MSP430F1101A Datasheet, PDF (28/39 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430C11x1, MSP430F11x1A
MIXED SIGNAL MICROCONTROLLER
SLAS241H − SEPTEMBER 1999 − REVISED SEPTEMBER 2004
APPLICATION INFORMATION
Port P2, P2.3 to P2.4, input/output with Schmitt-trigger
P2SEL.3
P2DIR.3
Direction Control
From Module
P2OUT.3
Module X
OUT
0
0: Input
1
1: Output
0
Pad Logic
1
VCC
See Note 1
See Note 2
See Note 2
P2.3
P2IN.3
Module X IN
P2IRQ.3
See Note 1
Bus Keeper
GND
EN
D
P2IE.3
P2IFG.3
EN
Q
Set
Interrupt
Flag
Interrupt
Edge
Select
P2IES.3 P2SEL.3
CAPD.3
Comparator_A
CAREF P2CA CAEX
CAF
CCI1B
+
_
0V
P2IRQ.4
Module X IN
P2IN.4
Module X OUT
P2OUT.4
Direction Control
From Module
P2DIR.4
P2SEL.4
Interrupt
Flag
P2IFG.4
P2IE.4
Set
Q
EN
D
P2IES.4 P2SEL.4
Interrupt
Edge
Select
CAREF
EN
Bus Keeper
1
0
Pad Logic
1
1: Output
0: Input
0
Reference Block
CAPD.4
VCC
See Note 1
See Note 2
See Note 2
See Note 1
GND
P2.4
PnSel.x PnDIR.x
Direction
control from module
PnOUT.x Module X OUT PnIN.x Module X IN PnIE.x PnIFG.x
P2Sel.3 P2DIR.3
P2DIR.3
P2OUT.3 Out1 signal† P2IN.3
unused
P2IE.3 P2IFG.3
P2Sel.4 P2DIR.4
P2DIR.4
P2OUT.4 Out2 signal† P2IN.4
unused
P2IE.4 P2IFG.4
† _{Signal from Timer_A}
NOTES: 1. Optional selection of pullup or pulldown resistors with ROM (masked) versions
2. Fuses for optional pullup and pulldown resistors can only be programmed at the factory (ROM versions only).
PnIES.x
P1IES.3
P1IES.4
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