MSP430G2744 Datasheet, PDF (54/73 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430G2744
MSP430G2544
MSP430G2444
SLAS892A – MARCH 2013 – REVISED APRIL 2013
Port P3 Pin Schematic: P3.0, Input/Output With Schmitt Trigger
To ADC 10
INCHx = 5
ADC10AE0.5
Pad Logic
P3REN.0
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P3DIR.0
0
USCI Direction
1
Control
P3OUT.0
0
Module X OUT 1
P3SEL.0
P3IN.0
EN
Module X IN
D
Direction
0: Input
1: Output
DVSS 0
DVCC 1
1
Bus
Keeper
EN
P3.0/UCB0STE/UCA0CLK/A5
PIN NAME (P1.x)
P3.0/UCB0STE/
UCA0CLK/A5
Table 28. Port P3 (P3.0) Pin Functions
xy
FUNCTION
P3.0⁽²⁾ (I/O)
0 5 UCB0STE/UCA0CLK^{(3) (4)}
A5 ⁽⁵⁾
CONTROL BITS/SIGNALS⁽¹⁾
P3DIR.x
P3SEL.x
ADC10AE0.y
I: 0; O: 1
0
0
X
1
0
X
X
1
(1) X = Don't care
(2) Default after reset (PUC, POR)
(3) The pin direction is controlled by the USCI module.
(4) UCA0CLK function takes precedence over UCB0STE function. If the pin is required as UCA0CLK input or output, USCI_B0 is forced to
3-wire SPI mode if 4-wire SPI mode is selected.
(5) Setting the ADC10AE0.y bit disables the output driver as well as the input Schmitt trigger to prevent parasitic cross currents when
applying analog signals.
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