ꢀ ꢁꢂꢃ ꢄ ꢅ ꢆ ꢇ ꢄ ꢆ ꢈ ꢀ ꢁꢂꢃ ꢄ ꢅ ꢆ ꢇ ꢃ ꢆ ꢈ ꢀ ꢁꢂꢃ ꢄꢅ ꢆꢇꢃ ꢆꢇ
ꢀ ꢉꢊꢋ ꢌ ꢁꢉ ꢍ ꢎꢏꢐ ꢀ ꢉꢑꢒꢓ ꢑꢓ ꢎꢔ ꢒꢓ ꢐꢐ ꢋꢒ
SLAS272F − JULY 2000 − REVISED JUNE 2004
APPLICATION INFORMATION
input/output schematic (continued)
port P6, P6.0 to P6.7, input/output with Schmitt-trigger
P6SEL.x
0
0: Input
P6DIR.x
Direction Control
From Module
1: Output
1
0
1
Pad Logic
P6.0 .. P6.7
P6OUT.x
Module X OUT
Bus Keeper
P6IN.x
EN
D
Module X IN
Note: Not implemented in the MSP430x14x1 devices
From ADC
To ADC
x: Bit Identifier, 0 to 7 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.
DIR. CONTROL
FROM MODULE
PnSel.x
PnDIR.x
PnOUT.x
MODULE X OUT
PnIN.x
MODULE X IN
P6Sel.0
P6Sel.1
P6Sel.2
P6Sel.3
P6Sel.4
P6Sel.5
P6Sel.6
P6Sel.7
P6DIR.0
P6DIR.1
P6DIR.2
P6DIR.3
P6DIR.4
P6DIR.5
P6DIR.6
P6DIR.7
P6DIR.0
P6OUT.0
P6OUT.1
P6OUT.2
P6OUT.3
P6OUT.4
P6OUT.5
P6OUT.6
P6OUT.7
DV
DV
DV
DV
DV
DV
DV
DV
P6IN.0
P6IN.1
P6IN.2
P6IN.3
P6IN.4
P6IN.5
P6IN.6
P6IN.7
unused
unused
unused
unused
unused
unused
unused
unused
SS
SS
SS
SS
SS
SS
SS
SS
P6DIR.1
P6DIR.2
P6DIR.3
P6DIR.4
P6DIR.5
P6DIR.6
P6DIR.7
NOTE: The signal at pins P6.x/Ax is used by the 12-bit ADC module.
51
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
