MSP430G2X31 Datasheet, PDF (42/52 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430G2x31
MSP430G2x21
SLAS694C – FEBRUARY 2010 – REVISED JULY 2010
Port P1 Pin Schematic: P1.7, Input/Output With Schmitt Trigger -- MSP430G2x31
To ADC10
INC Hx
ADC10EA.y
PxDIR.y
from USI
PxREN.y
USIPE7
1
Direction
0
0: Input
1: Output
PxSEL.y
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PxSEL.y or
US IP E7
PxOUT.y
0
From USI
1
PxIN.y
PxSEL.y
DV_SS
0
DV_CC
1
1
Bus
Keeper
EN
P1.7/S DI/SDA/A7/TDO/TDI
To Module
PxIRQ.y
PxSEL.y
PxIES.y
From JTAG
To JTAG
From JTAG
To JTAG
PxIE.y
EN
Q
Set
PxIFG.y
Interrupt
Edge
Select
USI in I2C mode: Output driver drives low level only. Driver is disabled in JTAG mode.
PIN NAME (P1.x)
P1.7/
A7/
SDI/SDO
TDO/TDI
Table 23. Port P1 (P1.7) Pin Functions -- MSP430G2x31
x
FUNCTION
P1.x (I/O)
A7
7
SDI/SDO
TDO/TDI
P1DIR.x
I: 0; O: 1
x
x
x
CONTROL BITS / SIGNALS
P1SEL.x
USIP.x
ADC10AE.x
(INCH.x = 1)
0
0
0
x
0
1 (y = 7)
x
1
0
x
0
0
JTAG
Mode
0
0
0
1
42
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