MSP430F2101 Datasheet, PDF (33/53 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430x21x1
MIXED SIGNAL MICROCONTROLLER
SLAS439C − SEPTEMBER 2004 − REVISED JULY 2006
APPLICATION INFORMATION
Port P1 pin schematic: P1.0 to P1.3, input/output with Schmitt-trigger
P1REN.x
Pad Logic
P1DIR.x
0
1
P1OUT.x
Module X OUT
P1SEL.x
P1IN.x
Module X IN
0
1
EN
D
Direction
0: Input
1: Output
DVSS 0
DVCC 1
1
P1.0/TACLK
P1.1/TA 0
P1.2/TA 1
P1.3/TA 2
P1IRQ.x
P1IE.x
P1IFG.x
EN
Q
Set
P1SEL.x
P1IES.x
Interrupt
Edge
Select
Port P1 (P1.0 to P1.3) pin functions
PIN NAME (P1.X) X
P1.0/TACLK
0 P1.0† (I/O)
TACLK
P1.1/TA0
DVSS
1 P1.1† (I/O)
Timer_A3.CCI0A
Timer_A3.TA0
P1.2/TA1
2 P1.2† (I/O)
Timer_A3.CCI0A
Timer_A3.TA0
P1.3/TA2
3 P1.3† (I/O)
Timer_A3.CCI0A
Timer_A3.TA0
† _{Default after reset (PUC/POR)}
NOTES: 1. N/A: Not available or not applicable.
2. X: Don’t care.
FUNCTION
CONTROL BITS / SIGNALS
P1DIR.x
P1SEL.x
I: 0; O: 1
0
0
1
1
1
I: 0; O: 1
0
0
1
1
1
I: 0; O: 1
0
0
1
1
1
I: 0; O: 1
0
0
1
1
1
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
33