Texas Instruments MSP430x11x1 - Manual (Page 39)

MSP430x11x1
MIXED SIGNAL MICROCONTROLLER
SLAS241C – SEPTEMBER 1999 – REVISED JUNE 2000
39
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
APPLICATION INFORMATION
Port P2, P2.0 to P2.2, input/output with Schmitt-trigger
EN
D
See Note 27
See Note 28
See Note 28
See Note 27
GND
VCC
P2.0 – P2.2
0
1
0
1
Interrupt
Edge
Select
EN
Set
Q
P2IE.x
P2IFG.x
P2IRQ.x
Interrupt
Flag
P2IES.x
P2SEL.x
Module X IN
P2IN.x
P2OUT.x
Module X OUT
Direction Control
From Module
P2DIR.x
P2SEL.x
Pad Logic
NOTE: x = Bit Identifier, 0 to 2 for port P2
0: Input
1: Output
Bus Keeper
CAPD.X
PnSel.x PnDIR.x
Direction
control from
module
PnOUT.x Module X OUT PnIN.x Module X IN PnIE.x PnIFG.x PnIES.x
P2Sel.0 P2DIR.0 P2DIR.0 P2OUT.0 ACLK P2IN.0 unused P2IE.0 P2IFG.0 P1IES.0
P2Sel.1 P2DIR.1 P2DIR.1 P2OUT.1 VSS P2IN.1 INCLK† P2IE.1 P2IFG.1 P1IES.1
P2Sel.2 P2DIR.2 P2DIR.2 P2OUT.2 CAOUT P2IN.2 CCI0B† P2IE.2 P2IFG.2 P1IES.2
† Signal from or to Timer_A
NOTES: 27. Optional selection of pullup or pulldown resistors with ROM (masked) versions.
28. Fuses for optional pullup and pulldown resistors can only be programmed at the factory (ROM versions only).