
MSP430FG43x
MIXED SIGNAL MICROCONTROLLER
SLAS380B APRIL 2004 REVISED JUNE 2007
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
MSP430FG43x Terminal Functions
TERMINAL
PN
I/O
DESCRIPTION
NAME
NO.
I/O
DESCRIPTION
DVCC1
1
Digital supply voltage, positive terminal.
P6.3/A3/OA1I1/OA1O
2
I/O
General-purpose digital I/O / analog input a3—12-bit ADC / OA1 output and/or input multiplexer on
+terminal and terminal
P6.4/A4/OA1I0
3
I/O
General-purpose digital I/O / analog input a4—12-bit ADC / OA1 input multiplexer on +terminal and
terminal
P6.5/A5/OA2I1/OA2O
4
I/O
General-purpose digital I/O / analog input a5—12-bit ADC / OA2 output and/or input multiplexer on
+terminal and terminal
P6.6/A6/DAC0/OA2I0
5
I/O
General-purpose digital I/O / analog input a6—12-bit ADC / DAC12.0 output / OA2 input multiplexer
on +terminal and terminal
P6.7/A7/DAC1/
SVSIN
6
I/O
General-purpose digital I/O / analog input a7—12-bit ADC / DAC12.1 output/analog input to supply
voltage supervisor
VREF+
7
O
Positive output terminal of the reference voltage in the ADC
XIN
8
I
Input terminal of crystal oscillator XT1
XOUT
9
O
Output terminal of crystal oscillator XT1
VeREF+/DAC0
10
I/O
Positive input terminal for an external reference voltage to the 12-bit ADC/DAC12.0 output
VREF/VeREF
11
I
Negative terminal for the 12-bit ADC’s reference voltage for both sources, the internal reference
voltage or an external applied reference voltage to the 12-bit ADC.
P5.1/S0/A12/DAC1
12
I/O
General-purpose digital I/O / LCD segment output 0/ analog input a12—12-bit ADC/DAC12.1 output
P5.0/S1/A13
13
I/O
General-purpose digital I/O / LCD segment output 1/ analog input a13—12-bit ADC
P4.7/S2/A14
14
I/O
General-purpose digital I/O / LCD segment output 2/ analog input a14—12-bit ADC
P4.6/S3/A15
15
I/O
General-purpose digital I/O / LCD segment output 3/ analog input a15—12-bit ADC
P4.5/S4
16
I/O
General-purpose digital I/O / LCD segment output 4
P4.4/S5
17
I/O
General-purpose digital I/O / LCD segment output 5
P4.3/S6
18
I/O
General-purpose digital I/O / LCD segment output 6
P4.2/S7
19
I/O
General-purpose digital I/O / LCD segment output 7
P4.1/S8
20
I/O
General-purpose digital I/O / LCD segment output 8
P4.0/S9
21
I/O
General-purpose digital I/O / LCD segment output 9
S10
22
O
LCD segment output 10
S11
23
O
LCD segment output 11
S12
24
O
LCD segment output 12
S13
25
O
LCD segment output 13
S14
26
O
LCD segment output 14
S15
27
O
LCD segment output 15
S16
28
O
LCD segment output 16
S17
29
O
LCD segment output 17
P2.7/ADC12CLK/S18
30
I/O
General-purpose digital I/O / conversion clock—12-bit ADC / LCD segment output 18
P2.6/CAOUT/S19
31
I/O
General-purpose digital I/O / Comparator_A output / LCD segment output 19
S20
32
O
LCD segment output 20
S21
33
O
LCD segment output 21
S22
34
O
LCD segment output 22
S23
35
O
LCD segment output 23
P3.7/S24
36
I/O
General-purpose digital I/O / LCD segment output 24
P3.6/S25/DMAE0
37
I/O
General-purpose digital I/O / LCD segment output 25/DMA Channel 0 external trigger
P3.5/S26
38
I/O
General-purpose digital I/O / LCD segment output 26
P3.4/S27
39
I/O
General-purpose digital I/O / LCD segment output 27