MSP430G2X21 Datasheet, PDF (37/61 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430G2x21, MSP430G2x31
MIXED SIGNAL MICROCONTROLLER
SLAS694B -- FEBRUARY 2010 -- REVISED MAY 2010
Port P1 pin schematic: P1.0 -- P1.3, input/output with Schmitt trigger -- MSP430G2x21
PxSEL.y
PxDIR.y
1
Direction
0
0: Input
1: Output
PxREN.y
PxOUT.y
From Module
PxSEL.y
0
1
DV_SS
0
DV_CC
1
1
P1.4/SMCLK/TCK
PxIN.y
To Module
PxIRQ.y
PxSEL.y
PxIES.y
PxIE.y
EN
Q
Set
PxIFG.y
Interrupt
Edge
Select
From JTAG
To JTAG
Port P1 (P1.4) pin functions -- MSP430G2x21
PIN NAME (P1.X) X
FUNCTION
P1.4/
SMCLK/
TCK
4 P1.x (I/O)
SMCLK
TCK
CONTROL BITS / SIGNALS
P1DIR.x P1SEL.x
JTAG
Mode
I: 0; O: 1
0
0
1
1
0
x
x
1
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