Datasheet

PIC14000
DS40122B-page 28
Preliminary
 1996 Microchip Technology Inc.
TABLE 5-1: PORT RC0 PIN CONFIGURATION SUMMARY
FIGURE 5-4: BLOCK DIAGRAM OF PORTC<5:4> PINS
RC0 Pin
Configuration
TRISC<0>
RCPU
OPTION<7>
CMAOE
CMCON<1>
Comment
Digital Input (weak pull-up) 1 0 0
Digital Input (no pull-up) 1 1 0
Digital Output 0 X 0
Analog Output 0 X 1 Must clear TRISC<0> to disable pull-up when
used as an analog output.
D
Q
CK
Q
D
Q
CK
Q
D
Q
EN
Data
Bus
Write
PORTC
Write
TRISC
Read
TRISC
P
I/O
Pin
V
DD
Schmitt Trigger
Input
Buffer
RCPU
D
Q
EN
Read
PORTC
Read PORTC
From other
PORTC pins
Set
RCIF
1. I/O pins have protection diodes to VDD and VSS.
2. Port Latch = ‘1’ and TRISC = ‘1’ enables weak pull-up if RCPU
= ‘0’ in OPTION register.
HIBERNATE