MSP430F149 datasheet(48/59 Pages) TI

48 / 59 page

MSP430x13x, MSP430x14x, MSP430x14x1

MIXED SIGNAL MICROCONTROLLER

SLAS272F − JULY 2000 − REVISED JUNE 2004

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

APPLICATION INFORMATION

input/output schematic (continued)

port P4, P4.7, input/output with Schmitt-trigger

P4.7/TBCLK

P4IN.7

Timer_B,

Pad Logic

P4OUT.7

P4DIR.7

P4SEL.7

TBCLK

0: Input

1: Output

DVSS

port P5, P5.0 and P5.4 to P5.7, input/output with Schmitt-trigger

P5.0/STE1

P5IN.x

Module X IN

Pad Logic

P5OUT.x

P5DIR.x

P5SEL.x

Module X OUT

Direction Control

From Module

P5.4/MCLK

P5.5/SMCLK

P5.6/ACLK

P5.7/TBOUTH

x: Bit Identifier, 0 and 4 to 7 for Port P5

0: Input

1: Output

PnSel.x

PnDIR.x

Dir. CONTROL FROM MODULE

PnOUT.x

MODULE X OUT

PnIN.x

MODULE X IN

P5Sel.0

P5DIR.0

DVSS

P5OUT.0

DVSS

P5IN.0

STE.1

P5Sel.4

P5DIR.4

DVCC

P5OUT.4

MCLK

P5IN.4

unused

P5Sel.5

P5DIR.5

DVCC

P5OUT.5

SMCLK

P5IN.5

unused

P5Sel.6

P5DIR.6

DVCC

P5OUT.6

ACLK

P5IN.6

unused

P5Sel.7

P5DIR.7

DVSS

P5OUT.7

DVSS

P5IN.7

TBOUTHiZ

NOTE: TBOUTHiZ signal is used by port module P4, pins P4.0 to P4.6. The function of TBOUTHiZ is mainly useful when used with Timer_B7.

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