PIC18F2331_07 Datasheet, PDF (117/400 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D

PIC18F2331/2431/4331/4431
FIGURE 10-9:
BLOCK DIAGRAM OF RB3:RB0
RBPU⁽¹⁾
PORT/PWM Select
PWM0, 1, 2, 3 Data
0
RD LATB
1
Data Bus
WR LATB
or PORTB
D
Q
CK Q
Data Latch
WR TRISB
D
Q
CK Q
TRIS Latch
RD TRISB
RD PORTB
Q
D
EN
VDD
P
Weak
Pull-up
VDD
P
N
VSS
TTL
Input
Buffer
RB<3:0> Pins
Note 1: To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit (INTCON2<7>).
© 2007 Microchip Technology Inc.
Preliminary
DS39616C-page 115