MSP430F673x
MSP430F672x
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SLAS731A –DECEMBER 2011–REVISED APRIL 2012
Port P9, P9.1 to P9.3, Input/Output With Schmitt Trigger (MSP430F67xxIPZ Only)
Pad Logic
To ADC10
INCHx = y
P9REN.x
DVSS
DVCC
0
1
1
P9DIR.x
P9OUT.x
P9.1/A5
P9.2/A4
P9.3/A3
P9DS.x
0: Low drive
1: High drive
P9SEL.x
P9IN.x
Bus
Keeper
Table 78. Port P9 (P9.1 to P9.3) Pin Functions (MSP430F67xxIPZ Only)
CONTROL BITS/SIGNALS(1)
PIN NAME (P9.x)
x
FUNCTION
P9DIR.x
I: 0; O: 1
X
P9SEL.x
P9.1/A5
1
P9.1 (I/O)
A5(2)
0
1
0
1
0
1
P9.2/A4
P9.3/A3
2
3
P9.2 (I/O)
A4(2)
I: 0; O: 1
X
P9.3 (I/O)
A3(2)
I: 0; O: 1
X
(1) X = Don't care
(2) Setting P9SEL.x bit disables the output driver as well as the input Schmitt trigger.
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