unbonded GPIOs 6 and 7 of port P2 can be used as interrupt flags. Only software can affect the interrupt flags. They work as software

interrupts.