MSP430X15X Datasheet, PDF (60/73 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430x15x, MSP430x16x, MSP430x161x
MIXED SIGNAL MICROCONTROLLER
SLAS368E − OCTOBER 2002 − REVISED AUGUST 2006
APPLICATION INFORMATION
input/output schematic (continued)
port P6, P6.0 to P6.5, input/output with Schmitt-trigger
P6SEL.x
P6DIR.x
Direction Control
From Module
0
0: Input
1
1: Output
0
P6OUT.x
Module X OUT
1
Pad Logic
P6IN.x
EN
Module X IN
D
Bus Keeper
P6.0/A0
P6.1/A1
P6.2/A2
P6.3/A3
P6.4/A4
P6.5/A5
From ADC
To ADC
x: Bit Identifier, 0 to 5 for Port P6
NOTE: Analog signals applied to digital gates can cause current flow from the positive to the negative terminal. The throughput current flows if
the analog signal is in the range of transitions 0→1 or 1←0. The value of the throughput current depends on the driving capability of the
gate. For MSP430, it is approximately 100 μA.
Use P6SEL.x=1 to prevent throughput current. P6SEL.x should be set, even if the signal at the pin is not being used by the ADC12.
PnSel.x
PnDIR.x
DIR. CONTROL
FROM MODULE
PnOUT.x
P6Sel.0
P6DIR.0
P6DIR.0
P6OUT.0
P6Sel.1
P6DIR.1
P6DIR.1
P6OUT.1
P6Sel.2
P6DIR.2
P6DIR.2
P6OUT.2
P6Sel.3
P6DIR.3
P6DIR.3
P6OUT.3
P6Sel.4
P6DIR.4
P6DIR.4
P6OUT.4
P6Sel.5
P6DIR.5
P6DIR.5
P6OUT.5
NOTE: The signal at pins P6.x/Ax is used by the 12-bit ADC module.
MODULE X OUT
DV_SS
DV_SS
DV_SS
DV_SS
DV_SS
DV_SS
PnIN.x
P6IN.0
P6IN.1
P6IN.2
P6IN.3
P6IN.4
P6IN.5
MODULE X IN
unused
unused
unused
unused
unused
unused
60
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