Datasheet

MSP430F21x1
SLAS439F –SEPTEMBER 2004– REVISED AUGUST 2011 www.ti.com
Table 18. Port P1 (P1.4 to P1.7) Pin Functions
CONTROL BITS / SIGNALS
(1)
PIN NAME (P1.x) x FUNCTION
P1DIR.x P1SEL.x TEST
P1.4
(2)
(I/O) I: 0; O: 1 0 0
P1.4/SMCLK/TCK 4 SMCLK 1 1 0
TCK X X 1
P1.5
(2)
(I/O) I: 0; O: 1 0 0
P1.5/TA0/TMS 5 Timer_A3.TA0 1 1 0
TMS X X 1
P1.6
(2)
(I/O) I: 0; O: 1 0 0
P1.6/TA1/TDI/TCLK 6 Timer_A3.TA1 1 1 0
TDI/TCLK
(3)
X X 1
P1.7
(2)
(I/O) I: 0; O: 1 0 0
P1.7/TA2/TDO/TDI 7 Timer_A3.TA2 1 1 0
TDO/TDI
(3)
X X 1
(1) X = don't care
(2) Default after reset (PUC/POR)
(3) Function controlled by JTAG
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