MSP430X20X1 Datasheet, PDF (8/80 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430x20x1, MSP430x20x2, MSP430x20x3
MIXED SIGNAL MICROCONTROLLER
SLAS491A − AUGUST 2005 − REVISED OCTOBER 2005
Terminal Functions, MSP430x20x2
NAME
P1.0/TACLK/ACLK/A0
TERMINAL
PW, or N
NO.
2
RSA
NO.
1
P1.1/TA0/A1
P1.2/TA1/A2
P1.3/ADC10CLK/
A3/VREF−/VeREF−
3
2
4
3
5
4
P1.4/SMCLK/A4/VREF+/VeREF+/
6
5
TCK
P1.5/TA0/A5/SCLK/TMS
7
6
P1.6/TA1/A6/SDO/SCL/TDI/TCLK
8
7
P1.7/A7/SDI/SDA/TDO/TDI†
9
8
XIN/P2.6/TA1
XOUT/P2.7
RST/NMI/SBWTDIO
TEST/SBWTCK
VCC
VSS
13
12
12
11
10
9
11
10
1
NA
14
NA
DESCRIPTION
I/O
I/O General-purpose digital I/O pin
Timer_A, clock signal TACLK input
ACLK signal ouput
ADC10 analog input A0
I/O General-purpose digital I/O pin
Timer_A, capture: CCI0A input, compare: Out0 output
ADC10 analog input A1
I/O General-purpose digital I/O pin
Timer_A, capture: CCI1A input, compare: Out1 output
ADC10 analog input A2
I/O General-purpose digital I/O pin
ADC10 conversion clock output
ADC10 analog input A3
Input for negative external reference voltage/negative internal reference
voltage output
I/O General-purpose digital I/O pin
SMCLK signal output
ADC10 analog input A4
Input for positive external reference voltage/positive internal reference
voltage output
JTAG test clock, input terminal for device programming and test
I/O General-purpose digital I/O pin
Timer_A, compare: Out0 output
ADC10 analog input A5
USI: external clock input in SPI or I2C mode; clock output in SPI mode
JTAG test mode select, input terminal for device programming and test
I/O General-purpose digital I/O pin
Timer_A, capture: CCI1B input, compare: Out1 output
ADC10 analog input A6
USI: Data output in SPI mode; I2C clock in I2C mode
JTAG test data input or test clock input during programming and test
I/O General-purpose digital I/O pin
ADC10 analog input A7
USI: Data input in SPI mode; I2C data in I2C mode
JTAG test data output terminal or test data input during programming and
test
I/O Input terminal of crystal oscillator
General-purpose digital I/O pin
Timer_A, compare: Out1 output
I/O Output terminal of crystal oscillator
General-purpose digital I/O pin
I Reset or nonmaskable interrupt input
Spy-Bi-Wire test data input/output during programming and test
I Selects test mode for JTAG pins on Port1. The device protection fuse is
connected to TEST.
Spy-Bi-Wire test clock input during programming and test
Supply voltage
Ground reference
8
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265