MSP430X41X_11 Datasheet, PDF (44/64 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430x41x
MIXED SIGNAL MICROCONTROLLER
SLAS340J − MAY 2001 − REVISED DECEMBER 2008
APPLICATION INFORMATION
port P5, P5.2 to P5.4, input/output with Schmitt trigger
COMx
0: Port Active
1: COMx Function
Active
Pad Logic
P5SEL.x
P5DIR.x
Direction Control
From Module
P5OUT.x
Module X OUT
P5IN.x
Module X IN
0
1
0
1
EN
D
0: Input
1: Output
Bus
keeper
P5.x
P5.2/COM1
P5.3/COM2
P5.4/COM3
NOTE: 2 ≤ x ≤ 4
PnSEL.x
PnDIR.x
Direction
Control PnOUT.x
From Module
P5SEL.2 P5DIR.2
P5DIR.2
P5OUT.2
Module X
OUT
DVSS
P5SEL.3 P5DIR.3
P5DIR.3
P5OUT.3
DVSS
P5SEL.4 P5DIR.4
P5DIR.4
P5OUT.4
DVSS
PnIN.x Module X IN COMx
P5IN.2
P5IN.3
P5IN.4
Unused
Unused
Unused
COM1
COM2
COM3
NOTE:
The direction control bits P5SEL.2, P5SEL.3, and P5SEL.4 are used to distinguish between port
and common functions. Note that a 4MUX LCD requires all common signals COM3 to COM0, a
3MUX LCD requires COM2 to COM0, 2MUX LCD requires COM1 to COM0, and a static LCD
requires only COM0.
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