MSP430F412 datasheet(44/55 Pages) TI

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MSP430x41x

MIXED SIGNAL MICROCONTROLLER

SLAS340G − MAY 2001 − REVISED JUNE 2004

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

APPLICATION INFORMATION

input/output schematic (continued)

port P5, P5.2, P5.4, input/output with Schmitt-trigger

P5SEL.2

P5DIR.2

P5OUT.2

P5IN.2

COM1

P5DIR.2

DVSS

Unused

PnSEL.x

PnDIR.x

Direction

From Module

PnOUT.x

Module X

OUT

PnIN.x

COMx

Module X IN

Control

NOTE: 2

≤ x ≤ 4

DVSS

Unused

0: Port Active

1: COMx Function

P5OUT.x

Module X OUT

P5DIR.x

Direction Control

From Module

P5SEL.x

P5.x

Pad Logic

0: Input

1: Output

Bus

keeper

Module X IN

P5IN.x

COMx

Active

P5.2/COM1

P5.3/COM2

DVSS

Unused

P5SEL.3

P5DIR.3

P5OUT.3

P5IN.3

COM2

P5DIR.3

DVSS

Unused

P5SEL.4

P5DIR.4

P5OUT.4

P5IN.4

COM3

P5DIR.4

DVSS

Unused

P5.4/COM3

NOTE:

The direction control bits P5SEL.2, P5SEL.3, and P5SEL.4 are used to distinguish between port

and common functions. Note that a 4MUX LCD requires all common signals COM3 to COM0, a

3MUX LCD requires COM2 to COM0, 2MUX LCD requires COM1 to COM0, and a static LCD

requires only COM0.

MSP430F412 Datasheet(PDF) 44 Page - Texas Instruments

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