PIC18F6X2X Datasheet, PDF (116/386 Pages) Microchip Technology – 64/80-Pin High Performance, 64-Kbyte Enhanced FLASH Microcontrollers with A/D

PIC18F6X2X/8X2X
FIGURE 10-10: PORTD BLOCK DIAGRAM IN SYSTEM BUS MODE
RD PORTD
QD
ENEN
RD LATD
Data Bus
WR LATD
or PORTD
WR TRISD
DQ
CK
Data Latch
DQ
CK
TRIS Latch
Port ₀
Data ₁
RD TRISD
Bus Enable
System Bus
Control
Data/TRIS Out
Drive Bus
Instruction Register
Instruction Read
Note 1: I/O pins have protection diodes to VDD and VSS.
I/O pin⁽¹⁾
TTL
Input
Buffer
DS39612A-page 114
Advance Information
 2003 Microchip Technology Inc.