MSP430FG47x
MIXED SIGNAL MICROCONTROLLER
SLAS580D -- OCTOBER 2008 -- REVISED MARCH 2011
76
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
Port P3 pin schematic: P3.4 to P3.7, input/output with Schmitt trigger
P3.4/S28
P3.5/S29
P3.6/S30
P3.7/S31
Direction
0: Input
1: Output
P3SEL.x
P3DIR.x
P3IN.x
Module X Out
P3OUT.x
1
0
1
0
Bus
Keeper
EN
Pad Logic
Segment Sy
LCDS28
Port P3 (P3.4 to P3.7) pin functions
PIN NAME (P3 X)
X
FUNCTION
CONTROL BITS / SIGNALS
PIN NAME (P3.X)
X
FUNCTION
P3DIR.x
P3SEL.x
LCDS28
P3.4/S28
4
P3.x (I/O)
I: 0, O: 1
0
0
/
S28
x
x
1
P3.5/S29
5
P3.x (I/O)
I: 0, O: 1
0
0
/
S29
x
x
1
P3.6/S30
6
P3.x (I/O)
I: 0, O: 1
0
0
/
S30
x
x
1
P3.7/S31
7
P3.x (I/O)
I: 0, O: 1
0
0
/
S31
x
x
1
NOTES: 1. x: Don’t care.
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