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| PIC18F6585 Datasheet, PDF (149/496 Pages) Microchip Technology – 64/68/80-Pin High-Performance, 64-Kbyte Enhanced Flash Microcontrollers with ECAN Module | |||
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PIC18F6585/8585/6680/8680
FIGURE 10-24: RH3:RH0 PINS BLOCK DIAGRAM IN SYSTEM BUS MODE
RD PORTH
Q
D
ENEN
RD LATD
Data Bus
WR LATH
or
PORTH
D
Q
CK
Data Latch
Port
0
Data 1
WR TRISH
DQ
CK
TRIS Latch
RD TRISH
System Bus
Control
External Enable
Address Out
Drive System
To Instruction Register
Instruction Read
Note 1: I/O pins have diode protection to VDD and VSS.
I/O pin(1)
TTL
Input
Buffer
 2004 Microchip Technology Inc.
DS30491C-page 147
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