Datasheet

MSP430x22x2, MSP430x22x4
MIXED SIGNAL MICROCONTROLLER
SLAS504B − JULY 2006 − REVISED JULY 2007
65
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
Port P2 pin schematic: P2.5, input/output with Schmitt trigger and external R
OSC
for DCO
Bus
Keeper
EN
Direction
0: Input
1: Output
P1SEL.x
1
0
P1DIR.x
P1IN.x
P1IRQ.x
D
EN
Module X IN
1
0
Module X OUT
P1OUT.x
Interrupt
Edge
Select
Q
EN
Set
P1SEL.x
P1IES.x
P1IFG.x
P1IE.x
P2.5/ROSC
1
0
DVSS
DVCC
P1REN.x
DCOR
Pad Logic
To DCO
1
Port P2 (P2.5) pin functions
PIN NAME (P2 X)
X
FUNCTION
CONTROL BITS / SIGNALS
PIN NAME (P2.X)
X FUNCTION
P2DIR.x P2SEL.x DCOR
P2.5/R
OSC
5 P2.5† (I/O) I: 0; O: 1 0 0
OSC
N/A 0 1 0
DV
SS
1 1 0
R
OSC
X X 1
†
Default after reset (PUC/POR)
NOTES: 1. N/A: Not available or not applicable
2. X: Don’t care
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.