MSP430G2231-EP_16 Datasheet, PDF (34/46 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430G2231-EP
SLAS862 – JUNE 2012
Port P1 Pin Schematic: P1.4, Input/Output With Schmitt Trigger
To ADC10 VREF+
To ADC10
INCHx = y
ADC10AE0.y
PxDIR.y
PxREN.y
PxSEL.y
1
Direction
0
0: Input
1: Output
PxOUT.y
SMCLK
PxSEL.y
0
1
DV_SS
0
DV _CC
1
1
Bus
Keeper
EN
PxIN.y
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P1.4/SMCLK/A4/VREF+/VEREF+/TCK
To Module
PxIRQ.y
PxSEL.y
PxIES.y
From JTAG
To JTAG
PxIE.y
EN
Q
Set
PxIFG.y
Interrupt
Edge
Select
PIN NAME (P1.x) x
P1.4/
SMCLK/
A4/
VREF+/
VEREF+/
TCK
P1.x (I/O)
SMCLK
A4
4
VREF+
VEREF+
TCK
Table 16. Port P1 (P1.4) Pin Functions
FUNCTION
P1DIR.x
I: 0; O: 1
1
X
X
X
X
CONTROL BITS / SIGNALS
P1SEL.x
ADC10AE.x
(INCH.x = 1)
0
0
1
0
X
1 (y = 4)
X
1
X
1
X
0
JTAG
Mode
0
0
0
0
0
1
34
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