Microchip Technology ARD00385 Data Sheet
PIC18F87K90 FAMILY
DS39957D-page 178
2009-2011 Microchip Technology Inc.
TABLE 11-16: PORTH FUNCTIONS
Pin Name
Function
TRIS
Setting
I/O
I/O
Type
Description
RH0/SEG47/
AN23
AN23
RH0
0
O
DIG
LATH<0> data output.
1
I
ST
PORTH<0> data input.
SEG47
1
O
ANA
LCD Segment 47 output; disables all other pin functions.
AN23
1
I
ANA
A/D Input Channel 23. Default input configuration on POR; does not
affect digital input.
affect digital input.
RH1/SEG46/
AN22
AN22
RH1
0
O
DIG
LATH<1> data output.
1
I
ST
PORTH<1> data input.
SEG46
1
O
ANA
LCD Segment 46 output; disables all other pin functions.
AN22
1
I
ANA
A/D Input Channel 22. Default input configuration on POR; does not
affect digital input.
affect digital input.
RH2/SEG45/
AN21
AN21
RH2
0
O
DIG
LATH<2> data output.
1
I
ST
PORTH<2> data input.
SEG45
1
O
ANA
LCD Segment 45 output; disables all other pin functions.
AN21
1
I
ANA
A/D Input Channel 21. Default input configuration on POR; does not
affect digital input.
affect digital input.
RH3/SEG44/
AN20
AN20
RH3
0
O
DIG
LATH<3> data output.
1
I
ST
PORTH<3> data input.
SEG44
1
O
ANA
LCD Segment 44 output; disables all other pin functions.
AN20
1
I
ANA
A/D Input Channel 20.
Default input configuration on POR; does not affect digital input.
Default input configuration on POR; does not affect digital input.
RH4/SEG40/
CCP9/P3C/
AN12/C2INC
CCP9/P3C/
AN12/C2INC
RH4
0
O
DIG
LATH<4> data output.
1
I
ST
PORTH<4> data input.
SEG40
1
O
ANA
LCD Segment 40 output; disables all other pin functions.
CCP9
0
O
DIG
CCP9 compare/PWM output; takes priority over port data.
1
I
ST
CCP9 capture input.
P3C
0
O
—
ECCP3 PWM Output C. May be configured for tri-state during
Enhanced PWM.
Enhanced PWM.
AN12
1
I
ANA
A/D Input Channel 12. Default input configuration on POR; does not
affect digital input.
affect digital input.
C2INC
x
I
ANA
Comparator 2 Input C.
RH5/SEG41/
CCP8/P3B/
AN13/C2IND
CCP8/P3B/
AN13/C2IND
RH5
0
O
DIG
LATH<5> data output.
1
I
ST
PORTH<5> data input.
SEG41
1
O
ANA
LCD Segment 41 output; disables all other pin functions.
CCP8
0
O
DIG
CCP8 compare/PWM output; takes priority over port data.
1
I
ST
CCP8 capture input.
P3B
0
O
—
ECCP3 PWM Output B. May be configured for tri-state during
Enhanced PWM.
Enhanced PWM.
AN13
1
I
ANA
A/D Input Channel 13. Default input configuration on POR; does not
affect digital input.
affect digital input.
C2IND
x
I
ANA
Comparator 2 Input D.
Legend:
O = Output, I = Input, ANA = Analog Signal, DIG = Digital Output, ST = Schmitt Trigger Buffer Input,
x
x
= Don’t care (TRIS bit does not affect port direction or is overridden for this option).