Datasheet

MSP430x22x2, MSP430x22x4
MIXED SIGNAL MICROCONTROLLER
SLAS504B − JULY 2006 − REVISED JULY 2007
76
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
Port P4 pin schematic: P4.6, input/output with Schmitt trigger
Bus
Keeper
EN
Direction
0: Input
1: Output
P4SEL.6
1
0
P4DIR.6
P4IN.6
D
EN
Module X IN
1
0
Module X OUT
P4OUT.6
1
0
DVSS
DVCC
P4REN.6
ADC10AE1.7
Pad Logic
INCHx = 15
To ADC10
1
OA1
+
−
P4.6/TBOUTH/
A15/OA1I3
Port P4 (P4.6) pin functions
PIN NAME (P4 X)
X
Y
FUNCTION
CONTROL BITS / SIGNALS
PIN NAME (P4.X)
X Y FUNCTION
P4DIR.x P4SEL.x ADC10AE1.y
P4.6/TBOUTH/ 6 7 P4.6† (I/O) I: 0; O: 1 0 0
A15/OA1I3
TBOUTH 0 1 0
DV
SS
1 1 0
A15/OA1I3 (see Note 3) 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 ADC10AE1.y bit disables the output driver as well as the input schmitt trigger to prevent parasitic cross currents when
applying analog signals.