Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller TSSOP 28 16-Bit 16 MHz I/O number 24

MSP430F21x2

www.ti.com

SLAS578J –NOVEMBER 2007– REVISED JANUARY 2012

Table 2. Terminal Functions

TERMINAL

NO.

I/O DESCRIPTION

NAME

RHB,

RTV

General-purpose digital I/O pin

Timer0_A3, clock signal TACLK input

P1.0/TACLK/ADC10CLK/CAOUT 21 21 I/O Timer1_A2, clock signal TACLK input

ADC10, conversion clock

Comparator_A+ output

General-purpose digital I/O pin

P1.1/TA0.0/TA1.0 22 22 I/O Timer0_A3, capture: CCI0A input, compare: Out0 Output

Timer1_A2, capture: CCI0A input

General-purpose digital I/O pin

P1.2/TA0.1 23 23 I/O

Timer0_A3, capture: CCI1A input, compare: Out1 Output

General-purpose digital I/O pin

P1.3/TA0.2 24 24 I/O

Timer0_A3, capture: CCI2A input, compare: Out2 Output

General-purpose digital I/O pin

P1.4/SMCLK/TCK 25 25 I/O SMCLK signal output

Test Clock input for device programming and test

General-purpose digital I/O pin

P1.5/TA0.0/TMS 26 26 I/O Timer0_A3, compare: Out0 Output

JTAG test mode select, input terminal for device programming and test

General-purpose digital I/O pin

P1.6/TA0.1/TDI/TCLK 27 27 I/O Timer0_A3, compare: Out1 Output

JTAG test data input or test clock input in programming an test

General-purpose digital I/O pin

P1.7/TA0.2/TDO/TDI 28 28 I/O Timer0_A3, compare: Out2 Output

JTAG test data output terminal or test data input in programming an test

General-purpose digital I/O pin

ACLK signal output

P2.0/ACLK/A0/CA2 8 6 I/O

ADC10 analog input A0

Comparator_A+ input

General-purpose digital I/O pin

SMCLK signal output

Timer0_A3, clock signal TACLK input

P2.1/TAINCLK/SMCLK/A1/CA3 9 7 I/O

Timer1_A2, clock signal TACLK input

ADC10 analog input A1

Comparator_A+ input

General-purpose digital I/O pin

Timer0_A3, capture: CCI0B input, compare: Out0 Output

P2.2/TA0.0/A2/CA4/CAOUT 10 8 I/O ADC10 analog input A2

Comparator_A+ input

Comparator_A+ output

General-purpose digital I/O pin

Timer0_A3, compare: Out1 Output

P2.3/TA0.1/A3/V

REF-

/Ve

REF-

/CA0 19 18 I/O

ADC10 analog input A3 / negative reference

Comparator_A+ input