PIC18F6X2X Datasheet, PDF (130/386 Pages) Microchip Technology – 64/80-Pin High Performance, 64-Kbyte Enhanced FLASH Microcontrollers with A/D

PIC18F6X2X/8X2X
FIGURE 10-22:
RJ4:RJ0 PINS BLOCK DIAGRAM IN SYSTEM BUS MODE
Q
D
RD PORTJ
ENEN
RD LATJ
Data Bus
WR LATJ
or
PORTJ
D
Q
CK
Data Latch
WR TRISJ
DQ
CK
TRIS Latch
RD TRISJ
System Bus
Control
Control Out
External Enable
Drive System
Note 1: I/O pins have diode protection to VDD and VSS.
Port ₀
Data ₁
I/O pin⁽¹⁾
FIGURE 10-23: RJ7:RJ6 PINS BLOCK DIAGRAM IN SYSTEM BUS MODE
RD PORTJ
Q
D
ENEN
RD LATJ
Data Bus
WR LATJ
or
PORTJ
WR TRISJ
D
Q
CK
Data Latch
DQ
CK
TRIS Latch
System Bus
Control
RD TRISJ
UB/LB Out
WM = 01
Drive System
Note 1: I/O pins have diode protection to VDD and VSS.
Port ₀
Data ₁
I/O pin⁽¹⁾
DS39612A-page 128
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 2003 Microchip Technology Inc.