MSP430x13x, MSP430x14x
MIXED SIGNAL MICROCONTROLLER
SLAS272D – JULY 2000 – REVISED MARCH 2003
Terminal Functions (Continued)
TERMINAL
NAME
P5.6/ACLK
P5.7/TboutH
P6.0/A0
P6.1/A1
P6.2/A2
P6.3/A3
P6.4/A4
P6.5/A5
P6.6/A6
P6.7/A7
RST/NMI
TCK
TDI
TDO/TDI
TMS
VeREF+
VREF+
VREF–/VeREF–
XIN
XOUT/TCLK
XT2IN
XT2OUT
NO.
50
51
59
60
61
2
3
4
5
6
58
57
55
54
56
10
7
11
8
9
53
52
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
I
I/O
I
I/P
O
O
I
I/O
I
O
DESCRIPTION
General-purpose digital I/O, auxiliary clock ACLK output
General-purpose digital I/O, switch all PWM digital output ports to high impedance – Timer_B7 TB0 to TB6
General digital I/O, analog input a0 – 12-bit ADC
General digital I/O, analog input a1 – 12-bit ADC
General digital I/O, analog input a2 – 12-bit ADC
General digital I/O, analog input a3 – 12-bit ADC
General digital I/O, analog input a4 – 12-bit ADC
General digital I/O, analog input a5 – 12-bit ADC
General digital I/O, analog input a6 – 12-bit ADC
General digital I/O, analog input a7 – 12-bit ADC
Reset input, nonmaskable interrupt input port, or bootstrap loader start (in Flash devices).
Test clock. TCK is the clock input port for device programming test and bootstrap loader start (in Flash
devices).
Test data input. TDI is used as a data input port. The device protection fuse is connected to TDI.
Test data output port. TDO/TDI data output or programming data input terminal
Test mode select. TMS is used as an input port for device programming and test.
Input for an external reference voltage to the ADC
Output of positive terminal of the reference voltage in the ADC
Negative terminal for the ADC’s reference voltage for both sources, the internal reference voltage, or an
external applied reference voltage
Input port for crystal oscillator XT1. Standard or watch crystals can be connected.
Output terminal of crystal oscillator XT1 or test clock input
Input port for crystal oscillator XT2. Only standard crystals can be connected.
Output terminal of crystal oscillator XT2
6
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