MSP430X43X1_08 Datasheet, PDF (58/73 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430x43x1, MSP430x43x, MSP430x44x
MIXED SIGNAL MICROCONTROLLER
SLAS344F − JANUARY 2002 − REVISED MAY 2007
APPLICATION INFORMATION
input/output schematic (continued)
port P3, P3.0 to P3.3, input/output with Schmitt-trigger
LCDM.5
LCDM.6
LCDM.7
Segment xx
MSP430x43x(1)IPN (80-Pin) Only
0: Port active
1: Segment xx function active
x43xIPZ and x44xIPZ have no segment
function on Port P3: Both lines are low.
Pad Logic
P3SEL.x
P3DIR.x
Direction Control
From Module
P3OUT.x
Module X OUT
P3IN.x
Module X IN
Note: 0 ≤ x ≤ 3
0
0: Input
1: Output
1
0
1
Bus
Keeper
EN
D
PnSel.x
P3Sel.0
P3Sel.1
Direction
PnDIR.x Control
PnOUT.x
From Module
P3DIR.0
DV_SS
P3OUT.0
P3DIR.1 DCM_SIMO0 P3OUT.1
Module X
OUT
DV_SS
SIMO0(out)
PnIN.x
P3IN.0
P3IN.1
Module X IN
STE0(in)
SIMO0(in)
P3Sel.2 P3DIR.2 DCM_SOMI0 P3OUT.2 SOMIO(out) P3IN.2 SOMI0(in)
P3Sel.3 P3DIR.3 DCM_UCLK0 P3OUT.3 UCLK0(out) P3IN.3 UCLK0(in)
P3.0/STEO/S31^†
P3.1/SIMO0/S30^†
P3.2/SOMI0/S29^†
P3.3/UCLK0/S28^†
† _{S24 to S31 shared with port function only at MSP430x43x(1)IPN (80-pin QFP)}
SYNC
MM
STC
STE
Direction Control for SIMO0 and UCLK0
DCM_SIMO0
DCM_UCLK0
SYNC
MM
STC
STE
Direction Control for SOMI0
DCM_SOMI0
58
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