PIC18F1220 MICROCHIP [Microchip Technology], PIC18F1220 Datasheet - Page 98

• 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 10-13:
DS39605C-page 96
P1B/D Tri-State Auto-Shutdown
Note 1:
WR LATB or
WR TRISB
T1OSCEN
T13CKI
2:
Data Bus
PGC
PORTB
ECCP1 P1C/D Enable
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>).
Set RBIF
From other
RB7:RB4 pins
BLOCK DIAGRAM OF RB6/PGC/T1OSO/T13CKI/P1C/KBI2 PIN
P1C Data
RBPU
(2)
TRIS Latch
RD PORTB
D
Data Latch
D
RD LATB
RD TRISB
CK
CK
Q
Q
Q
Q
DD
and V
Q
SS
.
EN
D
1
0
RD PORTB
Q
EN
Q3
D
TTL
Buffer
V
P Weak
DD
Pull-up
Q1
Schmitt
Trigger
 2004 Microchip Technology Inc.
RB6 pin
Timer1
Oscillator
From RB7 pin