MSP430F2274-EP_14 Datasheet, PDF (61/81 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F2274-EP
www.ti.com
SLAS614D – SEPTEMBER 2008 – REVISED MAY 2011
Port P3 Pin Schematic: P3.0, Input/Output With Schmitt Trigger
To ADC 10
INCHx = 5
ADC10AE0.5
Pad Logic
P3REN.0
P3DIR.0
USCI Direction
Control
P3OUT.0
Module X OUT
P3SEL.0
P3IN.0
Module X IN
0
1
0
1
EN
D
Direction
0: Input
1: Output
DVSS 0
DVCC 1
1
Bus
Keeper
EN
P3.0/UC1STE/UC0CLK/A5
Port P3 (P3.0) Pin Functions
PIN NAME (P1.X)
X
P3.0/UC1STE/UC0CLK/A5 0
Y
FUNCTION ⁽¹⁾
P3.0⁽³⁾ (I/O)
5 UC1STE/UC0CLK^{(4) (5)}
A5 ⁽⁶⁾
CONTROL BITS/SIGNALS⁽²⁾
P3DIR.x
P3SEL.x
ADC10AE0.y
I: 0; O: 1
0
0
X
1
0
X
X
1
(1) N/A: Not available or not applicable
(2) X: Don't care
(3) Default after reset (PUC/POR)
(4) The pin direction is controlled by the USCI module.
(5) UC0CLK function takes precedence over UC1STE function. If the pin is required as UC0CLK input or output USCI1 is forced to 3-wire
SPI mode if 4-wire SPI mode is selected.
(6) 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.
Copyright © 2008–2011, Texas Instruments Incorporated
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