MSP430x15x, MSP430x16x, MSP430x161x
MIXED SIGNAL MICROCONTROLLER
SLAS368D− OCTOBER 2002− REVISED MARCH 2005
Terminal Functions (Continued)
TERMINAL
NAME
P5.4/MCLK
P5.5/SMCLK
P5.6/ACLK
P5.7/TBOUTH/
SVSOUT
P6.0/A0
P6.1/A1
P6.2/A2
P6.3/A3
P6.4/A4
P6.5/A5
P6.6/A6/DAC0
P6.7/A7/DAC1/
SVSIN
RST/NMI
TCK
TDI/TCLK
TDO/TDI
TMS
VeREF+
VREF+
VREF−/VeREF−
XIN
XOUT
XT2IN
XT2OUT
QFN Pad
NO.
48
49
50
51
59
60
61
2
3
4
5
6
58
57
55
54
56
10
7
11
8
9
53
52
NA
I/O
I/O
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
O
I
I
O
I
O
NA
DESCRIPTION
General-purpose digital I/O pin/main system clock MCLK output
General-purpose digital I/O pin/submain system clock SMCLK output
General-purpose digital I/O pin/auxiliary clock ACLK output
General-purpose digital I/O pin/switch all PWM digital output ports to high impedance − Timer_B TB0 to
TB6/SVS comparator output
General-purpose digital I/O pin/analog input a0 – 12-bit ADC
General-purpose digital I/O pin/analog input a1 – 12-bit ADC
General-purpose digital I/O pin/analog input a2 – 12-bit ADC
General-purpose digital I/O pin/analog input a3 – 12-bit ADC
General-purpose digital I/O pin/analog input a4 – 12-bit ADC
General-purpose digital I/O pin/analog input a5 – 12-bit ADC
General-purpose digital I/O pin/analog input a6 – 12-bit ADC/DAC12.0 output
General-purpose digital I/O pin/analog input a7 – 12-bit ADC/DAC12.1 output/SVS input
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
Test data input or test clock input. The device protection fuse is connected to TDI/TCLK.
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
Output of positive terminal of the reference voltage in the ADC12
Negative terminal for the 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
Input port for crystal oscillator XT2. Only standard crystals can be connected.
Output terminal of crystal oscillator XT2
QFN package pad connection to DVSS recommended (RTD package only)
8
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