PIC18F6X2X Datasheet, PDF (119/386 Pages) Microchip Technology – 64/80-Pin High Performance, 64-Kbyte Enhanced FLASH Microcontrollers with A/D

PIC18F6X2X/8X2X
FIGURE 10-11: PORTE BLOCK DIAGRAM IN I/O MODE
Peripheral Out Select
Peripheral Data Out
0
VDD
RD LATE
P
1
Data Bus
WR LATE
or WR PORTE
DQ
CK Q
Data Latch
N
DQ
WR TRISE
CK Q
TRIS
VSS
Override
TRIS Latch
RD TRISE
Peripheral Enable
Q
RD PORTE
Peripheral Data In
Note 1: I/O pins have diode protection to VDD and VSS.
Schmitt
Trigger
D
EN
I/O pin⁽¹⁾
TRIS OVERRIDE
Pin Override
RE0 Yes
RE1 Yes
RE2 Yes
RE3 Yes
RE4 Yes
RE5 Yes
RE6 Yes
RE7 Yes
Peripheral
External Bus
External Bus
External Bus
External Bus
External Bus
External Bus
External Bus
External Bus
FIGURE 10-12: PORTE BLOCK DIAGRAM IN SYSTEM BUS MODE
RD PORTE
QD
ENEN
RD LATE
Data Bus
WR LATE
or PORTE
WR TRISE
DQ
CK
Data Latch
DQ
CK
TRIS Latch
Port ₀
Data ₁
RD TRISE
System Bus
Control
Bus Enable
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
 2003 Microchip Technology Inc.
Advance Information
DS39612A-page 117