PIC18F1220 MICROCHIP [Microchip Technology], PIC18F1220 Datasheet - Page 95

• 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]

FIGURE 10-10:
 2004 Microchip Technology Inc.
Note 1:
ECCP1
ECCP1
RBPU
P1A/C Tri-State Auto-Shutdown
ECCP1/P1A Data Out
Data Bus
WR LATB or
PORTB
WR TRISB
RD PORTB
ECCP1 Input
2:
3:
4:
(2)
(3)
(4)
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>).
ECCP1 pin output enable active for any PWM mode and Compare mode, where CCP1M<3:0> = 1000 or 1001.
ECCP1 pin input enable active for Capture mode only.
pin Output Enable
pin Input Enable
BLOCK DIAGRAM OF RB3/CCP1/P1A PIN
Data Latch
TRIS Latch
D
D
RD TRISB
RD LATB
CK
CK
Q
Q
Q
Q
DD
and V
SS
1
0
.
Q
EN
Schmitt
Trigger
D
PIC18F1220/1320
V
V
P
N
TTL Input
SS
DD
Buffer
V
P
DD
Weak
Pull-up
RB3 pin
DS39605C-page 93