Datasheet

MSP430x22x2, MSP430x22x4
MIXED SIGNAL MICROCONTROLLER
SLAS504B − JULY 2006 − REVISED JULY 2007
71
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
Port P4 pin schematic: P4.0 to P4.2, input/output with Schmitt trigger
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
P4.0/TB0
P4.1/TB1
P4.2/TB2
1
0
DVSS
DVCC
P4REN.x
Pad Logic
1
P4DIR.6
P4SEL.6
ADC10AE1.7
P4.6/TBOUTH/A15/OA1I3
Timer_B Output Tristate Logic
Port P4 (P4.0 to P4.2) pin functions
PIN NAME (P4 X)
X
FUNCTION
CONTROL BITS / SIGNALS
PIN NAME (P4.X)
X FUNCTION
P4DIR.x P4SEL.x
P4.0/TB0 0 P4.0† (I/O) I: 0; O: 1 0
Timer_B3.CCI0A 0 1
Timer_B3.TB0 1 1
P4.1/TB1 1 P4.1† (I/O) I: 0; O: 1 0
Timer_B3.CCI1A 0 1
Timer_B3.TB1 1 1
P4.2/TB2 2 P4.2† (I/O) I: 0; O: 1 0
Timer_B3.CCI2A 0 1
Timer_B3.TB2 1 1
†
Default after reset (PUC/POR)
NOTES: 1. N/A: Not available or not applicable
2. X: Don’t care