PIC18F1220 MICROCHIP [Microchip Technology], PIC18F1220 Datasheet - Page 94

• Manufacturer Part Number: PIC18F1220
• Description: 18/20/28-Pin High-Performance, Enhanced Flash Microcontrollers with 10-bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F1220/1320
FIGURE 10-9:
DS39605C-page 92
P1B/D Tri-State
Auto-Shutdown
Note 1:
INT2 Input
P1B Enable
P1B Data
2:
WR LATB or
I/O pins have diode protection to V
To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit (INTCON2<7>).
WR TRISB
BLOCK DIAGRAM OF RB2/P1B/INT2 PIN
Data Bus
PORTB
RD PORTB
Data Latch
TRIS Latch
D
D
RD LATB
CK
CK
RBPU
RD TRISB
Q
Q
(2)
DD
and V
SS
.
1
0
Schmitt
Trigger
Q
EN
TTL
Input
Buffer
RD PORTB
D
V
P
 2004 Microchip Technology Inc.
DD
Weak
Pull-up
RB2 pin
(1)