Datasheet

MSP430x22x2, MSP430x22x4
MIXED SIGNAL MICROCONTROLLER
SLAS504B − JULY 2006 − REVISED JULY 2007
72
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
Port P4 pin schematic: P4.3 to P4.4, input/output with Schmitt trigger
OAPMx
OAADCx
To OA0/1 Feedback Network
1
OAADCx = 01 and OAPMx> 00
Bus
Keeper
EN
Direction
0: Input
1: Output
P4SEL.x
1
0
P4DIR.x
P4IN.x
D
EN
Module X IN
1
0
Module X OUT
P4OUT.x
P4.3/TB0/A12/OA0O
P4.4/TB1/A13/OA1O
1
0
DVSS
DVCC
P4REN.x
ADC10AE1.y
Pad Logic
INCHx = 8+y
To ADC10
1
OA0/1
+
−
1
P4DIR.6
P4SEL.6
ADC10AE1.7
P4.6/TBOUTH/A15/OA1I3
Timer_B Output Tristate Logic
†
†
If OAADCx = 11 and not OAFCx = 000 the ADC input A12 or A13 is internally connected to the OA0 or OA1 output respectively and the connections
from the ADC and the operational amplifiers to the pad are disabled.