MSP430xW42x
MIXED SIGNAL MICROCONTROLLER
SLAS383A 鈭?OCTOBER 2003 鈭?REVISED AUGUST 2004
APPLICATION INFORMATION
input/output schematic (continued)
port P6, P6.6 input/output with Schmitt-trigger
P6SEL.6
P6DIR.6
0
1
0
1
0: Input
1: Output
Pad Logic
P6.6/SIFCI2/DACOUT
P6OUT.6
DVss
Bus Keeper
P6IN.6
EN
Module X IN
D
From Scan I/F DAC
To Scan I/F comparator input mux
P6SEL.x must be set if the corresponding pins are used by the Scan IF.
1
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鈫? or 1鈫?. The value of the throughput current depends on the driving capability of the
gate. For MSP430, it is approximately 100
碌A.
Use P6SEL.x=1 to prevent throughput current. P6SEL.x should be set, if an analog signal is applied to the pin.
P6SEL.6
0
0
1
1
P6DIR.6
0
1
0
1
Port Function
P6.6 Input
P6.6 Output
SIFCI2 (Scan IF channel 2 comparator input)
SIFDAOUT (Scan IF DAC output)
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
47
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