MSP430X47X3_07 Datasheet, PDF (60/76 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430x47x3, MSP430x47x4
MIXED SIGNAL MICROCONTROLLER
SLAS545A − MAY 2007 − REVISED DECEMBER 2007
port P4, P4.0 to P4.1, input/output with Schmitt-trigger
P4REN.x
DVSS
Pad Logic
P4DIR.x
USCI Direction
Control
P4OUT.x
Module X OUT
P4SEL.x
P4IN.x
Module X IN
0
1
0
1
EN
D
Direction
0: Input
1: Output
DVSS 0
DVCC 1
1
Bus
Keeper
EN
P4.0/UCA1TXD/UCA1SIMO
P4.1/UCA1RXD/UCA1SOMI
Port P4 (P4.0 to P4.1) pin functions
PIN NAME (P4.X)
X
FUNCTION
P4.0/
0 P4.0 (I/O)
UCA1TXD/UCA1SIMO
UCA1TXD/UCA1SIMO (see Notes 1, 2)
P4.1/
1 P4.1 (I/O)
UCA1RXD/UCA1SOMI
UCA1RXD/UCA1SOMI (see Notes 1, 2)
NOTES: 1. X: Don’t care.
2. The pin direction is controlled by the USCI module.
CONTROL BITS / SIGNALS
P4DIR.x
P4SEL.x
I: 0; O: 1
0
X
1
I: 0; O: 1
0
X
1
60
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