155
SLAS826F – MARCH 2015 – REVISED MARCH 2017
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Detailed Description
Copyright © 2015–2017, Texas Instruments Incorporated
(1)
X = don't care
(2)
Not available on 80ZXH and 64RGC packages.
(3)
Setting P8SEL1.x and P8SEL0.x disables the output driver and the input Schmitt trigger to prevent parasitic cross currents when
applying analog signals.
6.12.12 Port P8 (P8.2 to P8.7) Input/Output With Schmitt Trigger
shows the port diagram.
summarizes the selection of the pin functions.
Table 6-73. Port P8 (P8.2 to P8.7) Pin Functions
PIN NAME (P8.x)
x
FUNCTION
CONTROL BITS OR SIGNALS
(1)
P8DIR.x
P8SEL1.x
P8SEL0.x
P8.2/TA3.2/A23
(2)
2
P8.2 (I/O)
I: 0; O: 1
0
0
TA3.CCI2A
0
0
1
TA3.2
1
N/A
0
1
0
DVSS
1
A23
(3)
X
1
1
P8.3/TA3CLK/A22
(2)
3
P8.3 (I/O)
I: 0; O: 1
0
0
TA3CLK
0
0
1
DVSS
1
N/A
0
1
0
DVSS
1
A22
(3)
X
1
1
P8.4/A21
(2)
4
P8.4 (I/O)
I: 0; O: 1
0
0
N/A
0
0
1
DVSS
1
N/A
0
1
0
DVSS
1
A21
(3)
X
1
1
P8.5/A20
(2)
5
P8.5 (I/O)
I: 0; O: 1
0
0
N/A
0
0
1
DVSS
1
N/A
0
1
0
DVSS
1
A20
(3)
X
1
1
P8.6/A19
(2)
6
P8.6 (I/O)
I: 0; O: 1
0
0
N/A
0
0
1
DVSS
1
N/A
0
1
0
DVSS
1
A19
(3)
X
1
1
P8.7/A18
(2)
7
P8.7 (I/O)
I: 0; O: 1
0
0
N/A
0
0
1
DVSS
1
N/A
0
1
0
DVSS
1
A18
(3)
X
1
1