PIC18F-LF1XK50 Datasheet, PDF (96/420 Pages) Microchip Technology – 20-Pin USB Flash Microcontrollers

PIC18F/LF1XK50
TABLE 9-14: PORTC I/O SUMMARY
Pin
Function
TRIS
Setting
I/O
I/O
Type
Description
RC0/AN4/
C12IN+/VREF+/
INT0
RC0
AN4
0
O
DIG LATC<0> data output.
1
I
ST PORTC<0> data input.
1
I
ANA A/D input channel 4.
C12IN+
1
I
ANA Comparators C1 and C2 non-inverting input. Analog select is
shared with ADC.
VREF+
1
I
ANA ADC and comparator voltage reference high input.
INT0
1
I
ST External Interrupt 0 input.
RC1/AN5/
C12IN1-/VREF-/
INT1
RC1
AN5
0
O
DIG LATC<1> data output.
1
I
ST PORTC<1> data input.
1
I
ANA A/D input channel 5.
C12IN1- 1
I
ANA Comparators C1 and C2 inverting input. Analog select is
shared with ADC.
VREF-
1
I
ANA ADC and comparator voltage reference low input.
INT1
1
I
ST External Interrupt 1 input.
RC2/AN6/
C12IN2-/CVREF/
P1D/INT2
RC2
AN6
0
O
DIG LATC<2> data output.
1
I
ST PORTC<2> data input.
1
I
ANA A/D input channel 6.
C12IN2- 1
I
ANA Comparators C1 and C2 inverting input, channel 2. Analog select is
shared with ADC.
CVREF
x
O
ANA Voltage reference output. Enabling this feature disables digital I/O.
P1D
0
O
DIG ECCP1 Enhanced PWM output, channel D. May be configured for
tri-state during Enhanced PWM shutdown events. Takes priority over
port data.
INT2
1
I
ST External Interrupt 2 input.
RC3/AN7/
C12IN3-/P1C/
PGM
RC3
AN7
0
O
DIG LATC<3> data output.
1
I
ST PORTC<3> data input.
1
I
ANA A/D input channel 7.
C12IN3- 1
I
ANA Comparators C1 and C2 inverting input, channel 3. Analog select is
shared with ADC.
P1C
0
O
DIG ECCP1 Enhanced PWM output, channel C. May be configured for
tri-state during Enhanced PWM shutdown events. Takes priority over
port data.
PGM
x
I
ST Single-Supply Programming mode entry (ICSP™). Enabled by LVP
Configuration bit; all other pin functions disabled.
RC4/C12OUT/
P1B
RC4
0
O
DIG LATC<4> data output.
1
I
ST PORTC<4> data input.
C12OUT 0
O
DIG Comparator 1 and 2 output; takes priority over port data.
P1B
0
O
DIG ECCP1 Enhanced PWM output, channel B. May be configured for
tri-state during Enhanced PWM shutdown events. Takes priority over
port data.
Legend: DIG = Digital level output; TTL = TTL input buffer; ST = Schmitt Trigger input buffer; ANA = Analog level input/output;
I²C/SMB = I²C/SMBus input buffer; x = Don’t care (TRIS bit does not affect port direction or is overridden for this option).
DS41350E-page 96
Preliminary
 2010 Microchip Technology Inc.