P7.3/XT2OUT
1
0
P7DIR.3
P7IN.3
P7OUT.3
1
0
DV
SS
DV
CC
P7REN.3
Pad Logic
1
P7DS.3
0: Low drive
1: High drive
Bus
Keeper
To XT2
P7SEL.2
XT2BYPASS
P7SEL.3
MSP430F5338, MSP430F5336, MSP430F5335, MSP430F5333
SLAS721D – AUGUST 2010 – REVISED DECEMBER 2015
www.ti.com
6.13.9 Port P7, P7.3, Input/Output With Schmitt Trigger
Figure 6-10. Port P7 (P7.3) Schematic
Table 6-56. Port P7 (P7.2 and P7.3) Pin Functions
CONTROL BITS OR SIGNALS
(1)
PIN NAME (P5.x)
x
FUNCTION
P7DIR.x
P7SEL.2
P7SEL.3
XT2BYPASS
P7.2/XT2IN
2
P7.2 (I/O)
I: 0; O: 1
0
X
X
XT2IN crystal mode
(2)
X
1
X
0
XT2IN bypass mode
(2)
X
1
X
1
P7.3/XT2OUT
3
P7.3 (I/O)
I: 0; O: 1
0
0
X
XT2OUT crystal mode
(3)
X
1
X
0
P7.3 (I/O)
(3)
X
1
0
1
(1)
X = Don't care
(2)
Setting P7SEL.2 causes the general-purpose I/O to be disabled. Pending the setting of XT2BYPASS, P7.2 is configured for crystal
mode or bypass mode.
(3)
Setting P7SEL.2 causes the general-purpose I/O to be disabled in crystal mode. When using bypass mode, P7.3 can be used as
general-purpose I/O.
92
Detailed Description
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