PIC18F2331_07 Datasheet, PDF (119/400 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D

PIC18F2331/2431/4331/4431
FIGURE 10-11: BLOCK DIAGRAM OF RB5
PORT/PWM Select
PWM4 Data
0
VDD
P
1
N
VSS
RBPU
Data Bus
WR PORTB
WR TRISB
D
Q
CK _Q
Data Latch
D
Q
CK
TRIS Latch
RD TRISB
Set RBIF
RD PORTB
From other
RB7:RB4 pins
TTL
Input
Buffer
Q
D
EN
Q1
Q
D
EN
RD PORTB
Q3
LVP Configuration Bit:
1 = Low-Voltage Programming Enable
0 = Only High-Voltage Programming
Enable ICSP™
VDD
P
Weak
Pull-up
RB5/PGM
Schmitt
Trigger
© 2007 Microchip Technology Inc.
Preliminary
DS39616C-page 117