MSP430F22X2_17 Datasheet, PDF (65/94 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430F22x2
MSP430F22x4
www.ti.com
SLAS504G – JULY 2006 – REVISED AUGUST 2012
Port P2 Pin Schematic: P2.4, Input/Output With Schmitt Trigger
To /from ADC10
positive reference
Pad Logic
To ADC 10
INCHx = 4
ADC10AE0.4
P2REN.4
P2DIR.4
0
1
P2OUT.4
0
Module X OUT
1
P2SEL.4
P2IN.4
EN
Module X IN
D
Direction
0: Input
1: Output
DVSS 0
DVCC 1
1
Bus
Keeper
EN
P2.4/TA2/
A4/VREF+/VeREF+/
OA1I0
P2IRQ.4
P2IE.4
P2IFG.4
EN
Q
Set
P2SEL.4
P2IES.4
Interrupt
Edge
Select
+
OA1
−
Table 27. Port P2 (P2.4) Pin Functions
PIN NAME (P2.x)
P2.4/TA2/A4/V_REF+/
V_eREF+/ OA1I0
xy
FUNCTION
P2.4⁽²⁾ (I/O)
4 4 Timer_A3.TA2
A4/V_REF+/V_eREF+/OA1I0 ⁽³⁾
CONTROL BITS/SIGNALS⁽¹⁾
P2DIR.x
P2SEL.x
ADC10AE0.y
I: 0; O: 1
0
0
1
1
0
X
X
1
(1) X = Don't care
(2) Default after reset (PUC/POR)
(3) 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 © 2006–2012, Texas Instruments Incorporated
65