P9.0/S7
P9.1/S6
P9.2/S5
P9.3/S4
P9.4/S3
P9.5/S2
P9.6/S1
P9.7/S0
Direction
0: Input
1: Output
P9DIR.x
P9IN.x
P9OUT.x
1
0
DV
SS
DV
CC
P9REN.x
Pad Logic
1
P9DS.x
0: Low drive
1: High drive
S0...S7
LCDS0...LCDS7
Bus
Keeper
MSP430F6438, MSP430F6436, MSP430F6435, MSP430F6433
SLAS720D – AUGUST 2010 – REVISED DECEMBER 2015
6.13.12 Port P9, P9.0 to P9.7, Input/Output With Schmitt Trigger
Figure 6-13. Port P9 (P9.0 to P9.7) Schematic
Table 6-60. Port P9 (P9.0 to P9.7) Pin Functions
CONTROL BITS OR SIGNALS
(1)
PIN NAME (P9.x)
x
FUNCTION
P9DIR.x
P9SEL.x
LCDS0...7
P9.0/S7
0
P9.0 (I/O)
I: 0; O: 1
0
0
S7
X
X
1
P9.1/S6
1
P9.1 (I/O)
I: 0; O: 1
0
0
S6
X
X
1
P9.2/S5
2
P9.2 (I/O)
I: 0; O: 1
0
0
S5
X
X
1
P9.3/S4
3
P9.3 (I/O)
I: 0; O: 1
0
0
S4
X
X
1
P9.4/S3
4
P9.4 (I/O)
I: 0; O: 1
0
0
S3
X
X
1
P9.5/S2
5
P9.5 (I/O)
I: 0; O: 1
0
0
S2
X
X
1
P9.6/S1
6
P9.6 (I/O)
I: 0; O: 1
0
0
S1
X
X
1
(1)
X = Don't care
102
Detailed Description
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