Datasheet

MSP430x43x1, MSP430x43x, MSP430x44x1, MSP430x44x
MIXED SIGNAL MICROCONTROLLER
SLAS344G − JANUARY 2002 − REVISED OCTOBER 2009
19
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MSP430x44x1 Terminal Functions (Continued)
TERMINAL
PN
I/O DESCRIPTION
NAME NO.
P1.6/CA0 81 I/O General-purpose digital I/O / Comparator_A input
P1.5/TACLK/
ACLK
82 I/O General-purpose digital I/O / Timer_A, clock signal TACLK input / ACLK output (divided by 1, 2, 4, or 8)
P1.4/TBCLK/
SMCLK
83 I/O General-purpose digital I/O / input clock TBCLK—Timer_B7 / submain system clock SMCLK output
P1.3/TBOUTH/
SVSOUT
84 I/O
General-purpose digital I/O / switch all PWM digital output ports to high impedance—Timer_B7 TB0 to TB6
/ SVS: output of SVS comparator
P1.2/TA1 85 I/O General-purpose digital I/O / Timer_A, Capture: CCI1A input, compare: Out1 output
P1.1/TA0/MCLK 86 I/O
General-purpose digital I/O / Timer_A. Capture: CCI0B input / MCLK output.
Note: TA0 is only an input on this pin / BSL receive
P1.0/TA0 87 I/O General-purpose digital I/O / Timer_A. Capture: CCI0A input, compare: Out0 output / BSL transmit
XT2OUT 88 O Output terminal of crystal oscillator XT2
XT2IN 89 I Input port for crystal oscillator XT2. Only standard crystals can be connected.
TDO/TDI 90 I/O Test data output port. TDO/TDI data output or programming data input terminal
TDI/TCLK 91 I Test data input or test clock input. The device protection fuse is connected to TDI/TCLK.
TMS 92 I Test mode select. TMS is used as an input port for device programming and test.
TCK 93 I Test clock. TCK is the clock input port for device programming and test.
RST/NMI 94 I Reset input or nonmaskable interrupt input port
P6.0 95 I/O General-purpose digital I/O
P6.1 96 I/O General-purpose digital I/O
P6.2 97 I/O General-purpose digital I/O
AV
SS
98
Analog supply voltage, negative terminal. Supplies SVS, brownout, oscillator, comparator_A, port 1, and
LCD resistive divider circuitry.
DV
SS1
99 Digital supply voltage, negative terminal.
AV
CC
100
Analog supply voltage, positive terminal. Supplies SVS, brownout, oscillator, comparator_A, port 1, and
LCD resistive divider circuitry; must not power up prior to DV
CC1
/DV
CC2
.