MSP430F41x2
MIXED SIGNAL MICROCONTROLLER
SLAS648E -- APRIL 2009 -- REVISED MARCH 2011
APPLICATION INFORMATION
Port P4 pin schematic: P4.0 to P4.7 input/output with Schmitt trigger
LCDS0/4
Pad Logic
Segment Sy
P4DIR.x
0
1
Direction
0: Input
1: Output
P4OUT.x
0
1
Module X Out
P4.0/S7
P4.1/S6
P4.2/S5
P4.3/S4
P4.4/S3
Bus
Keeper
EN
P4SEL.x
P4IN.x
P4.5/S2
P4.6/S1
P4.7/ADC10CLK/S0
Port P4 (P4.0 to P4.7) pin functions
CONTROL BITS / SIGNALS
PIN NAME (P4.X)
P4.0/S7
X
FUNCTION
LCDS4
LCDS0
P4DIR.x
P4SEL.x
0
P4.x (I/O)
S7
I: 0, O: 1
0
x
0
x
0
x
0
x
0
x
0
x
0
x
0
1
x
0
x
1 (LCDS4)
P4.1/S6
1
2
3
4
5
6
7
P4.x (I/O)
S6
I: 0, O: 1
0
x
1 (LCDS4)
P4.2/S5
P4.x (I/O)
S5
I: 0, O: 1
0
x
1 (LCDS4)
P4.3/S4
P4.x (I/O)
S4
I: 0, O: 1
0
x
1 (LCDS4)
P4.4/S3
P4.x (I/O)
S3
I: 0, O: 1
0
x
1 (LCDS0)
P4.5/S2
P4.x (I/O)
S2
I: 0, O: 1
0
x
1 (LCDS0)
P4.6/S1
P4.x (I/O)
S1
I: 0, O: 1
0
x
1 (LCDS0)
P4.7/ADC10CLK/S0
P4.x (I/O)
ADC10CLK
S0
I: 0, O: 1
0
0
1
x
1 (LCDS0)
NOTES: 1. x: Don’t care
60
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