Datasheet

MSP430F23x0
MIXED SIGNAL MICROCONTROLLER
SLAS518A -- AUGUST 2006 -- REVISED MAY 2007
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Terminal Functions, MSP430F23x0
TERMINAL
D
E
S
C
R
I
P
T
I
O
N
NAME NO I/O
DESCRIPTION
DV
CC
1 Digital supply voltage, positive terminal. Supplies all digital parts.
XIN/P2.6/CA6 2 I/O Input terminal of crystal oscillator/general -purpose digital I/O pin/Comparator_A input
XOUT/P2.7/CA7 3 I/O Output terminal of crystal oscillator/general-purpose digital I/O pin/Comparator_A input
P1.0/TACLK 4 I/O General-purpose digital I/O pin/Timer_A, clock signal TACLK input
P1.1/TA0 5 I/O General-purpose digital I/O pin/Timer_A, capture: CCI0A input, compare: Out0 output
P1.2/TA1 6 I/O General-purpose digital I/O pin/Timer_A, capture: CCI1A input, compare: Out1 output
P1.3/TA2 7 I/O General-purpose digital I/O pin/Timer_A, capture: CCI2A input, compare: Out2 output
P1.4/SMCLK 8 I/O General-purpose digital I/O pin/SMCLK signal output
P1.5/TA0 9 I/O General-purpose digital I/O pin/Timer_A, compare: Out0 output
P1.6/TA1 10 I/O General-purpose digital I/O pin/Timer_A, compare: Out1 output
P1.7/TA2 11 I/O General-purpose digital I/O pin/Timer_A, compare: Out2 output
P2.0/ACLK/CA2 12 I/O General-purpose digital I/O pin/ACLK output/Comparator_A input
P2.1/TAINCLK/CA3 13 I/O General-purpose digital I/O pin/Timer_A, clock signal at INCLK/Comparator_A input
P2.2/CAOUT/TA0/CA4 14 I/O General-purpose digital I/O pin/Comparator_A output/Timer_A, capture: CCI0B input/Comparator_A
input
P2.3/CA0/TA1 15 I/O General-purpose digital I/O pin/Comparator_A input/Timer_A, compare: Out1 output
P2.4/CA1/TA2 16 I/O General-purpose digital I/O pin/Comparator_A input/Timer_A, compare: Out2 output
P2.5/R
OSC
/CA5 17 I/O General-purpose digital I/O pin/input for external resistor defining the DCO nominal
frequency/Comparator_A input
P3.0/UCB0STE/
UCA0CLK
18 I/O General-purpose digital I/O pin/USCIB0 slave transmit enable/USCIA0 clock input/output
P3.1/UCB0SIMO/
UCB0SDA
19 I/O General-purpose digital I/O pin/USCIB0 slave i n/master out in SPI mode, SDA I
2
CdatainI
2
Cmode
P3.2/UCB0SOMI/
UCB0SCL
20 I/O General-purpose digital I/O pin/USCIB0 slave out/master in in SPI mode, SCL I
2
C clock in I
2
C mode
P3.3/UCB0CLK/
UCA0STE
21 I/O General-purpose digital I/O/USCIB0 clock input/output, USCIA0 slave transmit enable
P3.4/UCA0TXD/
UCA0SIMO
22 I/O General-purpose digital I/O pin/USCIA0 transmit data output in UART mode, slave data in/master out in
SPI mode
P3.5/UCA0RXD/
UCA0SOMI
23 I/O General-purpose digital I/O pin/USCIA0 receive data input in UART mode, slave data out/master in in
SPI mode
P3.6 24 I/O General-purpose digital I/O pin
P3.7 25 I/O General-purpose digital I/O pin
P4.0/TB0 26 I/O General-purpose digital I/O pin/Timer_B, capture: CCI0A input, compare: Out0 output
P4.1/TB1 27 I/O General-purpose digital I/O pin/Timer_B, capture: CCI1A input, compare: Out1 output
P4.2/TB2 28 I/O General-purpose digital I/O pin/Timer_B, capture: CCI2A input, compare: Out2 output
P4.3/TB0 29 I/O General-purpose digital I/O pin/Timer_B, capture: CCI0B input, compare: Out0 output
P4.4/TB1 30 I/O General-purpose digital I/O pin/Timer_B, capture: CCI1B input, compare: Out1 output
P4.5/TB2 31 I/O General-purpose digital I/O pin/Timer_B, compare: Out2 output
P4.6/TBOUTH/ACLK 32 I/O General-purpose digital I/O pin/switch all PWM digital outputs to high impedance -- Timer_B3: TB0 to
TB2/ACLK output
P4.7/TBCLK 33 I/O General-purpose digital I/O pin/input clock TBCLK -- Timer_B3
TDO/TDI 34 I/O Test data output port. TDO/TDI data output or programming data input terminal
TDI/TCLK 35 I Test data input or test clock input. The device protection fuse is c onnected to TDI/TCLK.
TMS 36 I Test mode select. TMS is used as an input port for device programming and test.